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Artificial products / Manufactured products · Artificial product type · Synthetic product
Synthetic Ruby
Synthetically made red corundum, the counterpart of natural Ruby; GB/T 16552-2017 Annex A Table A.4 lists it as "synthetic ruby". This page compares how the major standards and institutions name it, what must be disclosed when selling it, whether it can be worn every day, how it is treated and identified, and which source each conclusion comes from.
Price, rarity and origin are outside the scope of this wiki.
What this page can answer
This page covers
- How Synthetic Ruby forms and what gives its colourFormation setting, process and timescale; where its colour and optical effects come from, each finding graded and sourced
- How to identify Synthetic RubyIdentification points from the research literature
- Hardness, density and refractive index of Synthetic RubyEach value with its source and check date
- Synthetic Ruby in English, Chinese and Japanese; national standard namesNames in four languages, the GB/T standard name and the suggested listing name, names in national standards; and: Do GIA, FTC, CIBJO and Gem-A use the same wording for it?
- Listing and disclosing Synthetic RubyThe listing name to use; what must be disclosed before sale
- Standard clauses that define Synthetic RubyWhich clause defines it, each cross-checked
What we cannot conclude
- Whether one particular bead is natural, treated or synthetic — only a laboratory report can settle that.
- Geographic origin, unless an origin report accompanies the item.
- Price, rarity or investment value: this wiki covers naming and disclosure only.
Material research: formation, causes and history
What authoritative sources say about how this material forms, what causes its colour and optical effects, where its name comes from and how people have used it. Each statement carries an evidence grade and its sources; it describes the material in general, not any specific piece.
How it forms
Synthetic ruby is man-made red corundum whose natural counterpart is ruby. Its red colour is caused by chromium (Cr3+) deliberately added—the same colouring mechanism as natural ruby. It is usually manufactured by melt-growth methods (e.g., the Verneuil flame-fusion or Czochralski pulling technique), growing single crystals from a Cr-doped Al2O3 charge. The invention of the laser in the 1960 drove the growth of large, very-high-purity synthetic ruby (laser ruby) crystals. Under CIBJO rules, synthetic ruby must be clearly labelled “synthetic ruby / laboratory-grown ruby” and must not be called simply ruby.
Scope: Applies to red synthetic corundum that is artificially manufactured, coloured by Cr and corresponds to natural ruby; gives no authenticity identification conclusion for any batch.
Sources CIBJO Gemstone Book 2022 · G&G Spring 2020 · G&G Fall 2017
- CIBJO Blue Book — Official Gemstone Book (Coloured Stone Commission 2022)
- A Quantitative Description of the Causes of Color in Corundum (Gems & Gemology, Spring 2020, Vol. 56, No. 1)
- Synthetic Star Sapphires and Rubies Produced by Wiede’s Carbidwerk, Freyung, Germany (Gems & Gemology, Fall 2017, Vol. 53, No. 3)
Where it forms
An artificial crystal-growth setting: high-temperature melts and laboratory/factory crystal-growth facilities (flame-fusion or pulling furnaces), not a natural geological environment.
Sources CIBJO Gemstone Book 2022 · G&G Spring 2020 · G&G Fall 2017
- CIBJO Blue Book — Official Gemstone Book (Coloured Stone Commission 2022)
- A Quantitative Description of the Causes of Color in Corundum (Gems & Gemology, Spring 2020, Vol. 56, No. 1)
- Synthetic Star Sapphires and Rubies Produced by Wiede’s Carbidwerk, Freyung, Germany (Gems & Gemology, Fall 2017, Vol. 53, No. 3)
How it forms, step by step
Prepare a Cr-doped Al2O3 charge: a high-purity alumina base with chromium (Cr2O3) added as the red colorant.
Grow corundum single crystal by a melt method: melt the charge and crystallize red corundum (e.g., Verneuil flame fusion or Czochralski pulling).
Anneal, cut and polish, and clearly label the product as “synthetic ruby”.
Link to appearance
Synthetic ruby is red because the deliberately added Cr3+ absorbs in the corundum lattice—the same colouring mechanism as natural ruby; with composition and structure matching natural ruby, basic gemological properties are similar, and identification rests mainly on internal growth features.
Sources CIBJO Gemstone Book 2022 · G&G Spring 2020
Timescale
The cited sources give example timescales for historical synthetic (star) ruby: about 166 minutes of melting for a 13 mm crystal and annealing at 1100–1500°C; these are process-specific figures, not general values.
Sources CIBJO Gemstone Book 2022 · G&G Spring 2020 · G&G Fall 2017
- CIBJO Blue Book — Official Gemstone Book (Coloured Stone Commission 2022)
- A Quantitative Description of the Causes of Color in Corundum (Gems & Gemology, Spring 2020, Vol. 56, No. 1)
- Synthetic Star Sapphires and Rubies Produced by Wiede’s Carbidwerk, Freyung, Germany (Gems & Gemology, Fall 2017, Vol. 53, No. 3)
Related base materials
- Synthetic corundum: Higher-level category: synthetic ruby is red synthetic corundum
- Corundum (Al2O3): Synthetic counterpart: red synthetic corundum, whose natural counterpart is ruby
- Alumina (Al2O3) nutrient powder: Raw material/precursor for artificial crystal growth, doped with chromium (Cr) to obtain a red colour
Supporting findings
Melt-growth techniques — flame fusion and pulling, for instance — are used to manufacture synthetic ruby, and after the laser was invented in 1960 there was a push to grow large synthetic ruby crystals of very high purity.
Evidence grade AScope: Concerns the man-made growth route and its science-history background; process parameters of specific equipment are not covered.
Causes of colour and optical effects
The red colour of synthetic ruby is caused by Cr3+, the same colouring mechanism as natural ruby.
Evidence grade AScope: Concerns the Cr3+ colouring mechanism; other optical differences such as fluorescence are not covered.
How it is identified
Synthetic and natural ruby resemble each other, and the eye or routine methods are often not enough to separate them. A laboratory can work from trace-element signatures: energy-dispersive X-ray fluorescence is used to read the trace-element suite and to weigh elements that may indicate a synthetic source, together with growth features; because some stones deviate, all the evidence has to be taken together, and the final call should be issued by an accredited laboratory.
Evidence grade AScope: Synthetic ruby determinations must come from an accredited laboratory and weigh all evidence rather than one indicator.
Synthetic ruby is man-made red corundum. Such material is man-made, so natural origin determination does not apply. Origin determination is meaningful only for natural stones: for synthetic material the synthesis or treatment status has to be settled first, and a place name attached to it is at most a brand or a place of manufacture, not a geological source. Any separation of species or naturalness must be issued by a qualified laboratory for a specific specimen, and origin cannot be inferred from appearance or name.
Evidence grade AScope: Origin cannot be inferred from appearance or name; an origin conclusion must be issued by a qualified laboratory for a specific specimen, and this entry provides no self-test criteria or thresholds.
Sources G&G Winter 2019 · G&G Summer 1998 · G&G Spring 2015 +1
- Geographic Origin Determination of Ruby (Gems & Gemology, Winter 2019, Vol. 55, No. 4)
- Separating Natural and Synthetic Rubies on the Basis of Trace-Element Chemistry (Gems & Gemology, Summer 1998, Vol. 34, No. 2)
- Mozambique Ruby Discovery: A 21st Century Rush (Gems & Gemology, Spring 2015, Vol. 51, No. 1)
- Sapphire Beneath the Rich Black Soil of Muling, Northeastern China (Gems & Gemology, Fall 2022, Vol. 58, No. 3)
Other research findings
Synthetic ruby is man-made red corundum corresponding to natural ruby (a synthetic stone) and must be labelled as “synthetic ruby”.
Evidence grade AScope: Uses CIBJO’s synthetic-stone definition and naming rule; no commercial brand involved.
Sources CIBJO Gemstone Book 2022
Limits of this research
- Research status: Formation, occurrence or other material-specific findings found in authoritative sources
- Synthetic/man-made information comes from the CIBJO definition and GIA laboratory research; details of historical patented processes come from a literature review and do not represent the specific process of all synthetic corundum on the market.
- The growth methods cited (Verneuil, Czochralski) are examples; other melt-growth or flux methods can also produce the same material.
Methodology
- Origin determination and its limits
- Quality grading and value factors
- How gemmology became a technical discipline
Evidence grades
- A
- Standards bodies, government geological surveys, peer-reviewed research and museum records
- B
- Institutional educational material
- C
- Specialist databases or cautious readings
A statement is never graded above its strongest source.
This section is LumaLark's own factual restatement of public authoritative sources, credited item by item; it contains no verbatim excerpts, images or third-party logos.
DecideListing name, disclosure, care and treatments
- Suggested listing name
- Synthetic Ruby
GB/T 16552—2017 Table A.4 “Synthetic Ruby” · CIBJO Gemstone Book 2022 4.3.3.1
This page cannot answer
Natural? · Origin · Price
A lab report settles these; this wiki covers naming and disclosure.
Related:What this page can answer
Answer at a glance
"Synthetic Ruby" is a market name rather than a mineral species name; before using it, verify: Not a mineral: man-made or non-mineral material.
Evidence
- GB/T · Table A.4, row 合成红宝石 (Synthetic Ruby)
What this means for you
Before buying, check the recommended listing name "Synthetic Ruby" and any disclosed treatments on this page, and ask the seller for a grading report if in doubt.
Known uncertainty
- This entry's exact material identity is not fully settled.
- See “Disclosure and cautions” above
- Last reviewed
- 2026-09-01
Trade-name ruling
- Not a mineral: man-made or non-mineral material.
- Suggested listing name
- Synthetic Ruby
Care and wear
No care facts are recorded for this entry itself. Its parent material has care records: see Ruby.
VerifyNames, standards, technical facts, clauses and sources
Names
The name register below lists 2 names for Synthetic Ruby in non-Latin scripts: 2 that must not be used as a name.
Standard and listing namesThe Chinese formal name for Synthetic Ruby comes from GB/T 16552—2017 Table A.4, and the suggested listing name is also Synthetic Ruby. Names in four languagesThe four-language names are given in Simplified Chinese, Traditional Chinese, English (Synthetic Ruby) and Japanese. Institution usageAmong authority wordings, GIA lists Laboratory-grown Ruby, the FTC lists Laboratory-created Ruby and requires disclosure as laboratory-grown, and CIBJO and Gem-A list Synthetic Ruby; the entry's own Japanese name is shown, and the Japanese GSJ wording for it is not yet verified by this site. National standard namesNational and regional formal names: Germany (RAL) writes Synthetischer Rubin (RAL 560 A6); the EU writes Synthetic Ruby, with synthetisch or künstlich hergestellt to be disclosed; France (DGCCRF) writes Rubis synthétique, with synthétique placed before the name; India (BIS) and Thailand (GIT) write Synthetic Ruby. Sub-names and unacceptable namesTwo Chinese market names, meaning “red corundum” and “rubin stone”, are only candidate search terms and are not acceptable; GB/T 16552—2017 cites them as counter-examples of confusing or ambiguous names that should not be used, so they are counter-examples, not trade names.
Name register
Every name recorded for this entry, with how it is classified, whether it may be matched to this entry automatically, whether it may be used as a product name, and the clause it rests on.
This table scrolls sideways on narrow screens.
| Name | Type | Matching | Use as a name | Basis |
|---|---|---|---|---|
| not to be used as a name (2) | ||||
| 红刚玉Simplified Chinese | market name | search candidate only | not to be used as a name | GB/T 16552—2017 5.1.3.1 c); Note: GB/T 16552—2017 §5.1.3.1 c) uses it as the example of a rule: confusing or ambiguous names must not be used (a counter-example, not a trade name). |
| 鲁宾石Simplified Chinese | market name | search candidate only | not to be used as a name | GB/T 16552—2017 5.1.3.1 c); Note: GB/T 16552—2017 §5.1.3.1 c) uses it as the example of a rule: confusing or ambiguous names must not be used (a counter-example, not a trade name); the standard name is synthetic ruby. |
How each authority words this name: see Names › Authority wording.
- GSJ (Japan) formal name
- 合成ルビー (not yet checked for this body — the entry's own Japanese name is shown)
- Chinese formal name
- 合成红宝石 (GB/T 16552—2017 Table A.4)
- Mineralogical name
- Synthetic red corundum corresponding to ruby
Four-language names
- 简体中文
- 合成红宝石
- 繁體中文
- 合成紅寶石
- English
- Synthetic Ruby
- 日本語
- 合成ルビー
National and regional formal names
- Germany (RAL)
- Synthetischer Rubin (RAL 560 A6)
- European Union
- Synthetic Ruby (EU: must disclose "synthetisch"/"künstlich hergestellt")
- India (BIS)
- Synthetic Ruby; must be disclosed as "synthetic" under BIS guidelines
- Thailand (GIT)
- Synthetic Ruby; GIT lab discloses synthesis method on certificate
- France (DGCCRF)
- Rubis synthétique (DGCCRF: "synthétique" obligatoire avant le nom)
Qualifiers stripped from the headline name
See also: Misleading and prohibited trade names · Supplementary name index
Classification
- Origin
- Artificial products / Manufactured products
- Material domain
- Artificial products / Manufactured products
- Browsing family
- Synthetic gem products
- Identity tier
- Artificial product type
- Mineral chemical class
- Mixed / composition-dependent
- Construction or treatment status
- Synthetic product
What it is and how it's identified
The registered material facts for Synthetic Ruby are: composition Al2O3, containing Cr and other elements; flux-grown products may also contain components from the flux such as Pb, Pt, Ni, W, La, Mo, Fe, V and Ti, and hydrothermal products may contain elements such as Ca, As and K. The structure is crystalline and trigonal; as crystal habit, flame-fusion material forms boules, flux-grown material rhombohedra and hydrothermal material tabular crystals. Mohs hardness is 9 and there is no cleavage; this site notes that hardness alone is not enough to judge durability. Density is 3.95–4.05 g/cm³, the cited clause giving 4.00 with a tolerance of ±0.05, from which the limits are derived. The optic character is anisotropic, uniaxial negative; refractive index is 1.757–1.779, the cited clause giving 1.762–1.770 with a tolerance of +0.009/−0.005, from which the limits are derived; birefringence is 0.008–0.01. When untreated, pleochroism is strong, purplish red and orangey red; long-wave UV fluorescence is strong, red to orangey red; the body colour is red, orangey red or purplish red; and the lustre is vitreous to subadamantine. The UV-visible spectrum shows absorption peaks such as 694nm, an absorption band at 540~620nm and absorption in the violet region; in the infrared spectrum, Al-O vibrations of corundum produce characteristic bands in the mid-infrared; asterism can be seen.
Registered material facts
Each row carries its own source and check date and can be cited on its own; “—” means the cited source gives no value, not “none”.
Definition
Synthetic Ruby — composition (chemistry): Al2O3, carrying elements such as Cr. Material grown by the flux-melt method may also carry flux components such as Pb, Pt, Ni, W, La, Mo, Fe, V and Ti; material grown by the hydrothermal method may carry elements such as Ca, As and K.
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-22
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-22)
- Fact checked on
- 2026-09-22
Structure
Synthetic Ruby — structure (overall): crystalline
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Synthetic Ruby — structure (crystal system): trigonal
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Synthetic Ruby — structure (crystal habit): rods (flame fusion); rhombohedra (flux melt); plates (hydrothermal growth).
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Durability
Synthetic Ruby — Mohs hardness: 9
GB/T 16553—2017
Reference points on this site: Talc 1–3, Fluorite 4, Apatite 5–5.5, Orthoclase 6–6.5, Topaz 8, Diamond 10 (Source: GB/T 16553—2017); Gypsum 1.5–2, Calcite 3, Quartz 7 (Source: Handbook of Mineralogy); Corundum 9 (Source: GIA Gem Encyclopedia (care guide))
- Does this standard apply
- applies to this entry
- General note
- hardness only, not durability
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Synthetic Ruby — cleavage: none
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Physical properties
Synthetic Ruby — density: 3.95–4.05 g/cm³
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- Qualification
The clause we cite gives 4.00, with a stated tolerance of ±0.05. The range shown here is worked out from that.
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Optical
Synthetic Ruby — optic character: uniaxial, optically negative (anisotropic)
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Synthetic Ruby — refractive index: 1.757–1.779
GB/T 16553—2017
- Does this standard apply
- applies to this entry
- Qualification
The clause we cite gives 1.762–1.770, with a stated tolerance of +0.009 / -0.005. The range shown here is worked out from that.
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Synthetic Ruby — birefringence: 0.008–0.01
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Synthetic Ruby — pleochroism: strong, purple-red and orange-red
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Synthetic Ruby — fluorescence (long-wave UV): strong, red, orange-red
GB/T 16553—2017
UV fluorescence (long-wave UV)redorange-redstrongDots are illustrative colours built from the colour names, not measured values
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Synthetic Ruby — fluorescence (short-wave UV): moderate to strong, red, pink-red, pink-white
GB/T 16553—2017
UV fluorescence (short-wave UV)redpink-redpink-whitemoderate–strongDots are illustrative colours built from the colour names, not measured values
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Synthetic Ruby — spectrum (UV-visible): 694 nm absorption peak; 692 nm absorption peak; 668 nm absorption peak; 659 nm absorption peak; 540~620 nm absorption band; 476 nm absorption peak; 475 nm absorption peak; 468 nm absorption peak; absorption in the violet region.
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Synthetic Ruby — spectrum (infrared): Al-O vibration in corundum gives diagnostic mid-IR bands. Hydrothermally grown synthetic ruby departs from natural ruby in its functional-group-region bands (OH, mineralizers and so on).
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-22
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-22)
- Fact checked on
- 2026-09-22
Synthetic Ruby — optical effect (asterism): seen
GB/T 16553—2017
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Synthetic Ruby — magnification: flame fusion method: bubble, curved growth striations; flux method: flux inclusions, platinum platelets of triangular or hexagonal outline, comet-tail inclusions, syrup-like swirls; hydrothermal method: branching (dendritic) growth striations, color band, gold-coloured metal flakes, colourless, transparent inclusions forming a gauze-like mesh, or nail-shaped ones.
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Synthetic Ruby — body colour: red, orange-red and purple-red
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
- Qualification
The colours GB/T 16553—2017 lists for Ruby overlap with this entry: red, orange-red and purplish red.
- General note
- colour alone is not identity
Source & check 2026-09-26
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
- CIBJO definitions
- asterism
Quality factors
Synthetic Ruby — quality factor (lustre): vitreous to subadamantine
GB/T 16553—2017
- Treatment state
- untreated
- Does this standard apply
- applies to this entry
Source & check 2026-09-21
- Source
- GB/T 16553—2017 Gems — Testing (GB/T): §5.4.2 (locator checked 2026-09-21)
- Fact checked on
- 2026-09-21
Each row's “Source & check” expands to the full source; the date beside it is the fact check date.
This material (RI / SG midpoints): 1.768 / 4; Closest values: 1Rhodolite 1.755 / 3.9, 2Almandine 1.79 / 3.9, 3Grossular 1.745 / 3.9, 4Tsavorite 1.74 / 3.9, 5Spessartine 1.802 / 3.9
Show the full chart (330 registered materials)
Outside the full chart's range, drawn as triangles at the edge (RI / SG midpoints): Hematite 3.045/5.12, Synthetic Rutile 2.76/4.26, Rutile 2.753/4.23, Synthetic Moissanite 2.67/3.22
Clause-level definitions
Synthetic Ruby has a clause-level definition in GB/T 16552—2017 Annex A, Table A.4 under the entry Synthetic Ruby, summarised as synthetic red corundum corresponding to ruby; the cross-check result for this clause is that GB/T lists it directly, and no CIBJO entry under the same standalone heading was found. Naming rules for this class of material are also in the clauses on describing and displaying synthetic gems in the CIBJO Gemstone Book 2022.
This table scrolls sideways on narrow screens.
| Term | Clause | Definition | Cross-check |
|---|---|---|---|
| Synthetic Ruby | GB/T 16552-2017 Annex A | Synthetic red corundum corresponding to ruby | Listed directly by GB/T; CIBJO carries no standalone entry under the same name. |
Evidence and sources
Authority basis and clause sources
Sources
- CIBJO – The World Jewellery Confederation. Gemmological Laboratories Book (Blue Book), Gemmological Commission 2024-1.
- CIBJO – The World Jewellery Confederation. The Gemstone Book (Blue Book), 2022.
- SAMR / SAC (China). GB/T 16552—2017 Gems — Nomenclature.
- Federal Trade Commission (United States). In the Loupe: Advertising Diamond, Gemstones and Pearls.
Further reading
Related entries and topic cluster
Parent entry and related pages on this site. Rows marked “Planned” are suggested new content and have no link yet.
Related-entry tree for Corundum on this site: 18 entries listed by this site's parent-entry links; synthetic, treated and similar entries carry their recorded state after the name; this page (Synthetic Ruby) is marked.
- Corundum
Sub-entries (13)
- Colour-change Sapphire
- Green Sapphire
- Orange Sapphire
- Padparadscha Sapphire
- Pink Sapphire
- Purple Sapphire
- Ruby
Sub-entries (2)
- Lead-Glass-Filled Ruby
- Synthetic Ruby (Synthetic product)
- Sapphire
Sub-entries (2)
- Beryllium-Diffused Sapphire
- Synthetic Sapphire (Synthetic product)
- Star Ruby
- Star Sapphire
- Synthetic Corundum (Synthetic product)
- White Sapphire
- Yellow Sapphire
This table scrolls sideways on narrow screens.
| Page | Content | Status |
|---|---|---|
| Browsing family | Synthetic gem products | Live |
| Related articles | To be added (placeholder) | Planned |
Who maintains this page
The material facts in the Synthetic Ruby entry are maintained by the LumaLark wiki and matched one by one to the standard clauses or institutional sources they cite: every fact carries its source (with a clause or page locator) and a check date, so it can be traced back to the original; clause-level definitions also carry a cross-check result. The entry exists so that buyers and sellers can check naming, disclosure and material facts item by item.