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UnderstandWhat it is, what people ask, how far this page goes
Natural organic and biogenic materials · Organic or biogenic material · Natural identity; treatment status unknown
Abalone Pearl
Also known asAbalone Cultured Blister (conditional name)
Natural pearls produced by abalone gastropods (genus Haliotis), usually with iridescent blue or green tones. Blister pearls cultured on abalone have a separate CIBJO name (Abalone Cultured Blister) and are not natural abalone pearls. 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 Abalone Pearl 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 Abalone PearlIdentification points from the research literature
- Caring for and wearing Abalone PearlCleaning, heat, chemicals and light, as the cited sources give them
- Abalone Pearl in English, Chinese and Japanese; national standard namesNames in four languages, the GB/T standard name and the suggested listing name; and: Which of GIA, FTC, CIBJO and Gem-A have a name for it on record, and do those agree?
- Listing and disclosing Abalone PearlThe listing name to use; what must be disclosed before sale
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
An abalone pearl is a natural pearl formed inside marine gastropods of the genus Haliotis and is a biogenic organic gem material. Unlike bivalves such as oysters, mussels, and scallops, gastropods secrete columnar nacre composed of thinner, more uniform aragonite platelets; this columnar nacre is considered one reason abalone shell and abalone pearls show strong iridescence. Abalone pearls are therefore typically irregularly shaped pearls with strong iridescence. Authoritative sources describe the columnar nacre and iridescence of abalone shell and pearls from an optical standpoint, but give no dedicated step-by-step account of the pearl forming inside the host body, so that process must be understood in light of general pearl formation and verified by testing.
Scope: Used to explain that abalone pearls come from gastropods and the relationship between their columnar nacre and strong iridescence; no over-assertion is made about specific formation steps.
Sources CIBJO Pearl Book 2024 · G&G Fall 2014 · G&G Summer 2025
Where it forms
Inside marine gastropods (genus Haliotis); a molluscan class different from bivalves
Sources CIBJO Pearl Book 2024 · G&G Summer 2025
The shell's nacre layer and the pearl interior (columnar aragonite structure)
Sources CIBJO Pearl Book 2024 · G&G Summer 2025
How it forms, step by step
The Haliotis gastropod secretes columnar nacre made of aragonite platelets.
Sources CIBJO Pearl Book 2024 · G&G Summer 2025
Nacre is deposited layer by layer to form a pearl.
Sources CIBJO Pearl Book 2024 · G&G Summer 2025
The resulting pearls are predominantly irregular in shape.
Sources CIBJO Pearl Book 2024 · G&G Summer 2025
The columnar nacre and surface microstructure produce strong iridescence.
Sources CIBJO Pearl Book 2024 · G&G Summer 2025
The specific formation steps are not described by the sources and must be inferred from general pearl formation and verified by testing.
Sources CIBJO Pearl Book 2024 · G&G Summer 2025
Link to appearance
Typically irregular in shape; the columnar nacre gives strong iridescence.
Sources CIBJO Pearl Book 2024 · G&G Fall 2014 · G&G Summer 2025
Timescale
No source gives a growth duration or absolute age for abalone pearls.
Sources CIBJO Pearl Book 2024 · G&G Fall 2014 · G&G Summer 2025
Supporting findings
Abalone pearls are produced by marine gastropods of the genus Haliotis. Gastropods deposit columnar nacre built from platelets of aragonite; these are thinner and more even than the sheet-like nacre of bivalves.
Evidence grade AScope: A general statement about nacre structure; not about a specific origin or specimen.
Sources CIBJO Pearl Book 2024 · G&G Summer 2025
Recorded localities
This is an organic material; its localities are the harvest or culture areas (waters or species ranges) recorded by authoritative sources.
Asia
- Korea (as printed)Korean culturing effort discontinued (as of 1998)
Sources Gems & Gemology Fall 1998
Oceania
- Halfmoon Bay, Stewart Island, New ZealandCultured abalone blister pearls
Sources Gems & Gemology Fall 1998
- Tasmania, AustraliaCultured blister pearls since the early 1990s
Sources Gems & Gemology Fall 1998
Seas and coasts
- Pacific OceanNatural abalone pearls
Sources CIBJO Pearl Book 2024
- CIBJO Blue Book — Pearl Book (Pearl Commission 2024-1)
- Atlantic OceanNatural abalone pearls
Sources CIBJO Pearl Book 2024
- CIBJO Blue Book — Pearl Book (Pearl Commission 2024-1)
- Indian OceanNatural abalone pearls
Sources CIBJO Pearl Book 2024
- CIBJO Blue Book — Pearl Book (Pearl Commission 2024-1)
These are localities recorded by authoritative sources, not an origin finding for any individual piece. The CIBJO Gemstone Book (2022, §4.2.3) says a place of origin names where a gem was mined or harvested, is a matter of opinion, does not imply a level of quality, and that cutting, processing or exporting centres must not be used to imply origin. See the origin determination guide and the overview of recorded localities.
Causes of colour and optical effects
Abalone shell and pearl nacre shows strong iridescence, and abalone is noted for yielding pearls of irregular shape that are strongly iridescent.
Evidence grade AScope: Describes the appearance–optics link; gives no in-body formation step.
How it is identified
Cultured, natural and imitation pearls can look alike, so the unaided eye cannot fix their category or whether a pearl was treated. Laboratory identification combines standard gemmological testing with advanced equipment: real-time X-ray radiography and microradiography gauge nacre-layer depth in bead-cultured pearls, UV-Vis reflectance spectroscopy and X-ray fluorescence (XRF) help determine pearl type and detectable treatments, and computed micro-tomography (micro-CT) may be used when finer data are needed. Limitations: classification depends on comparison with reference master sets, thin nacre makes instrumental measurement still more necessary, and the final conclusion must be issued by an accredited pearl laboratory through testing.
Evidence grade AScope: Identification and classification points; testing must be performed by an accredited pearl laboratory, and no self-test thresholds are given.
Sources GIA: How GIA Identifies Pearls · CIBJO Pearl Book 2024
Other research findings
CIBJO's Pearl Book 2024 gives 'Abalone Pearl' (5.2) a formal definition: it is a natural pearl of a typically multi-coloured blue or green hue that occurs in gastropod molluscs belonging to the genus Haliotis (9.28) across the Pacific, Atlantic and Indian Oceans. 'Abalone pearl' is thus a term backed by an authoritative naming definition.
Evidence grade AScope: Naming definition from CIBJO 5.2 (a natural pearl); the standard gives no in-body formation steps, which are covered from general nacre knowledge (see the nacre-structure finding above).
Sources G&G Summer 2025 · CIBJO Pearl Book 2024
Non-nacreous pearls (e.g., conch, clam, Melo, Cassis, and scallop) are often submitted to GIA for identification, showing their determination relies on surface features and structural testing.
Evidence grade AScope: The source lists non-nacreous pearls such as conch but does not specifically mention abalone pearls.
Pearl quality is usually assessed through lustre, nacre thickness, surface, shape, colour and matching (GIA summarises the pearl value factors as seven: size, shape, colour, nacre, lustre, surface and matching). Abalone pearls are produced by abalone (not pearl oysters) and typically show a distinctive iridescence and irregular shape, so evaluation emphasises the richness and play of colour, lustre, surface condition and overall form, rather than the regularity and matching prized in pearl-oyster pearls. The market prizes their distinctive colour patches and iridescence, but because they are non-nacreous pearls from a non-pearl-oyster mollusc, they are evaluated differently from conventional pearls. Category and any treatment must be determined by an accredited laboratory through testing.
Evidence grade AScope: This describes the pearl quality characteristics the market generally prizes; it is not a grade for any specific specimen and is neither price nor investment advice; pearl category (natural or cultured) and any treatment must be determined by an accredited laboratory on the specific specimen.
Sources GIA: How GIA Identifies Pearls · CIBJO Pearl Book 2024
Limits of this research
- Research status: Formation, occurrence or other material-specific findings found in authoritative sources
- There is no dedicated authoritative source for the in-body formation steps of abalone pearls; the account rests on general knowledge of nacre structure.
- No authoritative source supports “abalone pearl” as a defined independent trade name, so this judgement is rated C.
- No direct source for a non-nacreous classification is available; the non-nacreous examples cited do not specifically include abalone pearls.
- No growth duration or absolute age is available.
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
- Abalone pearl (state natural or cultured blister)
CIBJO Pearl Book 2024 §5.2 “Abalone Pearl”, §5.1 “Abalone Cultured Blister”, 7.2.1
Construction or treatment status
Natural identity; treatment status unknown
Related:Disclosure and cautions
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
"Abalone Pearl" is a market name rather than a mineral species name; before using it, verify: An explicit qualifier must accompany the name.
Evidence
- CIBJO · 5.2
What this means for you
Before buying, check the recommended listing name "Abalone pearl (state natural or cultured blister)" 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
- 2026-09-26
Trade-name ruling
- An explicit qualifier must accompany the name.
- Suggested listing name
- Abalone pearl (state natural or cultured blister)
Care and wear
Care
Abalone Pearl — care (wear): Abalone (9.1) as well as natural and cultured blisters (5.133 and (5.57) are prone to fracture easily and shall have special care advice that includes instructions that they are not for everyday wear and should not be worn while carrying out heavy work.
CIBJO Pearl Book 2024
- Treatment state
- any treatment state
- Applies only to
- abalone pearls, natural blisters and some cultured blisters
Source & check 2026-09-26
- Source
- CIBJO Blue Book — Pearl Book (Pearl Commission 2024-1) (CIBJO): §7.2.1 (Annex B, normative), p.49 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Each row's “Source & check” expands to the full source; the date beside it is the fact check date.
Common care questions and matching entries
The care (wearing) conclusion for Abalone Pearl comes from the CIBJO Pearl Book 2024: Abalone Pearl breaks easily, so it is not suited to everyday wear and should not be worn during heavy physical work. The scope covers only abalone pearls, natural blister pearls and some cultured blister pearls, in any treatment state.
This table scrolls sideways on narrow screens.
| Question | Matching entries |
|---|---|
| Wearing limits (knocks, settings) | abalone pearls, natural blisters and some cultured blisters: care (wear) |
VerifyNames, standards, technical facts, clauses and sources
Names
Besides Abalone Pearl, the name register records "Abalone Cultured Blister", for which no restriction on use as a name is recorded (CIBJO Pearl Book 2024 §5.1 “Abalone Cultured Blister”).
Standard and listing namesUnder GB/T 16552—2017 Table A.3, Abalone Pearl corresponds to the name "natural pearl"; Abalone Pearl itself is not listed in the GB/T 16552—2017 text. The suggested listing name is "Abalone Pearl (state natural or cultured blister)": on the market, "abalone pearl" is also often used for cultured blisters grown on abalone, so natural abalone pearls and cultured blisters grown on abalone must be described separately. Institution usageThe CIBJO Pearl Book 2024 lists Abalone Pearl; the FTC text has no wording for this name (checked); GIA and Gem-A have not been checked, and bodies without a recorded wording show the entry's own English name, which does not represent their position. Japanese namesThe GSJ (Japan) formal name is marked as the entry's own Japanese name (pending check); the GSJ's wording for it has not yet been verified by this site. Names in four languagesThe four-language names are the Simplified Chinese, Traditional Chinese, English (Abalone Pearl) and Japanese (pending check) names. Trade and mineralogical namesThe mineralogical name is natural pearl produced by gastropods of the genus Haliotis. Institution usageAbalone Cultured Blister is the separate name the CIBJO Pearl Book 2024 gives to cultured blisters grown on abalone. Candidate search termsIt serves only as a candidate search term and is not a natural Abalone Pearl.
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 |
|---|---|---|---|---|
| no restriction recorded (1) | ||||
| Abalone Cultured BlisterEnglish | narrower name (variety or subtype) | search candidate only | no restriction recorded | CIBJO Pearl Book 2024 §5.1 “Abalone Cultured Blister”; Note: CIBJO Pearl Book 2024 §5.1 gives cultured blisters grown on abalone this separate name; they are not natural abalone pearls, so the name is kept as a search candidate only. |
How each authority words this name: see Names › Authority wording.
- GSJ (Japan) formal name
- アワビ真珠（待核） (not yet checked for this body — the entry's own Japanese name is shown)
- GB/T naming counterpart (this name is not in the standard)
- 天然珍珠 (GB/T 16552—2017 Table A.3)
- Mineralogical name
- Abalone pearl: natural pearl from gastropods of the genus Haliotis
- Trade names and synonyms
- Abalone Cultured Blister (narrower name (variety or subtype); conditional name)
Four-language names
- 简体中文
- 鲍鱼珍珠
- 繁體中文
- 鮑魚珍珠
- English
- Abalone Pearl
- 日本語
- アワビ真珠（待核）
See also: Misleading and prohibited trade names · Supplementary name index
Classification
- Origin
- Natural materials
- Material domain
- Natural organic and biogenic materials
- Browsing family
- Pearl and molluscan shell materials
- Identity tier
- Organic or biogenic material
- Mineral chemical class
- Not applicable
- Construction or treatment status
- Natural identity; treatment status unknown
What it is and how it's identified
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”.
Structure
Abalone Pearl — structure (overall): Natural abalone pearls are often hollow and so fragile
CIBJO Pearl Book 2024
Source & check 2026-09-26
- Source
- CIBJO Blue Book — Pearl Book (Pearl Commission 2024-1) (CIBJO): §7.2.1 note (Annex B, normative), p.49 (locator checked 2026-09-26)
- Fact checked on
- 2026-09-26
Each row's “Source & check” expands to the full source; the date beside it is the fact check date.
Pearl-producing molluscs (CIBJO Annex D)
Pearl-producing molluscs (CIBJO Annex D): §9.1 Abalone
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.
- CIBJO – The World Jewellery Confederation. The Pearl Book (Blue Book), 2024.
- SAMR / SAC (China). GB/T 16552—2017 Gems — Nomenclature.
- eCFR (United States). 16 CFR Part 23 — Guides for the Jewelry, Precious Metals, and Pewter Industries.
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 Pearl on this site: 17 entries listed by this site's parent-entry links; synthetic, treated and similar entries carry their recorded state after the name; this page (Abalone Pearl) is marked.
- Pearl
Sub-entries (16)
- Abalone Pearl
- Akoya Cultured Pearl
- Baroque Cultured Pearl
- Blister Pearl
- Circled Cultured Pearl
- Cultured Pearl
- Freshwater Cultured Pearl
- Freshwater Natural Pearl
- Keshi Cultured Pearl
- Natural Conch Pearl / Natural Melo Pearl
- Natural Pearl
- Saltwater Cultured Pearl
- Saltwater Natural Pearl
- South Sea Cultured Pearl
- Tahitian Cultured Pearl
- White South Sea Cultured Pearl
This table scrolls sideways on narrow screens.
| Page | Content | Status |
|---|---|---|
| Browsing family | Pearl and molluscan shell materials | Live |
| Related articles | To be added (placeholder) | Planned |
Who maintains this page
The material facts in the Abalone Pearl 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. The entry exists so that buyers and sellers can check naming, disclosure and material facts item by item.