Sellers & Certification

This page lists publicly documented sellers of Zultanite (gem-quality color-change diaspore) along with the recognized certification laboratories buyers should consult before any transaction. Inclusion does not constitute endorsement. Zultpedia does not sell, broker, or appraise; we document publicly available trade information for reference. Always verify any seller’s lab report and provenance claims through GIA, IGS, or a recognized national laboratory.

How to use this directory

Each entry below lists the seller’s public name, role in the supply chain, mailing or business address (where listed publicly), country, and storefront URL. Where geographic coordinates are public, an embedded map pin and an OpenStreetMap link are provided. Online-only retailers list their site of operation than a physical storefront.

Inclusion criteria: publicly listed Zultanite/color-change-diaspore offering, traceable URL, transparent identification of physical or digital storefront. Inclusion is not endorsement. Zultpedia neither audits inventory nor verifies seller claims. Buyers should independently verify any specific stone via a recognized gemological laboratory before transacting.

Directory

Zultanite Gems LLCVerifiedWZP-1A2C-41D7

Trademark Holder · Brand Owner

15 West 47th StreetNew York, NY 10036United States

U.S. registered trademark holder of the Zultanite® mark. Publishes the suggested-retail price table and provides certification and provenance documentation for stones cut from İlbir Mountains rough.

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Provenance GemsVerifiedWZP-CDA6-BA90

Authorized Distributor

Online · Worldwide shippingUnited States

Online distributor specializing in single-source colored gemstones with provenance documentation. Stocks Zultanite at multiple weight bands with lab reports.

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MoreGemsVerifiedWZP-601D-4D12

Specialty Retailer

Online · Worldwide shippingUnited States

Specialty colored-stone retailer with curated Zultanite inventory and educational content on color-change diaspore.

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GIA — Gemological Institute of AmericaVerifiedWZP-FFEE-310F

Certification (not a seller)

5345 Armada DriveCarlsbad, CA 92008United States

Certification laboratory, not a seller. Listed here because GIA reports are the recognized standard buyers should request when transacting.

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IGS — International Gem SocietyVerifiedWZP-22A2-300E

Reference & Identification (not a seller)

Online · Reference serviceUnited States

Reference body, not a seller. Listed here because IGS publishes the buyer-facing identification framework for color-change diaspore.

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İlbir Mountains (Source Locality)

Mining Region

Muğla ProvinceTürkiye

The single mountain range on Earth currently producing gem-quality color-change diaspore. Pinned as the source-locality reference, not a seller.

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Bufavento JewelsVerifiedWZP-B920-085D

Authorized Retailer · Jeweler

Haspolat Organize Sanayi Bölgesi, MS, 18249Lefkoşa (Nicosia)Northern Cyprus

Authorized Northern Cyprus-based jeweler offering color-change diaspore. Phone: +44 20 3808 5223. Repair services available. 4.5 stars (354 reviews on public listing).

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Galata Bodrum Gold CenterVerifiedWZP-18FF-9441

Authorized Retailer · Jewelry Store

Yüksel Çağlar İş Merkezi, Yokuşbaşı, Kıbrıs Şehitleri Cd. D:21Bodrum / Muğla, 48400Türkiye

Authorized Türkiye-based jewelry store offering color-change diaspore. Phone: +90 252 316 20 47. Repair services available. 4.3 stars (144 reviews on public listing).

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Galata QualityVerifiedWZP-39F9-D617

Authorized Retailer · Jewelry Manufacturer

AcarlarSelçuk / İzmir, 35920Türkiye

Authorized Türkiye-based jewelry manufacturer offering color-change diaspore. Phone: +90 232 892 02 20. 4.4 stars (536 reviews on public listing).

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Nascita Gioielleria JewelleryVerifiedWZP-AA75-800C

Authorized Retailer · Jewelry Manufacturer

Al Boom Tourist Village, 4/2 - G Floor - 315 Sheikh Rashid Rd - Umm Hurair SecondDubaiUnited Arab Emirates

Authorized Dubai-based jewelry manufacturer offering color-change diaspore. Phone: +971 4 235 4170.

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Orko Kuyumculuk (Akche Jewelry)VerifiedWZP-8912-3020

Authorized Türkiye Retailer

BodrumTürkiye

Authorized Türkiye-based jeweler (Orko Kuyumculuk / Akche Jewelry) offering color-change diaspore. Address and storefront URL pending editorial verification.

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Diana JewelryVerifiedWZP-C298-B162

Authorized Retailer · Jewelry Manufacturer

Kovacko Polje BB, between Budva and Kotor (15 km)BudvaMontenegro

Authorized Montenegro-based jewelry manufacturer offering color-change diaspore. Phone: +44 20 3318 3737.

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Verifying a Zultanite purchase

1. Demand a lab report. A GIA, IGS, or recognized national-lab report should accompany any meaningful Zultanite transaction. The report should confirm species (color-change diaspore, α-AlO(OH)) and origin (Türkiye).
2. Photograph the stone under three illuminants. Daylight (D65, ~6500 K), indoor incandescent (~3000 K), and candlelight (~1850 K). The shift between sage-green and raspberry-pink should be visible. Have the seller or lab provide these photos, not yourself.
3. Verify the carat weight and dimensions. The lab report should match the seller’s claimed weight to two decimal places.
4. Compare against the suggested-retail table. See /value/ for the published per-carat reference figures.
5. Trace provenance to Türkiye. Zultanite is a single-source gem. Documentation should trace back to İlbir Mountains, Muğla Province.

What to avoid

• Sellers without lab reports — for any stone above the smallest sizes.
• Investment guarantees — see /value/ for why we do not treat Zultanite as an investment.
• “Treated Zultanite” — gem-quality color-change diaspore is sold untreated. Any “treatment” claim is misleading or misidentified material.
• Non-Türkiye origin without disclosure — diaspore exists in many localities, but only İlbir Mountains material is gem-quality color-change. Other-locality diaspore should be sold as such, not under the Zultanite trade name.

Reporting an inaccuracy

If a seller listed here has changed address, ceased operations, or you have evidence of misrepresentation, write to ✉. Corrections are acknowledged publicly and dated.

Last verified: 2026-04-27. Listings reflect publicly available information at the time of fact-check; current accuracy is the seller’s responsibility. The directory is revised by the Zultpedia editorial team on a continuous fact-check cadence.