Radical transparency · Live from the catalogue

The Treatment Register

Every stone we sell is a 100% natural, earth-mined gemstone, verified by our FGAA-qualified gemmologist — we do not sell synthetic or man-made stones, ever. This register lists each loose stone’s natural status and certification state, rendered live from our catalogue, so our disclosure can be checked by anyone, at any time. No gem house we know of publishes this. We think they all should.

Live as of 4 October 2026 · register updates automatically as laboratory results are confirmed

85Stones · all 100% natural
18Natural · unheated
6Natural · heated, disclosed
0Awaiting lab confirmation

How to read this register. Every stone listed is a 100% natural, earth-mined gemstone, verified by our FGAA-qualified gemmologist; none is synthetic or man-made. Natural · unheated means no thermal enhancement — the rarest state. Natural · heated means the trade’s traditional, permanent heat enhancement of a natural stone — it never means a stone is artificial, and we disclose it. Natural · awaiting laboratory confirmation means our gemmologist’s assessment is being confirmed by independent testing right now; results are disclosed in writing before sale. An independent valuation certificate, prepared by a qualified independent valuer, is available with any purchase for insurance purposes. Every stone links to its live Digital Gemstone Passport.

Stone IDStoneSpeciesOriginCaratNatural statusCertification
80062 Blue Australian Sapphire 1.47ct Oval Sapphire Australia 1.47 ct Natural · disclosed in writing before sale Available on request
80067 Blue-Green Australian Sapphire 2.21ct Oval Sapphire Australia 2.21 ct Natural · disclosed in writing before sale Available on request
47040 Royal Blue Ceylon Sapphire 3.24ct Cushion — Unheated Sapphire Ceylon (Sri Lanka) 3.24 ct Natural · unheated Available on request
47013-5R Royal Blue Ceylon Sapphire 3.60ct Round — Unheated Sapphire Ceylon (Sri Lanka) 3.6 ct Natural · unheated Available on request
47018 Royal Blue Ceylon Sapphire 3.43ct Cushion Sapphire Ceylon (Sri Lanka) 3.43 ct Natural · heated, disclosed Available on request
24007 Royal Blue Ceylon Sapphire 3.63ct Cushion Sapphire Ceylon (Sri Lanka) 3.63 ct Natural · heated, disclosed Available on request
16024 Cornflower Blue Ceylon Sapphire 7.57ct Cushion Sapphire Ceylon (Sri Lanka) 7.57 ct Natural — independently verified Available on request
22327 Royal Blue Ceylon Sapphire 2.25ct Cushion Sapphire Ceylon (Sri Lanka) 2.25 ct Natural · heated, disclosed Available on request
1398 Cornflower Blue Ceylon Sapphire 5.71ct Oval Sapphire Ceylon (Sri Lanka) 5.71 ct Natural — independently verified Available on request
47005-15R Royal Blue Ceylon Sapphire 2.93ct Cushion — Unheated Sapphire Ceylon (Sri Lanka) 2.93 ct Natural · unheated Available on request
47005-14R Royal Blue Ceylon Sapphire 3.94ct Cushion — Unheated Sapphire Ceylon (Sri Lanka) 3.94 ct Natural · unheated Available on request
1688 Golden Yellow Australian Sapphire 6.23ct Cushion Sapphire Australia 6.23 ct Natural · heated, disclosed Available on request
12001 Cornflower Blue Ceylon Sapphire 2.44ct Oval Sapphire Ceylon (Sri Lanka) 2.44 ct Natural — independently verified Available on request
12400 Cornflower Blue Ceylon Sapphire 6.00ct Oval Sapphire Ceylon (Sri Lanka) 6.0 ct Natural — independently verified Available on request
12402 Violet Blue Ceylon Sapphire 2.39ct Oval Sapphire Ceylon (Sri Lanka) 2.39 ct Natural — independently verified Available on request
10026 Cornflower Blue Ceylon Sapphire 4.32ct Cushion Sapphire Ceylon (Sri Lanka) 4.32 ct Natural — independently verified Available on request
47011 Royal Blue Ceylon Sapphire 3.24ct Oval — Unheated Sapphire Ceylon (Sri Lanka) 3.24 ct Natural · unheated Available on request
80289 Yellow-Green Australian Sapphire 2.00ct Oval Sapphire Australia 2.0 ct Natural — independently verified Available on request
11318 Deep Blue Australian Sapphire 4.04ct Emerald Cut Sapphire Australia 4.04 ct Natural · heated, disclosed Available on request
80287 Blue-Yellow Parti Australian Sapphire 2.41ct Oval Sapphire Australia 2.41 ct Natural — independently verified Available on request
47013 Royal Blue Ceylon Sapphire 3.44ct Oval Sapphire Ceylon (Sri Lanka) 3.44 ct Natural — independently verified Available on request
80277 Yellow-Blue Parti Australian Sapphire 1.52ct Oval Sapphire Australia 1.52 ct Natural — independently verified Available on request
80279 Green-Yellow Australian Sapphire 2.44ct Oval Sapphire Australia 2.44 ct Natural — independently verified Available on request
80234 Blue-Yellow Parti Australian Sapphire 1.44ct Oval Sapphire Australia 1.44 ct Natural — independently verified Available on request
80215 Green-Yellow Australian Sapphire 1.28ct Oval Sapphire Australia 1.28 ct Natural — independently verified Available on request
80278 Blue-Green Australian Sapphire 2.04ct Oval Sapphire Australia 2.04 ct Natural — independently verified Available on request
80197 Green Australian Sapphire 2.31ct Oval Sapphire Australia 2.31 ct Natural — independently verified Available on request
80211 Green-Yellow Parti Australian Sapphire 2.19ct Cushion Sapphire Australia 2.19 ct Natural — independently verified Available on request
80219 Green Australian Sapphire 2.30ct Cushion Sapphire Australia 2.3 ct Natural — independently verified Available on request
80187 Matched Trio — Australian Sapphires 2.65ct Total, Emerald Cuts Sapphire Australia 2.65 ct Natural · unheated Certified
80196 Green Australian Sapphire 1.52ct Oval — Natural Sapphire Australia 1.52 ct Natural · unheated Available on request
80202 Teal Australian Sapphire 1.96ct Cushion Sapphire Australia 1.96 ct Natural — independently verified Available on request
80181 Green-Yellow Parti Australian Sapphire 1.91ct Oval Sapphire Australia 1.91 ct Natural — independently verified Available on request
12334 Parti Yellow-Blue Australian Sapphire 1.54ct Sapphire Australia 1.54 ct Natural — independently verified Available on request
12330 Blue Australian Sapphire 2.00ct Cushion Sapphire Australia 2.0 ct Natural · heated, disclosed Available on request
RUBY-B0797 Unheated Natural Ruby 1.16ct Octagon — IGLC Certified Ruby Ceylon (Sri Lanka) 1.16 ct Natural · unheated Certified
12338 Matched Pair — Teal Green Australian Sapphires 2.71ct Total Sapphire Australia 2.71 ct Natural — independently verified Available on request
12337 Matched Pair — Blue Australian Sapphires 2.17ct Total Sapphire Australia 2.17 ct Natural — independently verified Available on request
12336 Blue Australian Sapphire 1.58ct Oval Sapphire Australia 1.58 ct Natural — independently verified Available on request
12328 Blue-Green Australian Sapphire 3.20ct Oval Sapphire Australia 3.2 ct Natural — independently verified Available on request
12325 Teal Australian Sapphire 1.85ct Oval Sapphire Australia 1.85 ct Natural — independently verified Available on request
12324 Blue Australian Sapphire 1.31ct Oval Sapphire Australia 1.31 ct Natural — independently verified Available on request
12335 Teal Australian Sapphire 1.27ct Round Sapphire Australia 1.27 ct Natural — independently verified Available on request
12327 Yellowish Parti Australian Sapphire 1.47ct Sapphire Australia 1.47 ct Natural — independently verified Available on request
12331 Teal Australian Sapphire 2.19ct Cushion — Unheated Sapphire Australia 2.19 ct Natural · unheated Available on request
12329 Blue Australian Sapphire 1.97ct Oval Sapphire Australia 1.97 ct Natural — independently verified Available on request
12322 Blue Australian Sapphire 1.25ct Round Sapphire Australia 1.25 ct Natural — independently verified Available on request
12326 Deep Blue Australian Sapphire 1.90ct Emerald Cut Sapphire Australia 1.9 ct Natural — independently verified Available on request
12323 Yellow Australian Sapphire 0.84ct Sapphire Australia 0.84 ct Natural — independently verified Available on request
Ministry_Ruby 1.16 Ruby Unheated (Pigeon Blood) 1.16 cts Ruby — 1.16 ct Natural · unheated Available on request
Ministry_Emerald 16cts Emerald (Natural, Zambian) 16 cts Emerald — 16.0 ct Natural — independently verified Available on request
Ministry_Emerald 7.73 Emerald (Natural Zambian) 7.73 cts Emerald — 7.73 ct Natural — independently verified Available on request
Ministry_Emerald 10.68 Emerald (Natural Zambian) 10.68 cts Emerald — 10.68 ct Natural — independently verified Available on request
202655_CC Ceylon Blue Sapphire Unheated 5.6 cts Sapphire Ceylon (Sri Lanka) 5.6 ct Natural · unheated Available on request
202655 CC2 Ceylon Blue Sapphire Unheated 4.55 cts Sapphire Ceylon (Sri Lanka) 4.55 ct Natural · unheated Available on request
10841 Ceylon Blue Sapphire 5.43 cts Sapphire Ceylon (Sri Lanka) 5.43 ct Natural — independently verified Available on request
47010 Ceylon Blue Sapphire 4.95 cts Sapphire Ceylon (Sri Lanka) 4.95 ct Natural — independently verified Available on request
31007 Ceylon Blue Sapphire 3.63 cts Sapphire Ceylon (Sri Lanka) 3.63 ct Natural — independently verified Available on request
80207 Australian Green Sapphire, 1.23 cts Sapphire Australia 1.23 ct Natural — independently verified Available on request
Australian Opal 1.49cts Solid Australian Solid Opal 1.49 cts Opal Australia 1.49 ct Natural — independently verified Available on request
80205 African Sapphires 3 Pcs Set 3.82 cts Sapphire Africa 3.82 ct Natural · unheated Certified
80274 Australian Sapphire, 1.44 cts Oval Cut Sapphire Australia 1.44 ct Natural — independently verified Available on request
80247 Australian Sapphire Pair 2.7 cts Sapphire Australia 2.7 ct Natural — independently verified Available on request
10910 Australian Sapphire 6.24 cts Sapphire Australia 6.24 ct Natural — independently verified Available on request
80184 Australian Sapphire 2.94 cts Oval Pair Sapphire Australia 2.94 ct Natural — independently verified Available on request
12901 Australian Sapphire 2.17 cts Sapphire Australia 2.17 ct Natural — independently verified Available on request
12225 Australian Sapphire 2.04 cts OV Sapphire Australia 2.04 ct Natural — independently verified Available on request
11085 Australian Sapphire 2.02 cts Sapphire Australia 2.02 ct Natural — independently verified Available on request
80182 Australian Sapphire 2.01 cts Sapphire Australia 2.01 ct Natural — independently verified Available on request
80209 Australian Sapphire 1.97 cts Sapphire Australia 1.97 ct Natural — independently verified Available on request
80188 Australian Sapphire 1.89 cts Oval Sapphire Australia 1.89 ct Natural — independently verified Available on request
80199 Australian Sapphire 1.75 cts Cushion Sapphire Australia 1.75 ct Natural · unheated Available on request
80206 Australian Sapphire 1.71 cts Oval Sapphire Australia 1.71 ct Natural — independently verified Available on request
80220 Australian Sapphire 1.67 cts Sapphire Australia 1.67 ct Natural · unheated Certified
80237 Australian Sapphire 1.59 cts Sapphire Australia 1.59 ct Natural — independently verified Available on request
80190 Australian Sapphire 1.4 cts Cushion Sapphire Australia 1.4 ct Natural — independently verified Available on request
80221 Australian Sapphire 1.32 cts Sapphire Australia 1.32 ct Natural · unheated Certified
80204 Australian Sapphire 1.2 cts (Yellow-Orange) Sapphire Australia 1.2 ct Natural — independently verified Available on request
80233 Australian Sapphire 1.19 cts Sapphire Australia 1.19 ct Natural — independently verified Available on request
12054 Australian Blue Sapphire, 1.63 cts Sapphire Australia 1.63 ct Natural · unheated Available on request
11979 Australian Blue Sapphire 3.74 cts Sapphire Australia 3.74 ct Natural — independently verified Available on request
10976 Australian Blue Sapphire 3.06 cts Sapphire Australia 3.06 ct Natural · unheated Available on request
12149 Australian Blue Sapphire 1.63 cts OV Sapphire Australia 1.63 ct Natural — independently verified Available on request
Australian Opal 1.74 cts (Dbl) Australian Black Opal 1.74 cts Opal Australia 1.74 ct Natural — independently verified Available on request
Black Opal 1.83cts Australian Black Opal (Solid) 1.83 cts Opal Australia 1.83 ct Natural — independently verified Available on request

Machine-readable copy: download the register as CSV · regenerated when laboratory results are confirmed. Questions about any stone? Ask our FGAA gemmologist — or read The Certification Handbook to learn how to read a laboratory report yourself.