Antique & Vintage Gems for Sale in Online Auctions

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1.13ct Natural Australian Teal Faceted Sapphire Loose Gemstone, 26BA: This skillfully faceted sapphire features rich saturated body tone with fine microscopic mineral inclusions scattered evenly across its polished reflective planes within its 6.9x6x3.2mm calibrated dim

2026

1.13ct Natural Australian Teal Faceted Sapphire Loose Gemstone, 26BA

ThousandPlanetSathorn, Bangkok

16.46ct Natural Nigerian Aquamarine Oval Cabochon Loose Gemstone, 52BY: This elegantly polished oval cabochon is natural aquamarine sourced from Nigeria. It features soft tranquil pale blue colour with subtle even tone distribution throughout the translucent crystal. The

2026

16.46ct Natural Nigerian Aquamarine Oval Cabochon Loose Gemstone, 52BY

ThousandPlanetSathorn, Bangkok

6.15ct Natural Mozambique Hot Pink Ruby Loose Gemstone, 75BP: This heart shaped Mozambique ruby cabochon measures 10.2x9.2x5.7mm, showcasing a vivid saturated hot pink body paired with stunning natural hexagonal crystal growth banding that forms a distinct geome

2026

6.15ct Natural Mozambique Hot Pink Ruby Loose Gemstone, 75BP

ThousandPlanetSathorn, Bangkok

94.58ct Natural Peruvian Chrysocolla Polished Slab Rough, 58EK: This partial-polished chrysocolla slab features blended mineral matrix with smooth refined face and unaltered natural rugged edge across its 37x28x10mm elongated form, translucent mineral layers hold

2026

94.58ct Natural Peruvian Chrysocolla Polished Slab Rough, 58EK

ThousandPlanetSathorn, Bangkok

521g Natural Burmese Type A Jadeite Jade Polished Rough Block, 12EZ: This natural Burmese Type A jadeite jade rough block with partial polished surfaces revealing internal mineral characteristics. Dimensions measure 9.5x7cm, sourced from Myanmar, this specimen is ideal

2026

521g Natural Burmese Type A Jadeite Jade Polished Rough Block, 12EZ

ThousandPlanetSathorn, Bangkok

2.74ct Natural Siamese 6-Ray Black Star Sapphire Loose Gemstone, 41BD: This polished star sapphire originates from classic Siamese mining deposits, featuring a deep dark crystalline base with fine native mineral traces trapped within its structure, sized at calibrated 8.

2026

2.74ct Natural Siamese 6-Ray Black Star Sapphire Loose Gemstone, 41BD

ThousandPlanetSathorn, Bangkok

43.71ct Natural Burmese Type A Lavender Jadeite Jade Cabochon Loose Gemstone, 52FJ: This natural Burmese Type A jadeite jade cabochon lot displays soft lavender tone with well polished surfaces. Dimensions measure 13x10x6mm, sourced from Myanmar, these polished cabochons present grea

2026

43.71ct Natural Burmese Type A Lavender Jadeite Jade Cabochon Loose Gemstone, 52FJ

ThousandPlanetSathorn, Bangkok

Emerald Ring 10Kt.: Ladies 10Kt White Gold Emerald Ring. This Ring has 10 round Emeralds Gems. 0.65ctw. Ring size: 7.00.

2026

Emerald Ring 10Kt.

Pacific Auction HouseLos Angeles, CA

Black Onyx / Pearl & Diamond Ring 10Kt.: 10Kt Yellow Gold Black Onyx / Pearl & Diamond. This Charming Ring has Black Onyx Gems with Pearls and 5 Sparkling. Ring Size: 6.00. Total Weight: 2.90 Grams.

2026

Black Onyx / Pearl & Diamond Ring 10Kt.

Pacific Auction HouseLos Angeles, CA

Ruby & Diamond Stud Earring 10Kt.: Ladies 10Kt Yellow Gold Ruby & Diamond Stud Earring. This Earring's Has Beautiful Flower Desing With Sparkling Diamonds & Gorgeous Ruby Gem In The Center. Diamond Weight: 0.25ctw.

2026

Ruby & Diamond Stud Earring 10Kt.

Pacific Auction HouseLos Angeles, CA

Loose Diamond - Round 2.49ct E VS1: Loose Diamond - Round 2.49ct E VS1 Source: This is a real non-mined Diamond that has been grown in a lab Shape: Round Carats: 2.49 Color: E Clarity: VS1 Certification: IGI Condition: Pre-Owned PLEASE

2026

Loose Diamond - Round 2.49ct E VS1

BidhausNew York, NY

Loose Diamond - OCTAGONAL 1.07ct Fancy Intense Pink VVS2: Loose Diamond - OCTAGONAL 1.07ct Fancy Intense Pink VVS2 Source: This is a real non-mined Diamond that has been grown in a lab Shape: OCTAGONAL Carats: 1.07 Color: Fancy Intense Pink Certification: IG

2026

Loose Diamond - OCTAGONAL 1.07ct Fancy Intense Pink VVS2

BidhausNew York, NY

Tiger's Eye Large Cabochon Cross 3" Maltese Vintage Lot # JM 239: Tiger's Eye Large Cabochon Cross 3" Maltese Vintage

2026

Tiger's Eye Large Cabochon Cross 3" Maltese Vintage Lot # JM 239

GarageHudson, Quebec

Loose Diamond - Round 2.42ct F VVS2: Loose Diamond - Round 2.42ct F VVS2 Source: This is a real non-mined Diamond that has been grown in a lab Shape: Round Carats: 2.42 Color: F Clarity: VVS2 Certification: IGI Condition: Pre-Owned PLEAS

2026

Loose Diamond - Round 2.42ct F VVS2

BidhausNew York, NY

Green Fluorite Crystal Cluster: Green Fluorite Crystal Cluster. Size: 4.5'' x 12'' x 9.5'' (11 x 30 x 24 cm). Approx Weight: 4300 g.

2026

Green Fluorite Crystal Cluster

Material CulturePhiladelphia, PA

16 SILVER & GEM SET LADIES RINGS: 16 SILVER & GEM SET LADIES RINGS. Comprising a good variety of sixteen .925 silver-mounted ladies' rings with semi-precious or precious gemstones as shown, of various sizes and configurations. A good

2026

16 SILVER & GEM SET LADIES RINGS

Jackson's International AuctioneersCedar Falls, IA

16 SILVER GEM SET LADIES' RINGS: 16 SILVER GEM SET LADIES' RINGS. Comprising a good variety of sixteen gem or semi-precious stone sterling silver-mounted ladies' rings of various configurations as shown, most marked .925, various siz

2026

16 SILVER GEM SET LADIES' RINGS

Jackson's International AuctioneersCedar Falls, IA

FABERGE STYLE SILVER & JADE BELL PUSH: FABERGE STYLE SILVER & JADE BELL PUSH. Comprising a silver-gilt, jade, enamel and gem set bell push in the style of Faberge. The silver gilt square base on bun feet with leaf tip banding holding a pol

2026

FABERGE STYLE SILVER & JADE BELL PUSH

Jackson's International AuctioneersCedar Falls, IA

Ideal Loose Diamond - ROUND 1.51ct D VVS2: Ideal Loose Diamond - ROUND 1.51ct D VVS2 Source: This is a real non-mined Diamond that has been grown in a lab Shape: ROUND Carats: 1.51 Color: D Clarity: VVS2 Certification: IGI Video:

2026

Ideal Loose Diamond - ROUND 1.51ct D VVS2

Mynt AuctionsNew York, NY

29.35 Ct Natural Buffalo Jasper Quartz Oval Cab: weight - 29.35 Ct / Dimensions - 30.00 x 22.30 x 5.00 mm / Shape & Cut - Excellent Oval Cab / Origin - Brazil / Comments - None

2026

29.35 Ct Natural Buffalo Jasper Quartz Oval Cab

Gems AuctionBangkok, TH

8.12 Ct Natural Blue Turquoise Oval cab: Weight - 8.12 Ct / Size - 15.60 x 11.70 x 6.40 mm / Good Color / Oval Cab - Ready for Jewellery Setting / Origin - Egypt / Treatment - None

2026

8.12 Ct Natural Blue Turquoise Oval cab

Gems AuctionBangkok, TH

1.68 Ct Natural Pinkish Red Ruby Octagon Cut: Weight - 1.68 Ct / Dimensions - 8.10 x 6.00 x 2.60 mm / Shape - Octagon Cut / Color - Red / Clarity - Opaque / Origin - Mozambique / Comments - Color Enhanced by Glass Filling

2026

1.68 Ct Natural Pinkish Red Ruby Octagon Cut

Gems AuctionBangkok, TH

4.85 Ct Natural Purple Amethyst Pear Cut: Weight - 4.85 Ct / Dimensions - 15.20 x 10.10 x 6.50 mm / Shape - Pear Cut / Color - Purple / Clarity - VVS / Origin -Brazil / Treatment - Heated

2026

4.85 Ct Natural Purple Amethyst Pear Cut

Gems AuctionBangkok, TH

3.26 Ct Natural Purple Amethyst Octagon Cut: Weight - 3.26 Ct / Dimensions - 10.00 x 7.90 x 5.60 mm / Shape - Octagon Cut / Color - Purple / Clarity - VVS / Origin -Brazil / Treatment - Heated

2026

3.26 Ct Natural Purple Amethyst Octagon Cut

Gems AuctionBangkok, TH

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