Opal Gems

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11.95 Carat Natural Brazilian Blue-Green Tourmaline Round Cut EGL Certified: Copper-Bearing Brazilian Paraíba Tourmaline. An exceptional and highly valuable gemstone. Stones of this size and color belong to the prestigious Paraíba variety, celebrated worldwide for its vibran

2026

11.95 Carat Natural Brazilian Blue-Green Tourmaline Round Cut EGL Certified

California GemstonesOceanside, CA

4.70 Carat ---- Natural Ceylon Pink Sapphire ---- Brilliant Oval Cut ---- AGL Certified: a highly sought-after, premium gemstone. Ceylon sapphire are globally renowned for their clarity, high brilliance, and luminous pink hues, making this size an exceptional centerpiece for fine jewelry.

2026

4.70 Carat ---- Natural Ceylon Pink Sapphire ---- Brilliant Oval Cut ---- AGL Certified

California GemstonesOceanside, CA

3.70 Carat -- Natural Topaz-- Asscher Cut--- AGL Certified: A striking, substantial gemstone. At this weight, it creates a bold, architectural centerpiece. Because topaz is highly dense, a 3.70 carat stone will look slightly more compact than a diamond of the

2026

3.70 Carat -- Natural Topaz-- Asscher Cut--- AGL Certified

California GemstonesOceanside, CA

7.40 Carat ---- Natural Mogok Pink Ruby--- Brilliant Oval Cut ---AGL Certified: Known globally as the world's premier ruby locality, Mogok (Myanmar) stones feature unique trace elements that grant them a brilliant, luminescent color. Oval cuts are expertly chosen to maximize this

2026

7.40 Carat ---- Natural Mogok Pink Ruby--- Brilliant Oval Cut ---AGL Certified

California GemstonesOceanside, CA

3.20 Carat ---- Natural Mozambique Blue Green Tourmaline--- Round Cut ---AGL Certified: Sourced from Mozambique, a region famous for producing world-class tourmalines with exceptional clarity and vibrant saturation. Round brilliant cut, which maximize brilliance, fire, and light reflecti

2026

3.20 Carat ---- Natural Mozambique Blue Green Tourmaline--- Round Cut ---AGL Certified

California GemstonesOceanside, CA

5.00 Carat ---- Natural Brazilian indicolite Blue Tourmaline ---Brilliant Oval Cut ---AGL Certified: a highly sought-after, rare collector's gemstone. Known for its ocean-like hues and vitreous luster, this combination of size, origin, and cut represents a valuable and visually striking gem for custo

2026

5.00 Carat ---- Natural Brazilian indicolite Blue Tourmaline ---Brilliant Oval Cut ---AGL Certified

California GemstonesOceanside, CA

Lot Of 14K Gold Gem Set Jewelry: Lot Of 14K Gold Gem Set Jewelry, 14.8g. Pieces marked or test as 14K. Blue topaz pendant approximately 22.2L x 9.0W mm (including bale). Green tourmaline post earrings approximately 3.3mm. ALL CREDIT

2026

Lot Of 14K Gold Gem Set Jewelry

Clark's Auction CompanyScotts Valley, CA

33.93ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 42FC: This natural corundum rough is an unheated purplish blue sapphire sourced from Sri Lankan alluvial gem deposits, featuring an irregular natural native form with residual pale yellow-brown mineral matr

2026

33.93ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 42FC

ThousandPlanetSathorn, Bangkok

57.16ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 35FC: This natural corundum rough is an unheated purplish blue sapphire sourced from Sri Lankan alluvial gem deposits, featuring an irregular natural native form with residual pale yellow-brown mineral matr

2026

57.16ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 35FC

ThousandPlanetSathorn, Bangkok

113ct Natural Type A Burmese Jadeite Jade Polished Sliced Rough, 86AZ: This specimen is a sliced rough block of natural Type A Burmese jadeite jade. The interior displays natural colour zoning with visible mineral veining and crystalline patterns typical of unprocessed j

2026

113ct Natural Type A Burmese Jadeite Jade Polished Sliced Rough, 86AZ

ThousandPlanetSathorn, Bangkok

1.80ct Natural Australian Parti Sapphire Faceted Loose Gemstone, 67BA: This expertly faceted Australian parti sapphire features blended multi-tonal green-yellow internal saturation with tiny scattered microscopic mineral specks suspended within its transparent crystallin

2026

1.80ct Natural Australian Parti Sapphire Faceted Loose Gemstone, 67BA

ThousandPlanetSathorn, Bangkok

137ct Natural Tanzanian Ruby Zoisite Raw Rough Specimen Mineral Stone, 100FB: This unpolished mineral rough is natural ruby zoisite sourced from Tanzania, exhibiting distinct banded mineral segregation of vibrant green zoisite, magenta ruby crystals, and dark hornblende inclusi

2026

137ct Natural Tanzanian Ruby Zoisite Raw Rough Specimen Mineral Stone, 100FB

ThousandPlanetSathorn, Bangkok

28.83ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 84FC: This natural corundum rough is an unheated purplish blue sapphire sourced from Sri Lankan alluvial gem deposits, featuring an irregular natural native form with residual pale yellow-brown mineral matr

2026

28.83ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 84FC

ThousandPlanetSathorn, Bangkok

12.40ct Natural Mozambique Hot Pink Ruby Loose Gemstone, 79BP: This heart shaped Mozambique ruby cabochon measures 13.7x12.1x7.2mm, showcasing a vivid saturated hot pink body paired with stunning natural hexagonal crystal growth banding that forms a distinct geom

2026

12.40ct Natural Mozambique Hot Pink Ruby Loose Gemstone, 79BP

ThousandPlanetSathorn, Bangkok

9.37ct Natural Mozambique Hot Pink Ruby Loose Gemstone, 70BP: This heart shaped Mozambique ruby cabochon measures 12.9x10.8x6.3mm, showcasing a vivid saturated hot pink body paired with stunning natural hexagonal crystal growth banding that forms a distinct geom

2026

9.37ct Natural Mozambique Hot Pink Ruby Loose Gemstone, 70BP

ThousandPlanetSathorn, Bangkok

Natural Chinese Hetian Mutton Fat Nephrite Raw Seed Pebble Jade Stone, 48EC: This solid unprocessed raw material is authentic natural Chinese Hetian mutton fat nephrite seed pebble jade, showcasing a thick creamy milky white mutton fat base tone with distinct intact natural or

2026

Natural Chinese Hetian Mutton Fat Nephrite Raw Seed Pebble Jade Stone, 48EC

ThousandPlanetSathorn, Bangkok

8.34ct Natural Mozambique Hot Pink Ruby Loose Gemstone, 65BP: This heart shaped Mozambique ruby cabochon measures 11.3x10.4x6.3mm, showcasing a vivid saturated hot pink body paired with stunning natural hexagonal crystal growth banding that forms a distinct geom

2026

8.34ct Natural Mozambique Hot Pink Ruby Loose Gemstone, 65BP

ThousandPlanetSathorn, Bangkok

$3.55ct Natural Mexican Lime Green Faceted Sphene Loose Gemstone, 53BA: This precisely faceted sphene exhibits vivid translucent lime green body tone, featuring fine natural mineral veils and tiny scattered crystalline micro-inclusions trapped within its high-refractive c$

2026

3.55ct Natural Mexican Lime Green Faceted Sphene Loose Gemstone, 53BA

ThousandPlanetSathorn, Bangkok

27.58ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 78FC: This natural corundum rough is an unheated purplish blue sapphire sourced from Sri Lankan alluvial gem deposits, featuring an irregular natural native form with residual pale yellow-brown mineral matr

2026

27.58ct Natural Unheated Sri Lankan Purplish Blue Sapphire Rough, 78FC

ThousandPlanetSathorn, Bangkok

0.66ct Natural Fancy Faceted Diamond Bead Loose Gemstone, 92BE: This fully polished natural fancy diamond bead features warm pale yellowish crystalline body tone with abundant native mineral inclusions captured within its structure, measured at calibrated dimensio

2026

0.66ct Natural Fancy Faceted Diamond Bead Loose Gemstone, 92BE

ThousandPlanetSathorn, Bangkok

34.67ct Natural Tanzanian Tanzanite Cushion Faceted Cabochon Loose Gemstone, 62BZ: This cushion-shaped faceted cabochon is natural tanzanite, originating from Tanzania, the sole global source of this exceptional gem variety. The stone displays rich deep violet-blue colour throughout

2026

34.67ct Natural Tanzanian Tanzanite Cushion Faceted Cabochon Loose Gemstone, 62BZ

ThousandPlanetSathorn, Bangkok

3.90cts Natural Watermelon Tourmaline - Bi-Colour Faceted Cut , 898E: Ksmith Heritage Auctioneers Subject: Natural Tourmaline Origin: Africa Carat Weight: 3.90 cts Dimension: 9.4x8.9x5.6 mm Type: Faceted, Polished

2026

3.90cts Natural Watermelon Tourmaline - Bi-Colour Faceted Cut , 898E

Ksmith Heritage AuctioneersJelutong, Penang

*6.38Ct Natural Tourmaline Set - Bi-Colour Faceted Cut , 383C: Ksmith Heritage Auctioneers Subject: Natural Tourmaline Carat Weight: 6.38 Ct Dimension: 7.2x5.7x4 mm Type: Faceted, Polished

2026

*6.38Ct Natural Tourmaline Set - Bi-Colour Faceted Cut , 383C

Ksmith Heritage AuctioneersJelutong, Penang

Smokey Quartz Gem Stones (5): Smokey Quartz Marquee. 4.38 cts in the 5 pieces

2026

Smokey Quartz Gem Stones (5)

Mid-Hudson Auction GalleriesNew Windsor, NY

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24

Gems Auctions

GIA Certified 8.63ct Natural Emerald diamonds ring 18kt

Diamond Studs GIA Certified 2.07ct Earrings 14kt

14kt 10 Charm Bracelet Fairy Horn Irish Lock Cross Jade Mary Slipper Heart

Gems & Glamour: Fine Jewelry & Stones Auction

Ends from:

New York, NY, US

SHARK TEETH IN MATRIX ROCK STONE LAPIDARY SPECIMEN

CUT COINS COLLECTIBLES

AQUAMARINE ROCK STONE LAPIDARY SPECIMEN

CRYSTAL CANYON NATURAL HISTORY ROCKS GEMS B9

Col. Christie Hatman Auctioneers

Starts on:

Thayer, MO, US

2 days Left

Louis Vuitton Very Chain Bag Monogram Leather

MINT Rolex DateJust Oyster Two Tone Yellow Gold Steel Black Tuxedo 36mm 116233

2004 Rolex Date 15210 34mm White Arabic Dial Engine Turned Bezel Steel Box Paper

July Luxury Diamonds & Gems!!

Activity Auctions

Ends from:

Dover, DE, US

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