Opal Gems

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12.03 Carats Natural Sleeping Beauty Turquoise Oval Cabochon Parcel - Natural Arizona Stones, 53XP: This curated parcel of eight oval cabochon Sleeping Beauty turquoise gems showcases a vivid, uniform sky-blue hue, with subtle natural matrix inclusions that highlight their authentic, unaltered origi

2026

12.03 Carats Natural Sleeping Beauty Turquoise Oval Cabochon Parcel - Natural Arizona Stones, 53XP

ThousandPlanetHunghom, Kowloon

Three Gem-Encrusted Bug Brooches in Gold Tone Settings: Three gold-tone bug-shaped brooches. Includes a spider brooch featuring a blue cabochon body with rhinestone accents, backed by a locking pin clasp marked ‘Ciner’; a fly brooch with a turquoise ca

2026

Three Gem-Encrusted Bug Brooches in Gold Tone Settings

Block Auction HouseFerndale, MI

Tanzanite 1.08 tcw Pear Cut 5 gems Individually IGI certified: featuring individual International Gemological Institute (IGI) certification for each stone. Tanzanite is a trichroic mineral (zoisite) mined exclusively in Tanzania, known for its intense violetish-b

2026

Tanzanite 1.08 tcw Pear Cut 5 gems Individually IGI certified

California GemstonesSan Diego, CA

Aquamarine Lot 1.6 tcw Round Cut 40 gems GIR certified NO RESERVE: aquamarine can be valuable, especially high-quality, deeply colored, but it's generally considered semi-precious and more affordable than top-tier gems like diamonds, though rare blue varieties from B

2026

Aquamarine Lot 1.6 tcw Round Cut 40 gems GIR certified NO RESERVE

California GemstonesSan Diego, CA

Natural Blue Topaz 1.33ct Oval Cut from Brazil IGI Certification No Reserve: a faceted, oval-cut gemstone originating from Brazil. Features the signature deep, dark intense grayish-blue color. Renowned for being "eye-clean" (IF-VVS), this durable gem offers high brilliant-cut

2026

Natural Blue Topaz 1.33ct Oval Cut from Brazil IGI Certification No Reserve

California GemstonesSan Diego, CA

Natural Padparadscha Sapphire 6.10ct Round Cut from Ceylon: This natural Padparadscha Sapphire is exceptional! From Ceylon gemstone featuring a distinct pink-orange color mix resembling a lotus blossom. Cut to display high brilliance, this round cut gem is hig

2026

Natural Padparadscha Sapphire 6.10ct Round Cut from Ceylon

California GemstonesSan Diego, CA

Tanzanite 10pcs 7.5ct tcw Round Cut from Tanzania No reserve GGI Certified: eaturing a brilliant round cut. Sourced exclusively from the Merelani Hills near Arusha, Tanzania, these gems exhibit a rich violet-blue to deep blue hue, known for their exceptional rarity, trichrois

2026

Tanzanite 10pcs 7.5ct tcw Round Cut from Tanzania No reserve GGI Certified

California GemstonesSan Diego, CA

6.02ct Ceylon Green Sapphire Round Cut No Reserve GIE Certified: Features a vivid, rich green color and high transparency, originating from Sri Lanka. This rare, untreated, gem is characterized by excellent polish, high clarity, and a strong, vibrant color saturati

2026

6.02ct Ceylon Green Sapphire Round Cut No Reserve GIE Certified

California GemstonesSan Diego, CA

Tourmaline 8.46ct Round Cut from Brazil No reserve GIE Certified Georgeous Color: an exceptionally rare, high-value gem, typically showcasing intense neon blue or green hues due to copper content. As a large, high-carat stone, it is likely to be highly sought after, with premium ex

2026

Tourmaline 8.46ct Round Cut from Brazil No reserve GIE Certified Georgeous Color

California GemstonesSan Diego, CA

PATEK PHILIPPE, 18K GOLD & DIAMOND WATCH: This lot features an incredible 18k gold and diamond watch by Patek Philippe. Watch reference 3268/1, circa 1960 and accompanied with an appraisal from Pacific Gem Lab. This watch has a total weight o

2026

PATEK PHILIPPE, 18K GOLD & DIAMOND WATCH

Salem Auction HouseSalem, OR

14k White Gold Bracelet w/ Diamonds & Various Gems: 7" long bracelet made with 14k euros. Decorated with approximately 288 melee diamonds and 24 colored gems. Lot 14 cannot confirm the specific types of gems used, but a simple electronic test suggested

2026

14k White Gold Bracelet w/ Diamonds & Various Gems

Lot 14 AuctionsNiles, IL

1916 - 1944 Silver World Coins (*CH to GEM BU), 6: Six (6) Finland and Philippines silver coins with estimated ASW of 0.4 troy ounce. *Per consigner, fully original in CH to GEM BU condition as follows: ---1916-s Finland silver 50 pennia (ASW 0.0615 o

2026

1916 - 1944 Silver World Coins (*CH to GEM BU), 6

Lot 14 AuctionsNiles, IL

U.S. Marine 18K Gold HGE Ring with Red Stone/Gem: U.S. Marine 18K Gold HGE Ring with Red Stone/Gem

2026

U.S. Marine 18K Gold HGE Ring with Red Stone/Gem

CATAMOUNT AUCTION CO LLCShelburne Falls, MA

1879-S Morgan Silver Dollar GEM BU: 1879-S Morgan Silver Dollar GEM BU

2026

1879-S Morgan Silver Dollar GEM BU

Gold Standard AuctionsDallas, TX

Antique Gem-Set 900 Silver Lizard Form Brooch: Antique Gem-Set 900 Silver Lizard Form Brooch, with clear and green colored rhinestones, marked "900" to underside. Weight: 0.30 ozt.; 2.75" L x 1.75" W. Provenance: From a New York City Collection. K

2026

Antique Gem-Set 900 Silver Lizard Form Brooch

Auctions at ShowplaceAstoria, NY

5.27 Ct Natural Pinkish Red Ruby Lovely Heart Cut: Weight - 5.27 Ct / Size - 11.00 x 11.00 x 4.80 mm / Shape - Heart Cut / Color - Pinkish Red / Clarity - SI / Origin - Mozambique / Treatment - Color Enhanced by Glass Filling

2026

5.27 Ct Natural Pinkish Red Ruby Lovely Heart Cut

Gems AuctionBangkok, TH

2.26 Ct Natural Black Flashing Fire Opal Pear Cab: Weight - 2.26 Ct / Size - 14.50 x 7.10 x 4.90 mm / Shape - Pear Cab / Color - Black / Transparency - Translucent / Origin - Ethiopia / Treatment - Color Smoked

2026

2.26 Ct Natural Black Flashing Fire Opal Pear Cab

Gems AuctionBangkok, TH

1.85 Ct Natural Black Flashing Fire Opal Oval Cut: Weight - 1.85 Ct / Size - 10.90 x 7.70 x 5.40 mm / Shape - Oval Cut / Color - Black / Transparency - Translucent / Origin - Ethiopia / Treatment - Color Smoked

2026

1.85 Ct Natural Black Flashing Fire Opal Oval Cut

Gems AuctionBangkok, TH

4.43 Ct Natural Honey Quartz Square Cut: Weight - 4.43 Ct / Dimensions - 10.00 x 10.00 x 6.40 mm / Shape - Square Cut / Color - Yellow / Clarity - VVS / Origin -Brazil / Treatment - Heated

2026

4.43 Ct Natural Honey Quartz Square Cut

Gems AuctionBangkok, TH

13.69 Ct Natural Rose Quartz & Chrysoprase Beads: Weight - 13.69 Ct / Size - 5.60 - 6.50 mm / 19 Pc's / Shape - Excellent Round & Cushion Cut Beads / Clarity - Transparent / Origin - Brazil / Treatment - None

2026

13.69 Ct Natural Rose Quartz & Chrysoprase Beads

Gems AuctionBangkok, TH

2.45 Ct Natural Green Amethyst Fancy Cut: Weight - 2.45 Ct / Dimensions - 11.10 x 9.80 x 5.00 mm / Shape - Fancy Cut / Color - Green / Clarity - VVS / Origin -Brazil / Treatment - Heated

2026

2.45 Ct Natural Green Amethyst Fancy Cut

Gems AuctionBangkok, TH

5.04 Ct Natural Green Tsavorite Round Cut Beads: Weight - 5.04 Ct / Dimensions - 2.50 - 2.70 mm / 53 Pc's / Top Quality Luster / Excellent Round Cut Beads / Origin - Brazil / Comments - None

2026

5.04 Ct Natural Green Tsavorite Round Cut Beads

Gems AuctionBangkok, TH

4.73 Ct Natural Green Amethyst Round Cut: Weight - 4.73 Ct / Dimensions - 11.10 x 11.10 x 7.30 mm / Shape - Round Cut / Color - Green / Clarity - VVS / Origin -Brazil / Treatment - Heated

2026

4.73 Ct Natural Green Amethyst Round Cut

Gems AuctionBangkok, TH

3.00 Ct Natural Multicolor Welo Opal Top Fire Round Cab Set: Weight - 3.00 Ct / Dimensions - 6.10 x 3.80 - 6.10 x 4.30 mm / 4 Pc's / Shape - Round Cab / Color - Multicolor / Clarity - Translucent / Origin - Ethiopia / Treatment - None

2026

3.00 Ct Natural Multicolor Welo Opal Top Fire Round Cab Set

Gems AuctionBangkok, TH

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Gems Auctions

Regal White Horse and Golden Carriage Trinket Box

Emerald Cut Blue Iolite Sterling Silver Ring

Set of 6 Murano Murrine Goto Glasses

1200+ Gallery, Gems & Collectibles

Weatherham Estate Treasures

Starts on:

Cobourg, ON, CA

A Pair of Stunning Art Deco style 18K White Gold Emerald Ruby and Diamond Hanging Earrings

An Art Deco Platinum Diamond and Onyx Ring

An Impressive Art Deco Platinum Diamond and Sapphire Bracelet

Summer Sparkle - Jewelry Gems and Timepieces

Alma Auctioneers

Starts on:

Tel Aviv, Tel Aviv, IL

3 days Left

18K White Gold Kashmir Sapphire Ring with Diamonds

18K White Gold Paraiba ring With Diamonds

18K Gold-Plated 925 Silver Chain with amethyst, topaz and lemon quartz pear shape

Live28

Nile Gems | Fine Jewelry & Gemstones Auction

Nile Jewels Co Ltd

Started:

Bangkok, Krung Thep, TH

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