Diamond

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Two antique diamond and gold rings: Two antique diamond and gold rings Featuring one 14k gold ring of navette-style, set with 21 old mine-cut diamonds, together with one 18k gold ring of bypass design, set with seven single-cut diamonds

2026

Two antique diamond and gold rings

Clars AuctionsOakland, CA

A diamond and 14k white gold ring: A diamond and 14k white gold ring Set with one old mine one transitional-cut, and one paste stone diamonds; estimated total diamond weight: 0.90 carat; size 5 1/4; 3.30 grams

2026

A diamond and 14k white gold ring

Clars AuctionsOakland, CA

A diamond and 18k white gold brooch: A diamond and 18k white gold brooch Of wreath design, set with two collet-set European-cut diamonds weighing approximately 0.65 and 0.50 carat, further set with 47 European and old single-cut diamonds

2026

A diamond and 18k white gold brooch

Clars AuctionsOakland, CA

A diamond and 14k bi-color gold ring: A diamond and 14k bi-color gold ring Of vintage design, set with one old European-cut diamond; size 11; 7.60 grams

2026

A diamond and 14k bi-color gold ring

Clars AuctionsOakland, CA

Three antique gold lavalier pendants: Three antique gold lavalier pendants one 14k gold set with a European-cut diamond and river pearl, one 10k gold with two old single-cut diamonds, and one 10k green and yellow gold with red glass; leng

2026

Three antique gold lavalier pendants

Clars AuctionsOakland, CA

A collection of gem-set stickpins: A collection of gem-set stickpins comprising 20 stickpins variously set with stones including seed pearls, cultured pearls, river pearls, mother-of-pearl, diamonds, opal, lapis, ruby, and agate, with

2026

A collection of gem-set stickpins

Clars AuctionsOakland, CA

Two antique turquoise and gold rings: Two antique turquoise and gold rings Comprising one 14k gold ring set with six round shaped turquoise cabochons and one rose-cut diamond, together with one 9k gold ring set with an oval shaped turquoi

2026

Two antique turquoise and gold rings

Clars AuctionsOakland, CA

Two antique turquoise and gold rings: Two antique turquoise and gold rings One 14k gold ring designed with an oval shaped turquoise cabochon measuring 7.05 x 4.55 mm framed by 12 rose-cut diamonds, together with one 10k gold ring set with

2026

Two antique turquoise and gold rings

Clars AuctionsOakland, CA

Art Deco Diamond, Platinum Bracelet: Art Deco Diamond, Platinum Bracelet. Featuring seven marquise-cut diamonds weighing a total of approximately 0.85 cttw., accented by eighty-four old round-cut diamonds weighing a total of approximatel

2026

Art Deco Diamond, Platinum Bracelet

Michaan's AuctionsAlameda, CA

Coastal Hawaiian Seascape with Diamond Head: Original mixed-media or textured painting depicting a vibrant Hawaiian coastal scene with rolling turquoise waves, a windswept palm tree, and the distinctive silhouette of Diamond Head in the distance

2026

Coastal Hawaiian Seascape with Diamond Head

Coral Gables AuctionCoral Gables, FL

0.32 Ct. 3.3 Mm. Pair Round Natural Black Loose Diamond: Product ID: 802101986 Product Name: Natural Enhanced Diamond Weight: 0.32 CT. Size: 3.3 x 3.3 x 2.2 MM. Shape: Round Brilliant Cut Color: Black Clarity:Opaque Luster: Scintillating Gems Origin: Belgiu

2026

0.32 Ct. 3.3 Mm. Pair Round Natural Black Loose Diamond

Treasure of Gems & JewelryLake Charles, LA

Natural Yellow Lemon Quartz Gemstones 4.78 Ct. Round Diamond Cut 11.2 Mm.: Product ID: 805530185 Product Name: Natural Quartz Weight: 4.78 CT. Size: 11.2 x 11.2 x 7.9 MM. Shape: Round Diamond Cut Color: Yellow Lemon Clarity:VSI Luster: Good Gems Origin: Brazil Treatment: Unh

2026

Natural Yellow Lemon Quartz Gemstones 4.78 Ct. Round Diamond Cut 11.2 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Yellow Lemon Quartz Gemstones 4.55 Ct. Round Diamond Cut 11.1 Mm.: Product ID: 805530144 Product Name: Natural Quartz Weight: 4.55 CT. Size: 11.1 x 11.1 x 7.7 MM. Shape: Round Diamond Cut Color: Yellow Lemon Clarity:VSI Luster: Good Gems Origin: Brazil Treatment: Unh

2026

Natural Yellow Lemon Quartz Gemstones 4.55 Ct. Round Diamond Cut 11.1 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Blue Sapphire Gemstones 0.68 Ct. 10 Pcs. Round Diamond Cut 2.4 Mm.: Product ID: 806162624 Product Name: Natural Blue Sapphire Weight: 0.68 CT. Size: 2.4 x 2.4 x 1.6 MM. Shape: Round Diamond Cut Color: Blue Clarity:VVS Luster: Good Gems Origin: Madagascar Treatment: He

2026

Natural Blue Sapphire Gemstones 0.68 Ct. 10 Pcs. Round Diamond Cut 2.4 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Blue Zircon Gemstones 0.97 Ct. 2 Pcs. Round Diamond Cut 4.5 Mm.: Product ID: 807743261 Product Name: Natural Gemstones Weight: 0.97 CT. Size: 4.5 x 4.5 x 3 MM. Shape: Round Diamond Cut Color: Blue Clarity:SI1 Luster: Good Gems Origin: Cambodia Treatment: Heated Cry

2026

Natural Blue Zircon Gemstones 0.97 Ct. 2 Pcs. Round Diamond Cut 4.5 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Blue Loose Diamond 0.13 Ct. 2 Pcs. Round Brilliant Cut 2.6 Mm.: Product ID: 802103222 Product Name: Natural Enhanced Diamond Weight: 0.13 CT. Size: 2.6 x 2.6 x 1.6 MM. Shape: Round Brilliant Cut Color: Blue Clarity:VSI - SI1 Luster: Scintillating Gems Origin: Belg

2026

Natural Blue Loose Diamond 0.13 Ct. 2 Pcs. Round Brilliant Cut 2.6 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Yellow Loose Diamond 0.12 Ct. Square Princess Cut 2.8 x 2.7 Mm.: Product ID: 802104530 Product Name: Natural Enhanced Diamond Weight: 0.12 CT. Size: 2.8 x 2.7 x 2 MM. Shape: Square Princess Cut Color: Yellow Clarity:SI1 Luster: Scintillating Gems Origin: Belgium Tr

2026

Natural Yellow Loose Diamond 0.12 Ct. Square Princess Cut 2.8 x 2.7 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Yellow Loose Diamond 0.13 Ct. Square Princess Cut 2.9 x 2.9 Mm.: Product ID: 802104046 Product Name: Natural Enhanced Diamond Weight: 0.13 CT. Size: 2.9 x 2.9 x 1.9 MM. Shape: Square Princess Cut Color: Yellow Clarity:SI1 Luster: Scintillating Gems Origin: Belgium

2026

Natural Yellow Loose Diamond 0.13 Ct. Square Princess Cut 2.9 x 2.9 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Yellow Loose Diamond 0.11 Ct. Baguette Princess Cut 2.7 x 2.6 Mm.: Product ID: 802103441 Product Name: Natural Enhanced Diamond Weight: 0.11 CT. Size: 2.7 x 2.6 x 1.8 MM. Shape: Baguette Princess Cut Color: Yellow Clarity:SI1 Luster: Scintillating Gems Origin: Belgiu

2026

Natural Yellow Loose Diamond 0.11 Ct. Baguette Princess Cut 2.7 x 2.6 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Blue Sapphire Gemstones 2.00 Ct. 20 Pcs. Round Diamond Cut 2.7 Mm.: Product ID: 806012159 Product Name: Natural Blue Sapphire Weight: 2.00 CT. Size: 2.7 x 2.7 x 1.8 MM. Shape: Round Diamond Cut Color: Blue Clarity:VSI Luster: Good Gems Origin: Madagascar Treatment: He

2026

Natural Blue Sapphire Gemstones 2.00 Ct. 20 Pcs. Round Diamond Cut 2.7 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Yellow Songea Sapphire Gemstones 0.44 Ct. 2 Pcs. Round Diamond Cut 3.5 Mm.: Product ID: 806130502 Product Name: Natural Blue Sapphire Weight: 0.44 CT. Size: 3.5 x 3.5 x 2.5 MM. Shape: Round Diamond Cut Color: Yellow Clarity:SI1 Luster: Good Gems Origin: Tanzania Treatment: He

2026

Natural Yellow Songea Sapphire Gemstones 0.44 Ct. 2 Pcs. Round Diamond Cut 3.5 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Yellow Lemon Quartz Gemstones 3.80 Ct. 2 Pcs. Round Diamond Cut 8.2 Mm.: Product ID: 805530156 Product Name: Natural Quartz Weight: 3.80 CT. Size: 8.2 x 8.2 x 6 MM. Shape: Round Diamond Cut Color: Yellow Lemon Clarity:VSI Luster: Good Gems Origin: Brazil Treatment: Unheate

2026

Natural Yellow Lemon Quartz Gemstones 3.80 Ct. 2 Pcs. Round Diamond Cut 8.2 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Orange Songea Sapphire Gemstones 0.71 Ct 10 Pcs. Round Diamond Cut 2.5 Mm.: Product ID: 806162435 Product Name: Natural Orange Sapphire Weight: 0.71 CT. Size: 2.5 x 2.5 x 1.4 MM. Shape: Round Diamond Cut Color: Orange Clarity:VSI Luster: Good Gems Origin: Tanzania Treatment:

2026

Natural Orange Songea Sapphire Gemstones 0.71 Ct 10 Pcs. Round Diamond Cut 2.5 Mm.

Treasure of Gems & JewelryLake Charles, LA

Natural Green Songea Sapphire Gemstones 0.68 Ct. 10 Pcs. Round Diamond Cut 2.6 Mm.: Product ID: 806130495 Product Name: Natural Blue Sapphire Weight: 0.68 CT. Size: 2.6 x 2.6 x 1.8 MM. Shape: Round Diamond Cut Color: Green Clarity:SI1 Luster: Good Gems Origin: Tanzania Treatment: Hea

2026

Natural Green Songea Sapphire Gemstones 0.68 Ct. 10 Pcs. Round Diamond Cut 2.6 Mm.

Treasure of Gems & JewelryLake Charles, LA

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Diamond Auctions

HUGE & RARE 4 Ct Treated Certified Off White Diamond Solitaire Stud, 925 Silver

Rare 12 Ct Certified HPHT - Treated Off White Diamond Solitaires Ring In 925 Silver

20 Ct Certified HPHT Treated Gorgeous Off White Diamond Engagement Ring.925 Silver

Diamond Jewelry

Believe Diamond Hong Kong

Starts on:

Kowloon, Hong Kong , HK

PT900 SAPPHIRE RING

PT950 DIAMOND RING

K18YG DIAMOND RING

26623 | Exceptional Diamond Collection

Starts on:

Beverly Hills, CA, US

IGI Oval 1.39ct E VVS2 - Loose Lab Diamond

IGI Oval 2.03ct E IF - Loose Lab Diamond

IGI Round 2.05ct E VVS2 - Ideal Loose Lab Diamond

Luminesce Lab: Diamonds & Beyond

Starts on:

Raleigh, NC, US

5 days Left

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