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Rachel Koen 18K White Gold 2.21ct Emerald Cut Diamond Engagement Ring GIA Certified: Rachel Koen 18K White Gold 2.21ct Emerald Cut Diamond Engagement Ring GIA Certified This exquisite engagement ring showcases a stunning square emerald cut natural diamond at its center, weighing 2.21

May 31, 2026

Rachel Koen 18K White Gold 2.21ct Emerald Cut Diamond Engagement Ring GIA Certified

Est. $32,110-$41,743

$100

BidhausNew York, NY

GIA Certified 6.19ct E VVS2 Round Diamond: GIA Certified 6.19ct E VVS2 Round Diamond GIA Certified 6.19ct E VVS2 Round Diamond Presenting a stunning GIA certified loose round brilliant diamond, weighing 6.19 ct. This diamond features an E colo

2 days Left

GIA Certified 6.19ct E VVS2 Round Diamond

Est. $430,482-$559,626

$331,000

Mynt AuctionsNew York, NY

Art Deco Platinum GIA Certified 1.17ct Marquise Diamond Sapphire Bracelet: Art Deco Platinum GIA Certified 1.17ct Marquise Diamond Sapphire Bracelet Discover an exquisite Antique Art Deco bracelet meticulously crafted in solid platinum, featuring a stunning GIA-certified mar

Jun 05, 2026

Art Deco Platinum GIA Certified 1.17ct Marquise Diamond Sapphire Bracelet

Est. $14,378-$18,691

$100

Mynt AuctionsNew York, NY

18K White Gold GIA Certified 3.02 Ct Diamond Ring E VS1: 18K White Gold GIA Certified 3.02 Ct Diamond Ring E VS1 This exquisite 18K White Gold Diamond Ring features a stunning GIA Certified 3.02 Ct. round diamond at its center, exhibiting E color and VS1 cl

Jun 01, 2026

18K White Gold GIA Certified 3.02 Ct Diamond Ring E VS1

Est. $78,221-$101,687

$100

Mynt AuctionsNew York, NY

Platinum GIA Certified 2.43ctw Oval Blue Sapphire Diamond Ballerina Ring: Platinum GIA Certified 2.43ctw Oval Blue Sapphire Diamond Ballerina Ring This exquisite cocktail ring features a stunning oval sapphire, complemented by sparkling diamonds. The main gemstone is a natu

2 days Left

Platinum GIA Certified 2.43ctw Oval Blue Sapphire Diamond Ballerina Ring

Est. $2,860-$3,718

$100

Mynt AuctionsNew York, NY

1.15 Carat GIA Certified Old European Cut Diamond Ring in 14K White Gold: 1.15 Carat GIA Certified Old European Cut Diamond Ring in 14K White Gold This vintage engagement ring features a stunning 1.15 carat Old European cut diamond, certified by GIA. Crafted from 14K white

3 days Left

1.15 Carat GIA Certified Old European Cut Diamond Ring in 14K White Gold

Est. $5,278-$6,861

$100

BidhausNew York, NY

Platinum GIA Certified 1.01ctw Trillion Cut Diamond Bezel Engagement Ring: Platinum GIA Certified 1.01ctw Trillion Cut Diamond Bezel Engagement Ring This stunning engagement ring features a GIA certified 1.01 carat trillion cut diamond, elegantly bezel set in solid 950 plati

4 days Left

Platinum GIA Certified 1.01ctw Trillion Cut Diamond Bezel Engagement Ring

Est. $6,188-$8,044

$100

Mynt AuctionsNew York, NY

Platinum GIA Certified 9.03ct Green Tourmaline Diamond Cocktail Ring: Platinum GIA Certified 9.03ct Green Tourmaline Diamond Cocktail Ring This exquisite cocktail ring features a stunning natural green tourmaline, expertly cut in a long rectangular shape and channel set

5 days Left

Platinum GIA Certified 9.03ct Green Tourmaline Diamond Cocktail Ring

Est. $5,785-$7,520

$100

Mynt AuctionsNew York, NY

14K White Gold GIA Certified 1.07 Ct Pear-Shape Diamond Ring: 14K White Gold GIA Certified 1.07 Ct Pear-Shape Diamond Ring This exquisite 14K white gold ring features a stunning GIA certified 1.07 Ct. pear-shape diamond at its center, showcasing a beautiful I co

3 days Left

14K White Gold GIA Certified 1.07 Ct Pear-Shape Diamond Ring

Est. $4,667-$6,067

$100

Mynt AuctionsNew York, NY

GIA Certified 1.51ct Round Diamond Engagement Ring in 18K Gold & Platinum: GIA Certified 1.51ct Round Diamond Engagement Ring in 18K Gold & Platinum This exquisite engagement ring showcases a stunning GIA certified 1.51ct round brilliant cut diamond, elegantly set in a combi

7 days Left

GIA Certified 1.51ct Round Diamond Engagement Ring in 18K Gold & Platinum

Est. $19,136-$24,876

$100

Mynt AuctionsNew York, NY

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Huge Rare 17.72 Ct GIA Certified Natural Sapphire: Large Untreated 17.72 Ct Blue Star Sapphire is an oval double cabochon cut measuring 17.16 x 14.28 x 6.44 mm. This incredible Sapphire displays a moderately strong saturation with a medium light tone.

6 days Left

Huge Rare 17.72 Ct GIA Certified Natural Sapphire

Est. $56,300-$78,800

$1

1 Great Deal Auctions Meridian, ID

Victorian GIA Certified Diamond Emerald Ring Platinum 18K Gold: Victorian GIA Certified Diamond Emerald Ring Platinum 18K Gold This exquisite Victorian ring showcases a stunning combination of a GIA Certified 1.85 Ct. Old European-cut Diamond and a vibrant 2.26 Ct

Jun 05, 2026

Victorian GIA Certified Diamond Emerald Ring Platinum 18K Gold

Est. $17,641-$22,933

$100

Mynt AuctionsNew York, NY

Vintage Platinum GIA Certified 4.67ctw Pink Sapphire Diamond Ring: Vintage Platinum GIA Certified 4.67ctw Pink Sapphire Diamond Ring This exquisite vintage cocktail ring showcases a breathtaking natural pink sapphire, weighing 3.24 carats, set in solid platinum. The

Jun 02, 2026

Vintage Platinum GIA Certified 4.67ctw Pink Sapphire Diamond Ring

Est. $12,480-$16,224

$100

Mynt AuctionsNew York, NY

GIA Certified 14K White Gold 23.10 Carat Diamond Tennis Necklace: GIA Certified 14K White Gold 23.10 Carat Diamond Tennis Necklace This 14K white gold graduated diamond tennis necklace features a total diamond weight of approximately 23.10 carats, including 126 diam

May 29, 2026

GIA Certified 14K White Gold 23.10 Carat Diamond Tennis Necklace

Est. $30,342-$39,444

$100

Mynt AuctionsNew York, NY

GIA Certified 4.71ct Oval Cabochon Purple Star Sapphire Diamond Ring in Platinum: GIA Certified 4.71ct Oval Cabochon Purple Star Sapphire Diamond Ring in Platinum This exquisite cocktail ring features a stunning natural purple star sapphire, expertly crafted in an elegant platinum

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GIA Certified 4.71ct Oval Cabochon Purple Star Sapphire Diamond Ring in Platinum

Est. $2,964-$3,853

$100

Mynt AuctionsNew York, NY

Platinum Diamond Eternity Band with 15.53 Carat Emerald-Cut Stones GIA Certified: Platinum Diamond Eternity Band with 15.53 Carat Emerald-Cut Stones GIA Certified This emerald-cut diamond eternity band features fifteen colorless diamonds with a total weight of 15.53 carats, set in

May 29, 2026

Platinum Diamond Eternity Band with 15.53 Carat Emerald-Cut Stones GIA Certified

Est. $108,862-$141,520

$100

BidhausNew York, NY

14k White Gold GIA Certified 1.17ct Diamond Sapphire Engagement Ring: 14k White Gold GIA Certified 1.17ct Diamond Sapphire Engagement Ring This exquisite engagement ring is crafted from solid 14k white gold and features a stunning design with a GIA certified pear brilli

2 days Left

14k White Gold GIA Certified 1.17ct Diamond Sapphire Engagement Ring

Est. $2,964-$3,853

$100

Mynt AuctionsNew York, NY

18k Yellow Gold GIA Certified 3ctw Yellow & White Diamond Bombe Band Ring: 18k Yellow Gold GIA Certified 3ctw Yellow & White Diamond Bombe Band Ring This exquisite Bombe Band Ring is crafted from solid 18k yellow gold and features a stunning combination of fancy yellow and w

Jun 05, 2026

18k Yellow Gold GIA Certified 3ctw Yellow & White Diamond Bombe Band Ring

Est. $8,671-$11,272

$100

Mynt AuctionsNew York, NY

Platinum Burma Sapphire and Diamond Halo Ring GIA Certified No Heat 6.69ct: Platinum Burma Sapphire and Diamond Halo Ring GIA Certified No Heat 6.69ct This platinum cocktail ring features a large, cushion-cut natural blue sapphire from Burma, weighing 4.50 carats and certifie

Jun 02, 2026

Platinum Burma Sapphire and Diamond Halo Ring GIA Certified No Heat 6.69ct

Est. $16,237-$21,108

$100

Mynt AuctionsNew York, NY

GIA Certified 1.50ct Round Diamond Pendant Necklace 18k White Gold: GIA Certified 1.50ct Round Diamond Pendant Necklace 18k White Gold This exquisite pendant necklace features a stunning GIA Certified 1.50 carat round brilliant diamond set in 18k white gold. The diamo

Jun 01, 2026

GIA Certified 1.50ct Round Diamond Pendant Necklace 18k White Gold

Est. $19,136-$24,876

$100

BidhausNew York, NY

GIA Certified 14K White Gold 0.66ct Marquise Diamond Pendant Necklace: GIA Certified 14K White Gold 0.66ct Marquise Diamond Pendant Necklace This exquisite pendant necklace is crafted from solid 14K white gold and features a stunning GIA certified marquise brilliant cut

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GIA Certified 14K White Gold 0.66ct Marquise Diamond Pendant Necklace

Est. $1,729-$2,247

$100

BidhausNew York, NY

Vintage 18K Gold GIA Certified Graduated Rondelle Ruby Necklace 32 Inches: Vintage 18K Gold GIA Certified Graduated Rondelle Ruby Necklace 32 Inches This exquisite Vintage Italian necklace features 18K solid yellow gold and showcases a stunning array of 46 natural genuine ru

5 days Left

Vintage 18K Gold GIA Certified Graduated Rondelle Ruby Necklace 32 Inches

Est. $9,620-$12,506

$100

Mynt AuctionsNew York, NY

Platinum GIA Certified 7.32ct Cat's Eye Rubellite Tourmaline Ring with Diamond Halo: Platinum GIA Certified 7.32ct Cat's Eye Rubellite Tourmaline Ring with Diamond Halo This stunning cocktail ring features a natural genuine Cat's Eye Rubellite Tourmaline, showcasing an oval double cab

5 days Left

Platinum GIA Certified 7.32ct Cat's Eye Rubellite Tourmaline Ring with Diamond Halo

Est. $3,913-$5,086

$100

Mynt AuctionsNew York, NY

Double Strand Tahitian Pearl Necklace With GIA Certified 10ct Diamond Flower Clasp: Double Strand Tahitian Pearl Necklace With GIA Certified 10ct Diamond Flower Clasp This exquisite dual strand necklace features 74 genuine cultured Tahitian pearls in near round shape, displaying dark

May 31, 2026

Double Strand Tahitian Pearl Necklace With GIA Certified 10ct Diamond Flower Clasp

Est. $25,649-$33,343

$100

BidhausNew York, NY

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