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Natural Diamond & Gemstone Jewelry

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1067 products

Antique Platinum Cabochon Blue Sapphire CufflinksAntique Platinum Cabochon Blue Sapphire Cufflinks
Antique Platinum Double-Sided Cabochon Sapphire Cufflinks Sale price$7,500.00
John Reubens Amethyst Rock Crystal Pearl Large BroochVintage John Reubens Amethyst Rock Crystal Pearl Large Brooch
Vintage John Reubens Amethyst Rock Crystal Pearl Large Brooch Sale price$450.00
Edwardian Gold & Platinum Rose-Cut Diamond Floral HatpinEdwardian Gold Platinum Rose-Cut Diamond Floral Hatpin
Edwardian Gold & Platinum Rose-Cut Diamond Floral Hatpin Sale price$9,500.00
Iradj Moini Amethyst Green Agate Beads Drop Tassel EarringsIradj Moini Amethyst Green Agate Beads Drop Tassel Earrings 1
Iradj Moini Amethyst Green Agate Beads Drop Tassel Earrings Sale price$750.00
Art Deco Jade Citrine Necklace GoldArt Deco Jade Necklace Gold
Art Deco Carved Jade and Citrine Necklace in 14K Gold Sale price$9,500.00
Edwardian Black Opal Diamond Platinum RingBlack Opal Diamond Ring
Edwardian Black Opal and Old Mine Cut Diamond Platinum Ring Sale price$18,500.00
Retro 14K Yellow and Rose Gold Citrine, Ruby Diamond Scroll BroochTwo-Tone Retro Gold Brooch Citrine Rubies Diamonds
Two-Tone Retro Gold Scroll Brooch with Citrine, Rubies, and Diamonds Sale price$14,500.00
Magnificent 18K Gold Diamond Pearl Cluster Ring18K White Gold Diamond and Pearl Cluster Ring
Magnificent 18K White Gold Diamond and Pearl Cluster Ring Sale price$14,500.00
Vintage Iradj Moini Amethyst Citrine Red Crystal Chandelier EarringsVintage Iradj Moini Amethyst Citrine Red Crystal Chandelier Earrings 2
Vintage Iradj Moini Amethyst Citrine Red Crystal Chandelier Earrings Sale price$1,250.00
Tiffany & Co. Leo de Vroomen 18K Gold Blue Enamel Citrine CufflinksTiffany Co. 18K Gold Blue Enamel Citrine Cufflinks
Tiffany & Co. Leo de Vroomen 18K Gold Blue Enamel Citrine Cufflinks – London Sale price$7,850.00
Retro 18K Gold Ruby and Diamond Starburst EarringsRetro Gold Ruby and Diamond Starburst Earrings
Retro Gold Ruby and Diamond Starburst Earrings Sale price$7,500.00
Cartier Paris Natural Fancy-Colored Diamond Platinum and Gold Stick PinCartier Paris Natural Fancy-Colored Diamond Platinum and Gold Stick Pin
Cartier Paris Natural Fancy-Colored Diamond Platinum and Gold Stick Pin Sale price$29,500.00
Cartier Unheated Natural Ruby Platinum Stick PinCartier Unheated Ruby Platinum Stick Pin
Cartier Unheated Natural Ruby Platinum Stick Pin Sale price$35,500.00
Cartier Amethyst Diamond Stick PinCartier Edwardian Platinum Amethyst & Diamond Stick Pin
Cartier Platinum Amethyst and Diamond Stick Pin Sale price$19,500.00
Cartier Paris Platinum Unheated Burma Sapphire Stick PinCartier Platinum Unheated Burma Sapphire Stick Pin
Cartier Paris Platinum Unheated Burma Sapphire Stick Pin – 1.5 Carats Sale price$35,500.00
Cartier Paris Art Deco 18K Gold Emerald Diamond Stick PinCartier Paris Art Deco 18K Gold Emerald and Diamond Stick Pin
Cartier Paris Art Deco 18K Gold Ruby and Diamond Stick Pin Sale price$9,500.00
Cartier Paris Art Deco 18K Gold Emerald Diamond Stick PinCartier Paris Art Deco 18K Gold Emerald and Diamond Stick Pin
Cartier Paris Art Deco 18K Gold Emerald and Diamond Stick Pin Sale price$11,500.00
Cartier Henri Picq Art Deco Sapphire Diamond Platinum Stick PinCartier by Henri Picq Sapphire Diamond Platinum Stick Pin
Cartier by Henri Picq Art Deco Sapphire and Diamond Platinum Stick Pin Sale price$19,500.00
Cartier Art Deco Platinum Diamond Stick Pin – Double Baguette DesignCartier Art Deco Platinum Diamond Stick Pin – Double Baguette Design
Cartier Art Deco Platinum Diamond Stick Pin – Double Baguette Design Sale price$11,500.00
Cartier Art Deco Sapphire and Diamond Stick PinCartier Sapphire and Diamond Stick Pin
Cartier New York Art Deco Sapphire and Diamond Platinum Stick Pin Sale price$17,500.00
Cartier Art Deco Platinum Emerald Diamond Stick Pin Henri PicqHenri Picq Cartier Platinum Emerald Diamond Stick Pin
Cartier Art Deco Platinum Emerald and Diamond Stick Pin by Henri Picq Sale price$19,500.00
Rare Cartier by Henri Picq Platinum Carved Sapphire Intaglio Stick PinRare Cartier by Henri Picq Platinum Carved Sapphire Intaglio Stick Pin
Rare Cartier by Henri Picq Platinum Carved Sapphire Intaglio Stick Pin Sale price$29,500.00
Victorian Gold Bracelet Cabochon GarnetAntique Victorian Gold Bracelet with Cabochon Garnet
Antique Victorian Gold Bracelet with Cabochon Garnet Centerpiece Sale price$10,500.00
Edwardian Stick Pin Sapphire DiamondsEdwardian Platinum Stick Pin with Sapphire and Diamonds
Edwardian Platinum Stick Pin with Sapphire and Diamonds Sale price$2,950.00
Vintage Iradj Moini Turquoise Amethyst Snake Wrap BraceletVintage Iradj Moini Turquoise Amethyst Snake Wrap Bracelet 1
Vintage Iradj Moini Turquoise Amethyst Snake Wrap Bracelet Sale price$1,950.00
Faceted Citrine 18K Gold & Diamond Cufflinks Faceted Citrine 18K Gold Diamond Cufflinks
Faceted Citrine 18K Gold & Diamond Cufflinks Sale price$5,500.00
David Yurman Silver Gold Amethyst Chalcedony Shrimp Earrings David Yurman Silver Gold Amethyst Chalcedony Shrimp Earrings
David Yurman Silver Gold Amethyst Chalcedony Shrimp Earrings Sale price$1,450.00
Diamond South Sea Pearl Platinum Ring Diamond Pearl Platinum Ring
Natural Diamond South Sea Pearl Platinum Ring – 18.00 CTW Sale price$45,000.00
Black Opal Diamond Platinum Ring VintageBlack Opal Diamond Platinum Ring - Vintage
Black Opal GIA 7 Carat Diamond Ring in Platinum Art Deco Sale price$75,000.00
Amethyst Citrine Cabochon Ring Diamond in 18K GoldBold Amethyst & Citrine Cabochon Ring with Diamonds in 18K Gold
Bold Amethyst & Citrine Cabochon Ring with 2 CWT Diamonds in 18K Gold Sale price$8,500.00
18K Gold Harlequin-Design Diamond Sapphire Citrine RingColorful 18K White Gold Harlequin-Design Sapphire Citrine Ring
Vibrant 18K Gold Harlequin-Design Diamond Sapphire & Citrine Ring Sale price$5,950.00
Antique Edwardian Platinum Gold Sapphire Cufflinks Antique Edwardian Platinum Gold Sapphire Cufflinks
Antique Edwardian Platinum Gold Sapphire Cufflinks Sale price$3,950.00
Cartier Black Lacquer Pen with Platinum Finish and Blue CabochonCartier Black Lacquer Pen with Platinum Finish and Blue Cabochon
Cartier Black Lacquer Pen with Platinum Finish and Blue Cabochon Sale price$550.00
Antique Victorian Gold Enamel Garnet NecklaceAntique Victorian Gold Enamel Garnet Necklace
Antique Victorian Gold Enamel Garnet Necklace Sale price$16,500.00
Hans Brassler Art Nouveau Gold Stick Pin Garnet Pearl Hans Brassler Hallmark Art Nouveau Gold Stick Pin with Garnet and Pearl
Hans Brassler Art Nouveau Gold Stick Pin with Garnet and Pearl Sale price$1,450.00
Antique Edwardian 14K Gold Garnet Men's Ring EngravedAntique Edwardian 14K Gold Garnet Men's Ring – Engraved
Antique Edwardian 14K Gold Garnet Men's Ring – Engraved Sale price$7,500.00
Antique Miniature Book Box in 18K Gold Diamond Crown Guilloché EnamelAntique Miniature Book Box in 18K Gold Diamond Crown Guilloché Enamel
Antique Miniature Book Box in 18K Gold Diamond Crown Guilloché Enamel Sale price$14,500.00
Antique 18K Gold Sapphire & Diamond Oval CufflinksAntique 18K Gold Sapphire & Diamond Oval Cufflinks
Antique 18K Gold Sapphire & Diamond Oval Cufflinks Sale price$7,500.00
Luxury Sautoir Necklace in Platinum with Diamonds and Pearls – 6 CTWLLuxury Sautoir Necklace in Platinum with Diamonds and Pearls – 6 CTW
Luxury Sautoir Necklace in Platinum with Diamonds and Pearls – 6 CTW Sale price$19,500.00
Furrer Jacot 18K Gold Diamond Band RingFurrer Jacot 18K Gold Diamond Band Ring
Furrer Jacot 18K Gold Diamond Band Ring – 1.04ctw Swiss Made Sale price$7,500.00
Scott Kay Sapphire Princess Cut Diamond Platinum RingScott Kay Sapphire Princess Cut Diamond Platinum Ring
Scott Kay Unheated Sapphire Princess Cut Diamond Platinum Ring Sale price$14,500.00
Tanzanite Ring Diamond GoldTanzanite Pear-Shaped Ring Diamond Halo Gold
Tanzanite Pear-Shaped Ring with Diamond in 14K Gold Sale price$8,500.00
Hans Brassler Gold Sapphire Stick PinHans Brassler Gold Sapphire Stick Pin Hallmark
Hans Brassler Art Nouveau Gold Sapphire Stick Pin Sale price$1,550.00
Edwardian Cufflinks with Diamond, Bloodstone, Carnelian, Onyx & Agate Gold PlatinumEdwardian Cufflinks with Diamond, Bloodstone, Carnelian, Onyx & Agate Gold Platinum
Edwardian Cufflinks with Diamond, Bloodstone, Carnelian, Onyx & Agate Gold Platinum Sale price$9,500.00
Victorian Garnet Diamond Ring Marquise Shape Gold EnamelAntique Garnet Diamond Ring Marquise Shape Gold Enamel
Victorian Garnet and Diamond Ring – Marquise Shape Gold and Enamel Sale price$9,500.00
Turquoise Diamond Ring 18K Gold PlatinumSculptural Turquoise Diamond Cocktail Ring 18K Gold Platinum
Sculptural Turquoise and Diamond Cocktail Ring in 18K Gold and Platinum 10 CTW Sale price$38,500.00
Iradj Moini Amethyst Turquoise Resin Interchangeable Long EarringsIradj Moini Amethyst Turquoise Resin Interchangeable Long Earrings 1
Iradj Moini Amethyst Turquoise Resin Interchangeable Long Earrings Sale price$1,450.00
Antique Victorian Pearl Garnet Diamond NecklaceAntique Victorian Pearl Garnet Diamond Necklace
Antique Victorian Pearl Garnet Old Mine Cut Diamond Necklace – 11 CTW Sale price$75,000.00