20th Century Diamond Jewellery

Vintage Solitaire Ring, 18K Gold and 2.5 mm Diamond. 1980s

Vintage Solitaire Ring in 18K Gold with 3.5 mm Natural Diamond

Beautiful Vintage Set of 18K Gold Ring and Earrings with Diamonds and Sapphire

Vintage Beautiful 18K Gold Set with Diamonds and Rubies

Vintage 18K Gold Jewelry Set with Cabochon Rubies and Diamonds

Vintage 18K White Gold Flower-shaped Ring with Natural Diamonds

Vintage 18k Gold Ring with 7 Natural Diamonds in Floral Setting

Vintage Matching Ring & Earrings 18K Gold Set with Natural Diamonds

Vintage 18k Gold Ring with 10 Natural Diamonds, Central Stone

Vintage Earrings in 18k Gold with Natural Diamonds & Pearls c.1950

Vintage Necklace in 18k Gold with 9 Emeralds & 250 Diamonds c.1950

Rosette Ring with 9 Diamonds, 18k White Gold with Gemological Certification

Vintage 18K Gold Ring with 33 Natural Rubies and 48 Authentic Diamonds

Vintage Solitaire 18K Gold Ring with Natural 3.5 mm Diamond

Vintage 9.50ct Sapphire, 0.72ct Ruby & 1.00ct Diamond, 18k Yellow Gold Earrings c.1970

Vintage 1.90ct Ruby & 1.35ct Diamond, 15ct White Gold Brooch c.1970

Vintage 1.70ct Diamond & 14k White Gold Twirl Earrings c.1940

4.72ct Diamond & 18k Yellow Gold Spray Brooch c.1935

Antique 28.50ct Cushion Cut Amethyst and Diamond, Platinum Ring Circa 1930

1950's Diamond & Pearl Earrings 18ct White Gold 1.0ct Diamond Earrings Vintage Clip-ons

5.50ct Opal, Natural Saltwater Pearl & 8.31ct Diamond, Platinum Pendant c.1935

Vintage 1.0ct Old Cut Diamond Topaz Cluster Ring 18ct Gold Victorian Style Ring 1950s Ring

Impressive 9ct Gold Cameo on Hardstone Pendant Necklace

Antique Art Deco Large 9.68ct Diamond and Platinum Brooch Circa 1925

Vintage 2.02ct Sapphire & 0.28ct Diamond, 18k White Gold Brooch 1968

Antique Natural Pearl and 0.95ct Diamond, 12k Yellow Gold Pendant Brooch Circa 1900

Ruby & 0.23ct Diamond, 18k Yellow Gold Pig Pin Brooch c.1930

1.13ct Diamond & 18k Yellow Gold Solitaire Ring c.1930

Antique Art Deco 2.18ct Diamond and 18k White Gold Brooch Circa 1925

18ct Gold Diamond Cross Pendant on 9ct Gold Chain

Art Deco 13.35ct Diamond & Platinum Necklace c.1935

Beautiful 18ct White Gold Diamond & Sapphire Multi Stone Engagement - Eternity Ring - Boxed

Stunning 1.4ct Platinum Solitaire Diamond Ring - Boxed

Vintage Cultured Pearl & 1.07ct Diamond, Platinum Earrings c.1950

Antique & Vintage 1.29ct Ruby & 0.60ct Diamond 18k Yellow Gold Trilogy Ring

Vintage 3.27ct Citrine & 0.80ct Diamond, 18k Yellow Gold Ring 1984

Edwardian Gold & Platinum Diamond & Pearl Pendant

Antique Art Deco 0.40ct Emerald and 1.52ct Diamond, Platinum Dress Ring Circa 1920

Antique 4.76ct Diamond and 18k Yellow Gold Trilogy Ring Circa 1900

Vintage 2.50ct Ceylon Sapphire and 0.75ct Diamond, Platinum Dress Ring Circa 1970