Early 20th Century 1.22 Carat Century Ruby & 1.38 Carat Old Cut Diamond Trilogy Ring, circa 1925

Late 20th Century Sapphire & Diamond Trilogy Ring, circa 1975

Contemporary Platinum Diamond Ruby 3-Stone Ring 1.58ct

Victorian 1.00 Carat Ruby Trilogy & Diamond Ring, circa 1900

Art Deco 1.70 Carat Old Cut Diamond Trilogy Ring, circa 1935

Elegant antique diamond ring with triangular diamonds

Art Deco 1.13 Carat Old European Cut Diamond Trilogy Ring, circa 1925

Montpassier™ three-stone ring

Sapphire and Diamond Platinum Ring

Mid Century 2.14 Carat Old Cut Diamond Trilogy Ring, circa 1960

Retro Emerald, Fancy Orange & White Old Cut Diamond Three Stone Ring, circa 1945

Tourmaline three-stone ring

Mandarin garnet three-stone ring

Art Deco 1.48 Carat Cushion & Round Old Cut Diamond Trilogy Ring, circa 1945

14K Yellow Gold Ruby and Diamond Ring

Montpassier™ ring with 1.24 carat natural sapphire

BOODLES Step Cut Sapphire & Old Cut Diamond Trilogy Ring, 18k Yellow Gold

Diamond Sapphire Platinum Cluster Ring Three Stone

Art Deco 1.28 Carat Old Cut Diamond Trilogy Crossover Ring, circa 1915

GIA 2.46 ct G/VVS2 RB in a platinum three-stone ring

3.47 Carats Three Asscher Cut Diamond Platinum Engagement Ring

Art Deco 2.96 Carat Old Cut Diamond Trilogy Ring, circa 1925

3.24 Carat Pear Shape Diamond Platinum Three-Stone Ring

Handmade Platinum, Ruby & Diamond Ring

Three-stone ring with a total of 2.41 carat of diamonds

Art Deco 1.80 Carat Cognac Yellow & White Old Cut Diamond Trilogy Crossover Ring, circa 1935

Mid Century Ruby & Old Cut Diamond Cluster Ring, circa 1955

Art Deco 0.50 Carat Diamond & Sapphire Trilogy Ring, circa 1920

Art Deco 0.90 Carat Old Cut Diamond & Tapered Baguette Cut Sapphire Trilogy Ring, circa 1930

5.93 carat Fine Blue Sapphire Ring

Victorian 3.50ct Natural Sapphire Three Stone Ring, circa 1880

Mid Century 0.88 Carat Old Cut Diamond & Sapphire Three Stone Ring, circa 1955

18K White Gold Sapphire And Diamond Ring

2.09ct Marquise Diamond in 3 Stone Ring

Retro Colombian Emerald & Baguette Cut Diamond Trilogy Ring, circa 1945

Retro Sapphire & Old Cut Diamond Trilogy Ring, circa 1945

Art Deco 3.00 Carat Emerald & 1.80 Carat Old Cut Diamond Trilogy Ring, circa 1940

Victorian 1.65 Carat Old Cut Diamond Trilogy Ring, circa 1880

Edwardian 1.55 Carat Old Cut Diamond Trilogy Ring, circa 1905

Victorian 1.40 Carat Old Cut Diamond Trilogy Ring, circa 1900

Art Deco 0.75 Carat Old Cut & Ruby Trilogy Ring, circa 1915

3.90 Carats Cushion Natural No Heat Ruby Diamonds Platinum Ring

Mid Century 0.80 Carat Old Cut Diamond Ornate Trilogy Ring, circa 1960

Mid Century 1.78 Carat Old Cut Diamond Trilogy Ring, circa 1965

Mid Century 0.75 Carat Old Cut Diamond Trilogy Ring, circa 1950

Victorian Cat’s Eye Chrysoberyl & Old Cut Diamond Gypsy Ring, circa 1900

Retro 3.05 Carat Natural Sapphire & Old Cut Diamond Trilogy Ring, circa 1945

Victorian 0.90 Carat Old Cut Diamond & Cabochon Sapphire Trilogy Ring, circa 1900