Solitaire or single-stone rings

Antique, French, 4.5ct Sapphire Single-Stone Engagement Ring, 18ct Yellow Gold

Antique, Edwardian Single Stone Emerald and Diamond Ring, Platinum

Vintage, Art Deco Zircon and Diamond Ring, Platinum and Iridium

Vintage, French, 5.65ct Citrine Cocktail Ring, 18ct Yellow Gold

Antique, Victorian, Solitaire Diamond Engagement Ring, 18ct Yellow Gold

Antique, Oval-cut Aquamarine Single Stone Ring, 14ct Yellow Gold

Antique, Aquamarine Single Stone Ring, 14ct Yellow Gold

Vintage, Art Deco Single Stone Zircon Ring, 18ct Yellow Gold & Platinum

Antique, Edwardian Liliac Hazy Ring, 18ct Yellow Gold and Platinum

Victorian Diamond Snake Ring, 18ct Yellow Gold

Vintage, French, Marquise-cut Aquamarine Ring, 18ct White Gold

Vintage 17ct Pale Pink Morganite Ring, 14ct Rose Gold

Vintage, Solitaire 3.1ct Round Brilliant-Cut Diamond Ring, 18ct Yellow Gold

Tiffany & Co | An Incredible Morganite Ring, Set in 18ct Rose Gold

Vintage 0.32ct Solitaire Diamond Engagement Ring, 18ct Yellow Gold

Antique, Edwardian, Sri Lankan 2.88ct Pink Sapphire Solitaire Ring, Silver

Vintage, Square-cut Aquamarine and Diamond Ring, 18ct White Gold

Art Deco, Emerald-Cut Aquamarine Ring, 14ct Yellow Gold

Antique Cabochon Pale Pink Topaz Ring, 18ct Yellow Gold

Antique 2.2ct Round-Cut Diamond Solitaire Engagement Ring, Platinum

Vintage | Textured Diamond Nugget Ring, 18ct Yellow Gold

Art Deco | 1920s, Platinum, Diamond Engagement Ring

Engagement | 18ct White Gold, 1.50ct Diamond Solitaire Ring

Engagement | Victorian, 18ct Gold, Diamond Solitaire Ring