Solitaire (single-stone) engagement rings

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

Antique, Art Nouveau Solitaire Diamond Engagement Ring, 14ct Yellow Gold

Contemporary, Solitaire Diamond Engagement Ring, 18ct Yellow Gold

Vintage Solitaire Diamond Engagement Ring, 18ct Yellow Gold and Platinum

Vintage, Unique 1970s Diamond Engagement Ring, 18ct Yellow Gold

Vintage, 1930s Solitaire Old Cut Diamond Engagement Ring, 18ct Yellow Gold and Platinum

Contemporary, Solitaire old cut Diamond Engagement Ring, 18ct Yellow Gold

Antique, Edwardian Single-Stone Old Cut Teal Sapphire Ring, 18ct Rosy Yellow Gold

Vintage, 1930s Diamond Engagement Ring, 18ct Yellow Gold and Platinum

French, Art Deco Fine Aquamarine Single-Stone Ring, 18ct Yellow Gold

Vintage, 1960s Tiffany & Co Solitaire Diamond Class Ring, 18ct Yellow Gold

Antique, Edwardian Solitaire Diamond Engagement Ring, 18ct Yellow Gold and Platinum

Antique, Edwardian, early synthetic pink sapphire single-stone ring

Vintage, 1950s diamond engagement ring, 14ct white gold & platinum

Victorian, cabochon pink topaz ring, 18ct yellow gold

Antique, Victorian, solitaire diamond engagement ring, 18ct yellow gold

Antique, French, 4.5ct sapphire single-stone engagement ring, 18ct yellow gold

Antique, aquamarine single stone ring, 14ct yellow gold

Antique, oval-cut aquamarine single stone ring, 14ct yellow gold

Antique, Victorian, solitaire diamond engagement ring, 18ct yellow gold

Vintage 17ct pale pink morganite ring, 14ct rose gold

Vintage, pale pink topaz ring, 14ct rose gold

Victorian diamond snake ring, 18ct yellow gold

Art Deco, emerald-cut aquamarine ring, 14ct yellow gold

Vintage, textured diamond nugget ring, 18ct yellow gold

Engagement | 18ct white gold, 1.50ct diamond solitaire ring

Art Deco | 1920s, platinum, diamond engagement ring