Colour change rings

Vintage, 4ct fiery orange spinel & diamond ring, 18ct yellow gold

Antique, Victorian, colour change sapphire & diamond three-stone ring

Antique, three-stone cabochon opal & diamond ring, 18ct yellow gold

Antique, Victorian cabochon white Australian opal ring, 18ct yellow gold

Antique, Edwardian, opal cocktail ring, 18ct white gold

Vintage 6.44ct sapphire & diamond three-stone engagement ring