What periods do these rings represent?

The pieces span the nineteenth century through the Edwardian and Art Deco eras into the mid-twentieth century and later decades. Victorian and Edwardian examples sit alongside 1950s cocktail rings and 1960s designs. Each period brings distinct mount styles, from delicate halo clusters to substantial single-stone settings in varying gold purities.

How are opals secured in these mounts?

Opals appear in both bezel settings and traditional claw mounts across various historical periods. Bezels encircle the stone edge to offer physical protection. Claw mounts elevate the opal to catch light, allowing full display of the play of colour across the cabochon surface.

What distinguishes a cocktail ring?

Cocktail rings feature large, prominent central stones designed for visual prominence during evening wear. Examples incorporate substantial amethysts, jade or multi-carat sapphires. These pieces frequently utilise heavy gold gram weights and wide shanks to support the sizeable oval gemstones.

Are unheated gemstones common?

Unheated stones appear among sapphire and ruby listings, denoting gems that have undergone no thermal enhancement. Gemmological reports often accompany these specific pieces. Such documentation verifies the natural origin and untreated status of stones originating from sources like Burma or Ceylon.