Art Deco Square Sapphire & Diamond Trilogy Ring chrysoprase set on a platinum fronted

set on a platinum fronted bar and otherwise modelled in 18 karat gold

and features a brown/black dendrite framed in the centre

Whilst it's not marked

The central stone is triangular in shape

Art Deco Square Sapphire & Diamond Trilogy Ring chrysoprase set on a platinum frontedDATE: Art Deco, c. 1920 Stylish Art Deco period trilogy ring dating from the 1920s. The principal stone is a . 66ct square step cut sapphire displaying vivid royal blue colour, flanked by two icy white old mine cut diamonds (quarter carats each). Stones are set in platinum, setting up a gorgeous contrast with the rich yellow gold shoulders and band. The three stones of a trilogy ring are said to represent the past, present, and future, making them a