Mid-Century Turquoise Guilloché Enamel Pendant chrysoberyl The diamond sits in the

The diamond sits in the centre of a navy blue enamelled star and eight vibrant opals displaying an array of colour

or Aluminium Oxide) but was created by a human in a laboratory without help from the forces of nature

as documented in the ^Los Angeles Herald 20th March 1913: "BEGINNING NEXT SUNDAY AFTERNOON—FIRST PRODUCTION IN AMERICA

68ct Old European Cut Diamonds - H/I colour

Mid-Century Turquoise Guilloché Enamel Pendant chrysoberyl The diamond sits in theDATE: Mid Century, circa 1950 Charming mid century disc pendant dating from the 1950s. It's finished in turquoise guilloch enamel over an intricate, engine turned, spiderweb style pattern. Simple and sophisticated, and effortlessly elegant. MEASUREMENTS 1. 8 x 1. 6cm (not including jump ring) WEIGHT 1. 5g MARKS No marks present, tests as silver CONDITION Very good