Mid Century 5.18 Carat Natural Colour Change Sapphire & Old Cut Diamond Ring, circa 1970
A wonderful, daring – and frankly slightly bonkers colour change sapphire and diamond cluster ring. The central sapphire – certified as natural and unheated – displays a rich blue in daylight and a deep, regal blue in incandescent light. Twelve old mine cut diamonds surround the centres stone, with flamboyant wired spring-like detailing in the surround. A further six (three either side) old cut diamonds are set at the shoulders, leading to a split, wired shank. Such an exciting ring.
Accompanied by a sapphire report from Gemmological Certification Services (GCS) stating the sapphire shows no indication of heating, and is Madagascan in origin.
Cut – Octagonal cut sapphire and old mine cut diamonds.
Colour – The diamonds are H to I.
Clarity – The sapphire is loupe clean. The diamonds are SI1 to SI2; all are clean to the eye.
Carat – The sapphire is a known 5.18 carat, with approximately 1.80 carat of diamonds.
Circa – 1970.
Size – R (UK) or 8 5/8 (US). Complimentary sizing is available, can go up or down.
Measurements – The sapphire is approximately 9.5 x 7.9mm. The head of the ring is 28.5 x 23.8mm.
Metal – 14k gold. Tested.