Gatsby Jewellery Ltd has dated this piece to the 1900s.
The sapphire is surrounded by 16 eight-cut diamonds in a silver coronet setting, which sits on a slender 18k yellow gold mount with ornate split shoulders.
Accompanied by a report from Gemmological Certification Services (GCS) stating the sapphire shows no indication of heating, and is American (Montana) in origin.
Cut:? The sapphire is an oval, with eight-cut diamonds.
Colour:? The diamonds are J to K.
Clarity:? The sapphire has visible inclusions. The diamonds are SI1 to SI2.
Carat:? The sapphires is approximately 4.70 carat, with approximately 0.16 carat of diamonds.
Circa:? 1905.
Size:? N 1/2 (UK) or 6.75 (US). Free sizing available.
Measurements:? The sapphire is approximately 11.0 x 8.9mm and sits 6.4mm from the finger.
Weight:? 5.29 grams.
Metal:? 18k yellow gold. The diamond and the sapphire are set in silver. Tested with a Niton DXL Precious Metal Analyzer.
Item # 1112113S269
Gatsby Jewellery Ltd has dated this piece to the 1900s.
Gatsby jewellery are a husband and wife team who have years of knowledge and experience in dealing in fine antique jewellery.
You can view the stock and full dealer information on the Gatsby Jewellery Ltd Profile Page
Edwardian 4.70 Carat Montana Sapphire & Diamond Cluster Ring, Circa 1905
