Gatsby Jewellery Ltd has dated this piece to the 1920s.
The stone is rubover set in yellow gold and flanked by a pair of high white and internally clean old mine cut diamonds, also in rubover settings, leading to slim and tapering yellow gold shank.
Accompanied by a report from Gemmological Certification Services (GCS) stating the sapphire shows no indication of heating, and is Sri Lankan (Ceylon) in origin.
Cut:? Oval cabochon sapphire and old mine cut diamonds.
Colour:? The diamonds are VS1 to VS2.
Clarity:? The diamonds are G to H.
Carat:? The sapphire is 6.35 carat. The diamonds are approximately 0.15 carat each.
Circa:? 1920.
Size:? N (UK) or 6.5 (US). Free sizing available.
Measurements:? The sapphire is 10.37 x 8.65mm. From the outer edge of one diamond to the other is 16.9mm. The ring is 11.3mm at the widest point and sits 7.00mm from the finger.
Weight:? 4.17 grams.
Metal:? 18k yellow gold. Tested with a Niton DXL Precious Metal Analyzer.
Item # 4121112S039
Gatsby Jewellery Ltd has dated this piece to the 1920s.
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
Art Deco 6.35 Carat Ceylon Star Sapphire & Old Cut Diamond Ring, Circa 1920
