Gatsby Jewellery Ltd has dated this piece to the 1920s.
The stone is rubover set in yellow gold and surround by 10 old mine cut diamond in a coronet settings, leading to a slim and tapering 18k yellow gold shank.
Accompanied by a sapphire report from The Gem & Pearl Laboratory stating the ruby shows no evidence of heating.
Cut: The ruby is slightly off round (oval). The diamonds are old mine cuts.
Colour: The diamonds range from H to I.
Clarity: The ruby is clean through a jeweller's loupe. The diamonds range from VS2 to SI2; all are clean to the naked eye.
Carat: The ruby is approximately 0.70 carat, with a total approximate diamond weight of 0.50 carat.
Circa: 1920.
Size: P 1/2 (UK) or 7.75 (US). Free sizing available.
Measurements: The ruby is approximately 5.75 x 5.5mm. The head of the ring is 10.2 x 10.1mm and sits 4.7mm from the finger.
Weight: 2.86 grams.
Metal: Stamped 18CT - indicating 18k yellow gold - and tested to confirm.
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 0.70 Carat Natural Ruby & Old Cut Diamond Cluster Ring, Circa 1920
