Sapphire and Diamond Flanked Solitaire Ring, Circa 1950, English

Fancy intense yellow diamond flanked solitaire ring. Set to centre with a cushion shape old mine natural fancy intense yellow diamond, SI1 clarity, with a weight of 2.39 carats, in a...

Golconda type IIa diamond flanked solitaire ring. Set to centre with a Golconda type IIa octagonal emerald-cut diamond, D colour, VVS1 clarity, with a weight of 2.36 carats, in an open back claw setting, flanked by two tapered baguette cut diamonds in open back rubover settings with a combined approximate weight of 0.45 carats. The total approximate diamond weight is 2.81 carats, to an impressive flanked solitaire design featuring curving corner claws, a linear pierced gallery and angular open backholing, leading to raised shoulders and flowing through to a solid D-shape shank. Tested platinum, circa 1950, accompanied by Gemological Institute of America (GIA) report #2225798012. Diamonds are classified by scientists into two main types, depending on the presence of nitrogen in the diamond's chemical makeup. Type II diamonds contain little to no such impurities. This type is further subdivided into two groups, ‘a’ and ‘b’, both of which make up less than two percent of all gem quality diamonds. Type IIa diamonds are extremely rare, and the most pure of all diamonds, and consequently exhibit superior transparency. This type was first identified as coming out of India, namely the Golconda region. Some of the most famous diamonds in the world...

Vintage diamond flanked solitaire ring. Set to centre with an octagonal emerald-cut diamond, F colour, VVS2 clarity, with a weight of 2....

Old cut diamond flanked solitaire ring. Set to centre with a round old cut diamond, G colour, SI1 clarity, with a weight of 2.24 carats, in an open back claw setting, flanked by six ...

This colourful c.1950s take on a classic cluster design centres a bright blue sapphire within a grain-set halo of 0.50ct round brilliant cut diamonds. In classic two-tone vintage st...

A stunning, fine and impressive antique 1.29 carat diamond and contemporary platinum engagement ring; part of our diverse diamond engagement ring collections. This stunning, fine an...

An impressive 0.63 carat diamond and platinum solitaire style engagement ring; part of our diverse antique jewelry and estate jewelry collections. This fine and impressive antique diamond solitaire ring has been crafted in platinum. The pierced decorated eight claw setting displays a 0.63Ct Old European round cut diamond. The elevated, pierced decorated and tapering ring shoulders integrate with the claw setting and blend seamlessly with the plain ring shank. The ring is hallmarked to the interior of the shank with the mark for platinum (PLAT), however this is partially worn in-keeping with age and location. This antique 1930s engagement ring...

Dating to the Edwardian era, this solitaire features an old cushion cut as the centre of attention. It weighs 0.56 carat and has been estimated as H in colour and SI1 in clarity. The...