Late Art Deco 1.08ct Diamond Solitaire Engagement Ring, c.1940s

With an impressive emerald cut diamond at its heart, this beautiful solitaire ring dates to the 1920s. The central diamond is 3.29 carat in weight with a colour of J to K and clarity...

A beautiful emerald cut diamond glitters in this Art Deco engagement ring. The diamond is 0.92 carat and is of high quality with a colour of F and clarity of VS2. The central stone h...

With a stunning emerald cut diamond at its heart, this awe inspiring piece dates to the height of the 1920s. Weighing 7.60ct, the diamond has been graded by IGI as an I to J in colou...

This stunning Vintage solitaire ring features a beautiful 1.55 carat emerald cut diamond at it’s centre. The diamond is of excellent quality and comes fully certified by GIA, with a ...

Art Deco flanked solitaire diamond ring. Set to centre with a single rectangular emerald-cut diamond, H colour, VVS1 clarity with an approximate weig...

Centering an Asscher cut diamond weighing 1.45 carats H color with VS2 clarity - set with wide prongs in basket With a decorously pierced profile Flanked by cathedral shoulders Notch...

A stunning, fine and impressive antique 2.38 carat emerald cut diamond solitaire ring in platinum; part of our antique engagement ring collections. This stunning, fine and impressi...

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...