Marquise diamond cluster ring, circa 1925.

René Boivin marquise diamond coronet cluster ring. Set to centre with a marquise shape old cut diamond in an open back grain setting, with an approximate weight of 1.00 carat, encircled by twenty two round eight cut diamonds in open back grain settings, with a combined weight of 0.22 carats, flanked further by three round eight cut diamonds in open back grain settings, six in total, with a combined weight of 0.06 carats. The total approximate diamond weight is 1.28 carats, to an impressive coronet cluster design featuring polished borders, an intricately pierced gallery and fancy open backholing, flanked by slightly raised shoulders that flow through to a concave shank. Tested platinum, makers mark...

Art Deco diamond cluster ring. Set to centre with a round old cut diamond, H colour, VS2 clarity, with an approximate weight of 2.01 cara...

Vintage marquise diamond cluster ring. Set to centre with a marquise shape old cut diamond, F colour, VS2 clarity, with a weight of 2.39 carats in an open back claw setting, encircle...

Art Deco diamond cluster ring. Vertically set with two round old cut diamonds in open back rubover settings with a combined weight of 1.4...

Dating to the 1930s, this stunning cluster ring is all handmade. The centre diamond is a transitional cut and weighs 0.91 carat. It has been estimated as a G in colour and VS1 in cla...

Here we have a beautiful diamond cluster ring crafted at a time when the Art Deco style was at the height of design. A round faceted old European cut diamond sits slightly risen in a...

Here we have a delightful three-stone diamond ring expertly paying homage to the Art Deco style. This vintage platinum piece features three marquise-cut diamonds with the centre diam...

The late Art Deco years produced this stunning bombé style ring designed around a fiery 0.70 carat old cut diamond. The ring’s millegrain-edged c.1930s pierced platinum setting glit...