white gold ring with diamond and zircon

An 18 carat white gold ring set with a large, cushion cut copper brown Zircon (14.64 carat) with a carré cut diamond on each side, all flush set, signed: Burch made by Trudel, Switzerland, circa 1970.

weight: 22.15 grams
size: 17.5- mm / 7 US
width: 4 – 1.8 mm