18ct gold and diamond 'Trinity' ring, Cartier, comprising three…
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18ct gold and diamond 'Trinity' ring, Cartier, comprising three entwined 3.25 mm wide flat bands, each bead-set with a continuous line of brilliant-cut diamonds, the diamonds together weighing approximately 1.80 carats, size G, signed Cartier, maker's marks, French assay marks, numbered 299429. Accompanied by a Cartier box. Provenance: important jewels , Smith & Singer (trading as Sotheby's Australia), Sydney, 29 August 2017, lot 54, illustrated. Private collection, Sydney, acquired from the above
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- Assay / Assayed - Assaying is the testing of a metal, most commonly silver and gold to determine its ingredients and quality. In Britain, once an item of silver or gold has been assayed, a mark is stamped on it, certifying its purity. Known as hallmark, it derives its name from the Guild Hall of the Goldsmiths' Company, who recieved its Charter in 1327 giving it the power to assay and mark articles of gold and silver.
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