Condition: Extremely good condition. Confirmed as new old stock (NOS), this genuinely vintage ring has remained unworn since the 1970s. Country of origin: unknown Style: Modernist, with an asymmetrical, flowing white gold composition in which the single diamond forms a restrained accent. Period: circa 1970 Material: 18K white gold, touchstone tested. Diamond: One round brilliant-cut diamond, with an estimated weight of 0.17 carats, F–G colour and SI clarity. We screened the diamond in this ring using the EXA Natural Diamond Detector developed by Magilabs; the test returned a natural-diamond result. To preserve the integrity of the ring and its setting, the diamond was assessed while mounted and was not removed for weighing or grading; stated weight, colour and clarity are therefore approximate. Traditional gemstone associations: Diamonds are traditionally associated with April and with enduring love and strength. Hallmarks: Marked “750”, indicating 18-carat gold. Dimensions: 10.7 mm (0.42 in) width across the ring head. See photograph with a millimetre scale. Weight: 3.7 g Ring size: Continental EU 53; inner diameter 16.9 mm; approximately US 6½ and UK M½. Resizing: This ring can normally be resized free of charge. An additional charge may apply for very substantial size adjustments; please let us know the required size so that we can confirm. Adin Reference Nº: 26232-00179