The 1920s Double Onyx Cufflinks, weighing 10.3 grams, are crafted in 18k white gold featuring double onyx design with full cut diamonds (approximately 1.30 carats) creating striking contrast against the deep black onyx stones. This sophisticated pair is stamped "750" with maker's mark, and remains in excellent condition, showcasing the timeless allure and vintage craftsmanship characteristic of 1920s luxury menswear accessories with their refined versatility and stunning display of light and radiance from the meticulously set diamonds. Very good conditions. All our diamonds and colored gemstones are naturally earth-mined. Any synthetic (lab-grown) stones will be clearly indicated in the description. Upon Request, Auction House may provide an appraisal. This will carry an additional cost. Appraisals are made by our in house GIA certified Gemologist.