Very rare sculptural cocktail ring by Gilbert Albert, Geneva, 1960s, crafted in solid 18K yellow gold with organic textured patterns and polished finish. Centered by a four-prong set vivid green rectangular tourmaline (11 x 9 x 5.5 mm, approx. 5.18 ct), accented with three round brilliant diamonds (0.27 ct, F, VS) and five natural multi-color pearls (3 mm). Measures 23 x 20 mm (0.91 x 0.79 in), rises 15 mm, size 7.75 (resizable), weighing 13.40 grams. Stamped with Swiss marks, maker’s mark “GA,” and signed “GILBERT ALBERT .750 GA.” Unique modernist design. 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 Ring resizing or/and appraisal. This will carry an additional cost. Appraisals are made by our in house GIA certified Gemologist.