Bidspirit auction | 18K Yellow Gold Ametrine and

18K Yellow Gold Ametrine and Diamond Pendant - An 18 karat yellow gold pendant featuring a center emerald-cut bicolored quartz (ametrine) and diamond accents. The primary gemstone is a natural bicolored quartz weighing 8.31 carats, displaying distinct color zoning from deep violet-purple to golden yellow. The ametrine is secured in a four-prong open-back gallery setting. The bail is comprised of a triangular cluster containing three round brilliant-cut colorless diamonds with a total weight of 0.24 carats. The reverse of the yellow gold frame is incised with the hallmarks 18K, 8.31, and 0.24. This item is accompanied by a Certificate of Gem Identification from the Noble Gem Grading Laboratory in Osaka, Japan, report number 77259. Weight: 3.8 grams Ametrine dimensions: 10.10 mm x 15.01 mm x 6.63 mm Overall length: 2.2 cm.