The 1960s Mid-Century Ring, weighing 21.8 grams, is crafted in 18k yellow gold featuring a center emerald cut citrine (approximately 3.80 carats), four cabochon tanzanite (approximately 2.60 carats), and four peridots (approximately 3.00 carats) creating a vibrant multi-gemstone composition. This striking piece is currently size 5 1/2 (sizable) with 0.73 inch width, stamped "750", and remains in excellent condition, showcasing the bold artistic expression and creative innovation characteristic of mid-century design with its captivating contrast of warm golden citrine, deep velvety blue tanzanites, and refreshing green peridot accents. GIA REPORT # 5221979187. 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.