It is centered with a beautiful GIA-certified oval cut Persian Turquoise of approximately 51.53 carats, measuring 32.75 x 19.80 x 10.90 mm, bezel set. This piece is crafted in solid fine 18K yellow gold with some elegant textured finishes to the sides. Its large oval cocktail design is classic of its time and features a geometric motif accented with lovely Diamond wavy-line patterns. The 30 genuine round cut Diamonds are approximately 1.85cttw, H-I color, VS1-VS2 clarity, micro-prong set. This large timeless Vintage ring is sizable and remains in excellent condition! Total Weight: 31.8 Grams. Top Measures: 25mm x 35mm, 16mm high. Ring Size: Between 6 3/4 - 7. GIA Report Number: 6213280507 (sizable).