Antique 0.75ctw French-Cut Diamond, 0.30ct Genuine Emerald, Blue & White Enamel Modified Brooch on Tiffany & Co 18K Band - This stunning piece is made of solid 18K yellow gold, and is made of an antique French brooch that has been converted to a ring that was then set on a solid 18K yellow gold Tiffany & Co. Band. The brooch piece that has been mounted on the ring has approximately 0.75ctw genuine French-cut diamonds, a 0.30ct genuine near flawless emerald and is finished with a pearl white and royal blue enamel. The white enamel portions are embelished with 24K gold gilt accents that truly finish the piece. The Tiffany Band is a vintage Tiffany & Co. band that has an inverted center row. The center row goes inward and is accented with diamond cut accents, making this piece one of a kind. The band measures: 3.5mm wide, and is a ring size 5. The table of the ring (across the top) measures: 1.5" in diameter.(Weighs: 17.7 Grams)