Roberto CoinDiamond Initial Bangle, GoldDetailsPave white diamonds spell a letter of your choosing on medallion center, approx. 1/2" diameter. 18-karat yellow gold bracelet, approx. 7 1/2" circumference. Total carat weights vary by letter. 0. 03 total carat weight: F, I, L, T. 0. 04 total carat weight: A, C, E, J, K, P, Q, V, Y. 0. 05 total carat weight: B, D, G, H, M, N, R, S, U, W, X, Z. 0. 06 total carat weight: O. Signature hidden ruby dedicated as a secret gift of good wishes from the designer. Hook clasp. Made in Italy. Designer About Roberto Coin: Since founding his own company in 1977, Roberto Coin has rightfully gained fame as a tireless innovator, most notably for pioneering the use of three-color gold in 1978. His jewelry seems to capture the fluidity of his amphibious hometown, Venice-forms and shapes meld, creating a sense of wholeness, the distinction between the timeless and the modern ever-blurred. Perpetually reinventing his personal style, Roberto Coin produces more than 600 unique jewelry models annually. Each piece includes a hidden 0. 3 carat ruby, a signature of the designer.