Roberto CoinDiamond Love Letter NecklaceDetails18-karat white gold; 16-18 chains. Pave diamonds; total carat weight will vary by letter. A, D, E, F, G, H, O, R, U, X ,Z: 0. 06 carats. B, M, Q, W: 0. 08 carats. C, K, P, S, V: 0. 05 carats. I and L: 0. 03 carats. J, T, Y: 0. 04 carats. N: 0. 07 carats. Lobster clasp. 16L. 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.