David Yurman DY Mercer® Color Stone Multi Row Ring Sterling Silver with 18K Yellow Gold, Blue Topaz and DiamondsIn a nod to David Yurmans early sculptural practice, DY Mercer takes its name from downtown New York City, home to Davids first studio. Cushion and oval shaped gemstones are cut with light reflecting facets to unlock their vibrant inner hues, fusing sculptural form and high impact color. Sterling silver with 18 karat yellow gold Sky blue topaz, 0. 90 total carat weight Hampton blue topaz, 1. 18 total carat weight Pav set diamonds, 0. 25 total carat