YURMAN STERLING ONYX & DIAMOND WHEATON RING: David Yurman Wheaton Ring in sterling silver, diamonds, and black faceted onyx. The raised prong-set stone measures 20 millimeters by 15 millimeters and has a strip of nine bezel-set diamonds on each 15-millimeter side with a total carat weight of 0.13. The band features five sterling-silver, twisted cables that taper to a solid, narrow bottom. Size 8. Weighs 13.5 grams.