A 2.67 carat square cushion Russian chrome diopside in 18K yellow gold over sterling silver solitaire stud earrings measuring approximately 0.28 inches long by 0.28 inches wide with push backings - the green gemstone stud earring for those who appreciate genuine gemological quality in a color that emerald cannot approach at this price. Russian chrome diopside from the Siberian deposits is known for its extraordinary, saturated green - a vivid, forest-to-emerald green that results from chromium coloring, the same chromophore responsible for emerald's green. The square cushion cut maximizes the stone's color depth. At 2.67 carats total in 18K gold over sterling with push backings, these studs are the fine jewelry alternative to an emerald stud.