Rose Quartz. A modern quartz ring 18ct. Erotic, Wild and full of pleasure. An enchanting ring set with a large Rose Quartz, its smooth polished surfaces, mounted in a bold seductive Pink Gold mount that intensifies the Gems romantic charm with is watery Pink hues. Rose Quartz 12.71cts. Available in 18ct yellow gold or 18ct white gold. 16 x13.5 mm.