An 18x13mm oval ruby zoisite with 0.19 carats of round white zircon in 18K yellow gold over sterling silver ring measuring approximately 0.64 inches long by 0.76 inches wide - the ruby zoisite ring in warm gold. Ruby zoisite is a natural mineral combination where deep green zoisite and opaque ruby red appear in the same stone, creating a striking multi-color composition unique to this geological formation. The two colors - green and red - create a warm-cool dialogue within a single stone. Not sizeable.