A 4.38 carat rectangular octagonal and 0.68 carat trillion green onyx 18K yellow gold over sterling silver ring measuring approximately 0.98 inches long by 0.51 inches wide - the green onyx ring where two stone shapes - rectangular octagonal and trillion - create a multi-stone arrangement with visual variety. The rectangular octagonal provides the primary stone presence; the trillion adds a pointed accent. Deep, consistent green onyx in warm gold. Not sizeable. The green stone ring for those who want strong, reliable color.