Get a look of precision in perfect, round-cut studs. Royalty Inspired by Effy Collection earrings feature sapphire gemstones (5/8 ct. t.w.) surrounded in sparkling petals of round-cut diamond (1/4 ct. t.w.). Crafted in 14k gold. Approximate diameter: 1/4 inch. Almost all gemstones and blue and black diamonds have been treated to enhance their beauty and require special care. All gemstone carat weights (ct. t.w.), if mentioned, are approximate; variance may be .05 carat.