These earrings are made entirely of 18K gold. Stamped K18, not plated. These earrings are designed in homage to a certain high-end jeweler. They were custom-made last year by a jewelry designer (96,000 yen + tax). The highest grade moissanite is 4mm brilliant cut. The total carat weight for both ears is approximately 0.5 carats. Since they are 18K gold, you can wear them all the time, and they are safe for those with metal allergies and for use in hot springs. Moissanite has a brilliant sparkle, so with stones of this size, the earrings are elegant and understated, yet still have a strong presence. Moissanite is the most brilliant gemstone in the world, with approximately 2.5 times the brilliance of natural diamonds. It has almost the same hardness as a diamond and is very durable. 【Material】 Moissanite 【Color】 D Color 【Grade】 VVS1 【Cut】 Excellent Moissanite Earrings 4mm x 2 Setting: K18 Solitaire Tiffany Tiffany Stud Earrings