Colorful Diamonds in the Sky. The Drilled Austrian Crystal Diamonds on a 925 Sterling Silver hook Earrings. The stones have extra facets to outshine the real Gem Stone. These are 8mm stones with a total carat wt. of 6.5 carats for a pair of earrings. We selected this size to keep the look real, as a Gemstones any larger size than 8 mm may look more as stones made from Glass.You can select these from sweet colors like: PINK DIAMOND, BLUE SAPPHIRE, RED RUBY, and CHAMPAGNE DIAMOND & CLEAR DIAMOND.It comes with a Ltd. Lifetime Warranty, in a Gift Pouch.