Gemstones: 2 Pieces Shimmering Blue-Green Faux Opal, Marquise Shape, 20 x 10 mm, Rich Blue and Green Hues. Earrings: 7.10 grams, Pure Sterling Silver with .925 stamp, Earrings Feature Fishhook Backs, Exceptional Design, Craftsmanship and Beautiful Rhodium finishing. Perfect gift for Mothers Day, Birthdays, Valentines Day, Graduation, Christmas or just about any other occasion.