Gemstones: 1 Piece Shimmering Blue-Green Faux Opal, Curved Tear Drop Shape 20 x 8 mm, Rich Blue and Green Hues. Pendant: 4.20 grams, Pure Sterling Silver with .925 stamp, Pendant features exceptional Design, Craftsmanship and Rhodium finishing. Perfect gift for Mothers Day, Birthdays, Valentines Day, Graduation, Christmas or just about any other occasion. . Includes an 18 inch Sterling Silver Box Chain.