These are Grade A, genuine Turquoise crystals! Turquoise can also be used as the birthstone for December. They're perfect for any time of year, honestly! These Swarovski® crystals are absolutely stunning!! Beautiful translucent teal light blue. This ring would be perfect for a December Birthday gift, anniversary gifts, surprise, or as a treat for yourself. These gorgeous Turquoise crystals measure approximately 6 mm each. They are wrapped in German Style wire and can be made in any size, from 2-13, whole or half sizes.