展开Ships within 1 dayLovely, elegant tanzanite stud earrings in .925 sterling silver. The 2 sparkling natural tanzanite gemstones are heat treated and set in 4 prong basket setting with push backs (butterfly friction backs). The total carat weight of the earrings are 3/4 cttw. Gift box is included with purchase of these earrings.Stone Type - Natural TanzaniteMetal - 925 Sterling SilverGemstone Size - Round 4.1 MMGemstone Shape - RoundGemstone Carat Weight - 3/4 cttw (0.75 cttw)Vir Jewels Sterling Silver Stud Earrings For Female AdultBirthstone Month - DecemberNatural Tanzanites are heat treated to produce a range of hues between bluish-violet to violetish-blue. This is done through mild heating in the production process. Due to the permanent nature of this treatment the gemstones do not alter in quality, only in appearance.