Gem Stone King 300 Ctw Amethyst Tumble String 20 Inch Necklace with Clasp 2 Inch Extender CARAT TOTAL WEIGHT - 300 CT MEASUREMENT - 20 Inch 100% Natural Purple Amethyst Necklace with with Clasp and 2 Inch Extender. FULLY REFUNDABLE: in the (very) unlikely event that you aren't satisfied, simply return for a 100% refund! TOTAL SATISFACTION GUARANTEE - When you order today, you're protected. The item comes with a No questions asked money back guarantee combined with world class customer service. Free Return and Refund and Lifetime Warranty and Free Second Day Delivery for Amazon Prime! Gemstones may have been treated to improve their appearance or durability and may require special care.