Large Amethyst Gemstone And Diamond Halo White Gold RingLadies 18kt white gold Amethyst and diamond halo set ring featuring a large cushion cut amethyst gemstone measuring 10. 95mm x 10. 95mm; encircled by a halo of round brilliant cut diamonds 20 x 0. 18ct Tw, SI in clarity and G H in colour. Current size of this ring is 6 3 4. This ring can be re sized.. Good Condition. Accompanied by a van Rijk appraisal certificate