Beautiful, Large Simulated Square Cut Baguette Pale Blue to Green Aquamarine Gemstone Coctail Ring. Measurements of the Gemstone: 18mm by 16mm. Set in Solid Sterling Silver with a 18k White Gold Finish. Sizes available in USA: 5, 6, 7, 8, 9, 10, 11, 12 & 13. UK Sizes Available: J1/2, L1,2, N1/2, O, P1/2, Q, R1/2, S etc.. This Ring is Also Available in Other Colours! Please see my other listings or message me for more info. Please see my other listings. If you have any reason to be dissatisfied with our product(s). NO QUESTION ASKED, Please return this item(s) in its original condition?? Please give us the opportunity to resolve any problem. Your concerns you might have, and will try our best to resolve any?????? Thank you for shopping with John Daniel Jewellery.