Rare Old Vintage Blue Ocean Crystal Stone Ring Charm Gold Ring Vintage Blue Crystal Ring Vintage Blue Ring Antique Art Glass Cocktail Etsy Vintage Style Ballerina Ring, Blue Crystal Ring, Art Deco Engagement Blue Rings Vintage 1950s Blue Ring Classic Vintage Rings. Last Chance to Shop Up to 70% OFF! At Mila & Rose were announcing that we're closing our collection. Before we close, we want to offer you the chance to shop our entire range of beautiful jewellery at incredible discounts! Enjoy up to 70% OFF OUR ENTIRE COLLECTION! Only a few pieces left! Once they're gone, theyll be removed from the website. Size UK EU Circumference (mm) Diameter (mm) 5 J 49. 3 49. 3 15. 7 6 L 51. 9 51. 9 16. 5 7 N 54. 4 54. 4 17. 3 8 P 57 57 18. 1 9 R 59. 5 59. 5 18. 9 10 T 62. 1 62. 1 19. 8 11 V 64. 6 64. 6 20. 6