Aquamarine and diamond halo engagement ring 0. 42 carat total weight With a forever platinum finish THE RENEE COLLECTION The Renee Collection features exceptionally crafted diamond jewellery that honours the Mappin and Webb brand heritage and quality. Each piece has been inspired by traditional Art Deco pieces from the archive and executed with a modern twist for present-day appeal. FOR LIFE With 0. 42 carat total weight, intricate diamonds halo a central aquamarine gemstone and pave the engagement ring band. Set in platinum, this aquamarine and diamond halo engagement ring will last your entire lifetime, and for lifetimes to come.