1.15 Emerald Cut Sapphire Engagement Ring in Platinum1. 15 Emerald Cut Sapphire Engagement Ring in Platinum. This modern engagement ring features a 1. 15 carat emerald cut sapphire with . 78 carats of diamond accents and is set in platinum. The ring is rather wide at about 7 mm, with the accent stones remaining the same width as the bezel set center stone. The shoulders consist of three rows of accent diamonds separated by lines of milgrain detail, with the central row being channel set baguettes and