.68 Emerald Cut Diamond Engagement Ring w/ Sapphires. 68 Emerald Cut Diamond Engagement Ring w Sapphires. This modern engagement ring features a . 68 carat emerald cut diamond with . 75 carats of sapphire accents and another . 25 carats of accent diamonds set in platinum. The center diamond is bezel set with fine milgrain detail and surrounded by a lovely halo of French cut sapphires which are channel set. Along the shoulders are Asscher cut diamonds that are channel set and bordered with milgrain