.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 detail.