The Empress 4 Carat Asscher Inspired Laboratory Grown Diamond Alternative Cubic Zirconia Emerald Step Cut Three Stone Solitaire Engagement Ring features a 4 carat 9mm Asscher Cut inspired center stone with .75 carat 6x4mm each emerald step cut sides. Our Russian formula lab grown diamond simulant cubic zirconia asscher cut stones include 74 hand cut and hand polished facets for a look that is virtually indistinguishable from a genuine top quality diamond. This three stone ring includes a total carat weight of 5.5 carats. Our Asscher Inspired Empress Three Stone Rings are available in various size center stones that include 4 carat, 5.5 carat, 7 carat and a 8.5 carat with step cut emerald cut sides that are sized in proportion to the center stone. Available in your choice of 14k white gold, 14k yellow gold and luxurious platinum. For additional sizes not listed in the pull down menu, please call us directly at 1-866-942-6663 or visit us via live chat and speak with a knowledgeable representative.