FOR CENTRE STONE 0.50 ct: Ring Width: 8.3 mm FOR CENTRE STONE 1.00 ct: Ring Width: 9.6 mm FOR CENTRE STONE 1.50 ct: Ring Width: 10.8 mm Experience bold elegance with the Diana Marquise Ring from Miraki Jewels. Featuring a stunning lab grown marquise diamond, this ring blends timeless sophistication with sustainable luxury.