Old Mine Cushion Cut Halo Diamond Engagement Ring: . . Diamond Details Shape Old Mine Cushion Cut Carat Weight 1. 70 CT ( 0. 10 CT) Dimension 7. 45*7. 45 MM ( 0. 05 MM) Color Clarity EF_VS Diamond Details Shape Round Cut Carat Weight 0. 30 TCW ( 0. 10 CT) Dimension 1. 20 To 1. 90 MM ( 0. 10 MM) Color Clarity EF_VS Ring Details Ring Width 1. 70 MM [Customization Possible] Ring Depth 1. 70 MM [Customization Possible] Type Lab Grown Diamond Metal Purity Silver (925,935), Solid Gold (10KT, 14KT, 18KT);