Center-diamond: 1.40 cts, emerald cut, D color/VVS1 clarity ; Excellent cut and polish,7.8mm x5.3mm. Elegant and pretty from any angle. Every section can reflect a brilliant light. UNA&CO unique technology to make it feel like 100% platinum.The material used are 30% platinum & 70% silver,which are anti-allergic,non-tarnishable and antioxidant. A selection of lab grown diamonds, more shiny, stronger, perfect cut, glittering and translucent, which is irresistible.You want to take it home the first time you see it! The ring surface is smooth and comfortable for daily wear,will not scratch or hurt your finger.