0.30 carat is too small for a wedding ring. Please image that when you walk with your fianc'e during the ceremony, no one can actually see the stone on the ring. So, what's the purpose of buying the wedding ring? It's to show the "forever" love!!!
6 claws mounting method was invented by Tiffany and it's to show the shining beauty of the diamond. The method effectively secure the diamond .
Tiffany is not the only choice in the market. Buying Tiffany's is like buyig its brand name. The average grade of its diamond is about G color and vvs1 clarity. The quality is not different from others. If you don't have enough budget, don't buy it. You can buy a ring with bigger stone when you choose to buy other brands.