i bought a ring about 3 years ago to give it to my girlfriend but i did not do it yet she is 1.70 tall and about 130lbs size ring 7 and the ring i have for her is a .72 round color e si with side stones totaling .53 in white gold 18kt....will this ring be good enough or should i get something bigger ...planning to propose in about 10 days ......Please help.....