4 grams of G750, plus labor costs, is about 1000 yuan. Since the drilling is not big, it will be fine within 500. If it is as small as 1, it will cost 50 at most.

Diamond rings can be worn for a long time. No problem. My diamond ring has been worn for a long time. G750 is very stable and has good hardness. No scruples. After a long time, it will inevitably wear out and look neither new nor bright. If you wash it with ultrasound or go to a jewelry store and polish it again, it will be brand-new.