How do I buy diamond engagement rings online in Japan?
Pretty easy. , I used to purchase some wonderful earrings from https://pierrejewellery.jp and should say my DW was very delighted. You will receive the jewelry in a beautiful gift box. You see, she always preferred gifts that I have put some effort to make, not just some randomly bought online things. So I ordered by these guys and put it on our way to the bedroom. She simply loved it!
I know nothing about diamond purchase except it should always be in person. And if you're not an expert yourself, bring one along for verification. In addition, it's very risky to buy precious substances from a a foreign source, moreso than from a domestic source. I'm not sure if there's something like a Better Business Bureau for reports and consulting on trades of your sort.