crasru|1311704001|2977154 said:The ones I dealt with were mostly OK... I'd say there in fact is no difference between Thai and non-Thai vendors. I bought stones that I have serious questions about equally from US vendors and from Thai vendors. Likewise, I bought good stones from US, UK and Thai vendors. Usually returns to Thailand are not a problem. One recent purchase I have not received. I am going to give the vendor a couple of days and then contact him. So far his service has been excellent so I expect him to be helpful. But it happened only once.
Toolhaus is a very good way of finding more about a vendor's reputation.
One thing - check if a vendor is willing to provide a certificate from a reputable lab (with photos). A photo is very important - I recently bought cheap spinels of a wonderful cut. The certificate that was provided came from a known lab but without a photo, there is no way of knowing if the spinel "matches" the certificate... Somewhere on the PS there is a thread about different certificates and how they should look (I think it was started by Loving Diamonds).