Testing for what is a diamond is usually free. Valuation opinions usually come with a fee, as does identifying what it is if it turns out NOT to be a diamond.diamondloveaffair|1370220502|3457863 said:how much is the price for this piece is a good way to start out. Pink diamonds don't come cheap. When they do, they are either treated, fake, or the "industrial" quality stuff you see usually on ebay.