T.F.
This is not Plano/Frisco but try Dallas Gold and Silver. NOT the Richardson or any other location..... We have done business with Dallas Gold and Silver for years dealing with silver/gold coins and currency. They are NOT a pawn shop. Well, I guess some people might use them in that manner but we are collectors so we buy.
I had some diamond earrings that were "chips", opal ring and a couple other small pieces. They bought them at a reasonable price.
After that, we bought some diamond earrings there at a fair price. We have bought a couple of chains. About 4 years later we took the earrings back in (WITH RECEIPT) and traded up. They inspected the earrings, then offered a price very comparable to what we paid and we agree to bought my current diamond studs. My earrings are now about 1 3/4 carat each. We are done trading up because I don't need them any bigger but we will go back when our 13 yr old daughter starts to re-do her collection.
We will also go back to check out the coins/currency they have to add to our collection.
We've always been pleased with them.
TF