0.9 carat, 1 carat and 1.1 carat - Is it true that buying diamond of unrounded weight is most economical?

I had my diamond ring appraised at $5,000, but when I tried to sell it, a number of different jewelers only offered me $500-$900! Are they trying to rip me off?

I went to the pawn shop to sell my diamond ring and got a ridiculous price offer for it! Could someone please explain why there is such discrepancy in prices?

Is the diamond district in New York a good place to buy diamonds?

What is a Carbonado rough diamond?

How long does it take for a diamond to form?

I want to sell my old diamond engagement ring. How do I sell it without getting ripped off?

Is it true that Tiffany diamonds are polished unprofessionally?

How do I go about buying rough diamond jewelry?

Should I sell my diamond ring on consignment? What are the pros and cons of this approach?