karat

It is now on the market as kunzite, and a cut stone of one karat in weight sells for fifty dollars and more.

It's like a fellow handing out a twenty-four karat gold bar to a rube by mistake, under the impression it only looks like one.

There could be no shadow of doubt as to the genuineness of the claim that the trophy was of eighteen-karat gold.

Selim bought her last winter for a ten karat ruby and a pint of sapphires.

During the past five years, when the product in the Congo fields has grown steadily, not a single karat has been stolen.