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The GradRat comes in the following options of metals and finishes:
We recommend you go to a jewerely store to truly notice the difference between the karat values, since computer screen don't show the diffences clearly.

Metal	Grade	Antique	Natural
Yellow Gold	10K		Ring available Picture not available
	14K	Ring available Picture not available
	18K		Ring available Picture not available
White Gold	10K	Ring available Picture not available
	14K		Ring available Picture not available
	18K	Ring available Picture not available
Celestrium	n/a		Ring not available

Please visit the sizes and pricing pages to fully identify the cost of your ring.

What does karat mean?

The karat tells you how much gold is in the ring. Because pure gold is too soft, all jewelery is made of an alloy of gold and other metals. For each of the karat values the amount of gold and alloys are as follows:

The alloys for the gold color are composed of the following metals:

What is "Celestrium"?

Celestrium is a special jeweler's Stainless Steel which can be molded to show the details of the GradRat. While not a precious metal, its finish resembles white gold and, because it is steel, is very long lasting.

Students sometimes buy two rings: a Celestrium ring for daily use and a gold ring for special ocassions.