Is 10K gold good for a chain this heavy?

10K gold is 41.7% gold alloyed with harder metals, so it holds up well to daily wear and resists scratching better than 14K or 18K. It looks paler and less yellow than higher-karat gold, which some buyers notice next to 14K pieces.

How much does the 20-inch version weigh?

At about 6.81 grams per inch, a 20-inch chain comes to roughly 136 grams. That is heavy enough to feel substantial and to pull if you are not used to big chains.

Is the chain really 10mm wide?

The industry width is 10mm, but diamond-cut faceting brings the actual width to about 8.1 to 10mm depending on where you measure. Expect it to look slightly narrower than a plain 10mm rope.

Will the lobster claw clasp hold a chain this heavy?

A lobster claw is secure when sized properly, but on a 136-gram chain the clasp and the jump ring take real strain. Check the clasp size and consider having a jeweler reinforce the ends.

When is the price lowest?

Gold chains track the spot price of gold, so the best time to buy is when gold prices dip. Holiday sales and coupon events at Amazon are the other windows worth watching.