There's nothing like a Gold, Georgian chain. The long guard chain's are lovely, but they do tend to know up, and of course, can not be worn with everything. I love the fact that this one is just under 18 inches long. It has the beauty of the long guard links, with the handmade chain, but it's much more versatile and can be worn with an open neck, scooped neck, or a sweater. At first I thought the garnet clasp was newer than the chain, which is circa 1790, but now, upon close inspection of the clasp, I believe it to be all original. Georgian claps are unique in the way they fit. Everything must be lined up just perfectly, and then they fit very tightly. I think these chains were always meant to be 18 carat, but everyone I've ever tested with my digital gold tester tests 14 carat. That's because, in Georgian times, no one had a digital tester, and often, they mixed the gold. Anyway, this is a lovely, versatile piece. The chain itself is 1/8 of an inch thick with lovely, interlocking links , and the garnet is a lovely, faceted, jewel. This, circa 1790's piece, weighs 12.8 grams.