This necklace is very nice - but it is very heavy! My husband loves it! I ordered the 20", not knowing exactly what size to get (he's an average-sized man). At 20", it was just long enough that it swings when he bends over. This wouldn't be a problem with standard jewelry, but due to the sheer weight of this necklace, it had to be shortened. We took it to a local jeweler and had them take out 3 links to bring it to 18" (the links are attached with pins like a watchband). Now it's perfect.