This is a gorgeous old Mexico City open backed repousse necklace. One of the best that I have seen in some time. The turquoise has beautiful matrix and has warmed with time. It lays perfectly when worn. The length is 17in. wearable and can hook into other links to make smaller. The largest floret is 1.25in. in diameter and the other 8 are .75in. in diameter. This demi weighs 28.5 grams with the open backed repousse crafted of heavy silver. The oldest Mexico City pieces are seldom hallmarked and this one follows suit. No damage of any kind and it sports a natural patina. You will fall in love with this jewel, just LOOK AT THAT NECKLACE!