Fabulous geometric collar made in England of 9k yellow gold. Well constructed articulated links stretch all the way around the necklace. The chevron shaped points in the front measure approximately .75" at their widest. At their thinnest, they measure .25" and at the back of the necklace, where there is no chevron, the linked portion is 3/16" wide. The necklace measures approximately 17.5" in length, but can be extended to 18" using the clasp. The clasp is secure and is marked "B&S" and has the hallmarks for Birmingham England, 9k and 1978. It is in great condition and is very nicely made.