This is a unique 2 piece set. The gold domed omega choker is 10K, Italy. It is 16″ long and 3 mm wide. The necklace is textured to flex Can be worn alone or with a pendant or slide, as the next item, that goes with the choker. This slide is slightly curved to go with the curve of the necklace. Across most of the front of the slide is a cluster of pave’ diamonds.  I’m sorry to say, that one of  the diamonds is missing in the front lower left, in the cluster. This set was wrapped for safe keeping and discovered when exposed to take measurements and photos. The description of this diamond slider piece is as follows: The diamonds are is enclosed with a wide ribbed band of gold as a setting and continues around to the back where the gold is crafted into an open weave. On the inside rim of this piece is stamped 14K #586 w/ makers mark. It measures 1/1/4″ long and 3/8″ wide. Total weight is 10.6 grams. This set is really beautiful and, as I have said, unique. Well taken care.