Vintage Navajo necklace by renowned silversmith Tommy Singer (1940–2014), signed on the original "T. Singer" hang tag at the clasp.
The necklace is graduated, with pink and peach shell heishi discs. It is accented with four hand-stamped sterling barrel beads, deep blue lapis rounds, black onyx, turquoise, and purple and red-brown stones. Small sterling saucer spacers sit between them. Southwest cone ends and a hook clasp finish it off.

The jump ring that attaches the makers Hallmark is not sterling but the silver with Hallmark is sterling along with barrels, cones, and hook.