VTG I Wrist Wear 1980s ID Bracelet Genuine Diamond

Here is an old 1980s ID bracelet w/a genuine diamond! This item has been warehoused for many years following a store closure. Wrist Wear was a TM of the Lang Jewelry Company from the early 1980s, canceled by 1990, so that dates the bracelet. "WW" hallmark, photo 3, approx. measurements, photos 4-7. Closure/sister hook, photos 8-9. Composition unknown. Pretty 3-strand chain. Bracelet does NOT come w/box (it didn't fare well). Last 2 photos show wear on side & area of discoloration near diamond.