NEW Black onyx sterling silver 8 inch bracelet

This is a brand new bracelet without its original tags that came from a purchase of vintage dead stock inventory that originated from The Nature Company stores that closed in the 90s. These black stones are most likely black onyx , however I am not 100% sure. These are not glass or CZ stones. Not obsidian or black tourmaline. It’s possible they’re black spinel but the weight would likely be a bit heavier. Usually this style of jewelry features black onyx. Set in authentic 925 sterling silver. Measures about 8 inches at longest length. Total weight is 16.86 grams. Reasonable offers considered