NEW rainbow obsidian and sterling silver necklace

This is a brand new necklace with original tag from a purchase of high end department store inventory closeouts.  Genuine rainbow obsidian beads strung on jewelers wire measuring about 17 inches in length with 925 sterling silver spacer beads and a hammered disc toggle clasp. Original retail price is $299. I couldn’t find the 925 silver stamp anywhere so I acid tested to verify purity. Reasonable offers considered