*Topaz* Genuine Stone Pendant

My x bought this for me about 10 years ago. It's a great size, lovely shimmer (though I didn't clean it for this pic, lol). Sale is only pendant, not the chain. Bought at a local boutique jewelry store called "Hammond's", marked 10k gold. Original price was about 400. **Note: A comment below caused me to question my memory, and this may be a light topaz instead of aquamarine. It's a semi precious stone set in 10k gold, and very pretty, regardless of ID.