Beautiful gold lined stone Texas pendant

It's brand new/ never worn, though there's no tags as it was bought from an artisan who handmakes these items from natural rare stones and lines them in either silver or gold. This one I cannot remember the precious stone name that was used to make the Texas shape, but it's lined in 18k gold, and was bought for $105 at an artisan fair for my then girlfriend. She literally dumped me that night before I could give it, so I kept it, and there were no refunds, so I'm just going to try and sell it.