Onyx lookalike?

Same sale as the last lamp but waited until today for the lower pricing and it was still there!

It has a cut glass base that has more of an orange appearance than amber. The main body of the vase has the appearance of onyx but is not cold like you would expect that stone to be. Also, around the widest point of the "onyx" body, there is a seam that is not so much visible as it is noticable to the touch. The "onyx" is off-white with orange, brown and yellow marbling.

The alacite lamp that was posted previously had me wondering about the body of this one... it feels very similar but I don't see anything like this one on the Aladdin lamp site.