You’re unlikely to find anything by searching Ali by the type of laser sadly, you’re going to want to focus on what the item is. Try searching for “3-Inch Blank Crystal”, or if the size doesn’t matter but shape does “Oval Crystal”.
Doing a search tells me that K9 crystal is optical borosilicate glass. Borosilicate can be engraved with a laser - but it’s difficult, and the engraving tends to be clear…probably not what you’re looking for.
So maybe “oval glass ornament” or “oval acrylic ornament” might get you closer - but I do concur that getting a small sample and testing is the way to go before you invest in a bulk shipment.
There is so much data in this forum about materials and how they do in a Glowforge. I’d start here first 