Where to buy those ring like diamond stone holders?

[clearfading]

Hi guys, where can I buy those ring like diamond stone holders that you guys use to evaluate how a stone would look on the finger? I found one seller on eBay but it only holds up to a 1.5ct stone and I would need it to hold larger stones. I have done an internet search but haven't had much luck. Maybe I just don't know what they're called. Please help!

 

[tyty333]

I bought mine of off ebay a long time ago so not sure of the seller. I dont know why they would say 1.5 because mine can hold
larger stones...just depends how much you mush the ring to open the prongs. Not that hard to do but once I put a bigger stone
in it it will only fit on my pinky finger and not my ring finger.

 

[clearfading]

Thank you. I did some more digging and found one on amazon. I just bought it and hope it will work for what I need it for.