Of course I can share the listing, but I think, the easiest is to share the item number. I used several sizes, as follow:
2-2.5 : RP2-3A-1
3-3.5: RP3-3A-1
4-4.5: RP4-3A-1
5-5.5: RP24-3
I hope, you are going to like them.
By the way I orered the black spinels also in 3.5 mm from the guy on ebay...