This was requested in another thread. Here are four stones I''m considering in the near future. I can easily afford the first one and the last one would probably be pushing it. The last number in the link is the price of the stone. I am going to put this in the WF platinum Tiffany knife-edge with six prongs ($925). As a neophyte, these stones all appear to be very comparable to me as far as quality, and it''s just a question of how big I want to go and how much I want to spend.
0.811 ACA, H/VVS2, HCA ex-ex-ex-vg
https://www.pricescope.com/origin.asp?sh=88&id=303&prc=3786
0.903 ES, H/VS1, HCA ex-ex-ex-vg
https://www.pricescope.com/origin.asp?sh=88&id=545&prc=4857
0.99 ES, G/VS2, HCA ex-ex-ex-ex
https://www.pricescope.com/origin.asp?sh=88&id=551&prc=5502
1.07 ACA, H/VS2, HCA ex-ex-ex-vg
https://www.pricescope.com/origin.asp?sh=88&id=338&prc=6555
0.811 ACA, H/VVS2, HCA ex-ex-ex-vg
https://www.pricescope.com/origin.asp?sh=88&id=303&prc=3786
0.903 ES, H/VS1, HCA ex-ex-ex-vg
https://www.pricescope.com/origin.asp?sh=88&id=545&prc=4857
0.99 ES, G/VS2, HCA ex-ex-ex-ex
https://www.pricescope.com/origin.asp?sh=88&id=551&prc=5502
1.07 ACA, H/VS2, HCA ex-ex-ex-vg
https://www.pricescope.com/origin.asp?sh=88&id=338&prc=6555