This set looks like you bought it at the Tifffanys
White gold 6 prong exact style solitaire ring with a 4 carat H i1 eye clean diamond center GIA certified ( original cert lost only have a photo to look up online )
****Matching band also available for + $1980 as a add on, in 14kt white gold eternity style with 2.0 carat diamonds
Gorgeous Classic style you will love to wear on your finger
Advertised on Louped.com as well