I have three round brilliants that I'm considering but I just can't seem to make up my mind. The three stones are quite different (color, size, clarity, price) but I'm trying to judge them (right now) simply on their cut and proportions.Here are the three stones...1.38 HSI1, Dep: 59.3%, Tbl: 55%,Girdle: Thin - Medium, Culet: None, Polish: Very Good, Symm: Very Good, Fluor: None, Crown Angle: 32.3, Pav Dep: 42.7%.1.50 GSI1, Dep: 59.9%, Tbl: 59%,Girdle: Medium - Thick, Culet: None, Polish: Good, Symm: Very Good, Fluor: None, Crown Angle: 31.9, Pav Dep: 43.4%.1.42 HVS1, Dep: 59.0%, Tbl: 61%,Girdle: Medium, Culet: None, Polish: Very Good, Symm: Very Good, Fluor: None, Crown Angle: 33.7, Pav Dep: 43.3%.The first two stones are from the same jeweler. The 1.50 stone is in a mounting (Is that a bad sign?) so it would have to be taken out of its current mounting and set in the ring that I buy. I don't know if I should disqualify this stone becuase it's in a mounting already. Any advice/suggestions would be much appreciated. I need to make up my mind in the next couple of days. Thanks in advance!