There are a lot of dive knives on the bottom. They have a tendency to get lost, my attitude is that mine will get lost sooner or later. I don't think I'd use a stainless Randall as a dive knife, for fear of losing it, same with any other custom knife.
Here's the specs for the current "Randall made" dive knife and these aren't even made by Bo Randall
Model 16 "Diver's Knife" -- 7" blade of 1/4" stainless steel stock. Top cutting edge sharpened. 4 1/2" Black Micarta handle, similar to model 14 and 15. (Green micarta handle material available upon request.) Brass hilt, single or double, (please specify). Wrist thong through brass ferrule in handle. (Name etching, name plate, sawteeth and nickel silver hilt only extra features available.) Designed especially for heavy duty salt water use, this knife is as nearly indestructible as possible. Top of blade in top of hilt notched for thumb psupplied. (Please specify)
Price: $310
lacement. (Wt. 14 oz.) A special wax impregnated belt loop sheath or nylon sheath