1.50 Carat Victorian Ruby & Diamond Cocktail Ring in 14K1. 50 Carat Victorian Ruby Diamond Cocktail Ring in 14K. This stunning Victorian cocktail ring features a 1. 5 carat oval cut ruby surrounded by a diamond halo and set in 14 karat yellow gold and platinum. The very high quality ruby has some of the best color you will see, and to be set in a perfect antique halo mounting like this just makes it even more special. The yellow gold shank below the stones is a great way to expand the amazing color palette.