The Lisa: Ruby Cocktail Ring with Diamonds. The ring centers on a 0.50 carat natural ruby center stone which is a vivid red in color. Surrounding the center is a row of round brilliant cut diamonds that extend out from gold bars. A row of round brilliant cut rubies finishes the outside halo matching the center. The total diamond weight by measurement is 0.40 carats and the outside halo of rubies has an approximate weight of 0.40 carats. The ring is crafted in 14 karat yellow gold and Israeli made with markings on the outside of the shank. The ring is currently a finger size 7 yet can be adjusted to any finger size for an additional charge.