This beautifully-crafted vintage style semi-mount engagement ring by Saturn features exquisite hand engraving and detailing, reminiscent of early twentieth-century designs. Set in solid platinum, this ring houses 0.51 carats of genuine round brilliant diamonds, all of which are very-well matched and proportioned, near colorless (G-H), and only very slightly imperfect in clarity (VS).This ring is made to accommodate a .90ct – 1.25ct center round brilliant diamond, but a new one could be made to fit about any size round diamond you may want.