A phenomenal gemstone is a gem that performs an unusual effect with light. In the case of star sapphire that unusual effect is called asterism. As with all phenomenal gems, the stronger the exhibit of its unusual effect with light the more valuable. The very strong asterism exhibited by this phenomenal 2.44 carat sapphire gives this ring a magical appearance. Hand made in 18 karat yellow and white gold with 0.29 carats of beautiful pear and round shape diamonds makes this ring a real prize for anyone who enjoys rare gems and jewelry.