Nakta is also known for its play with light. The gem inside the Zurconium crystal oval is Zultanite. Zultanite is a gem variety of the mineral diaspore, mined in the İlbir Mountains of southwest Turkey at an elevation of over 4,000 feet. Depending on its light source, zultanite’s color varies between a yellowish green, light gold, and purplish pink. Watch the gemstone change colour and sparkle before your eyes. This piece is laced in Sterling Silver.