Rainbow lattice sunstone--a rare, rainbow-smattered version of gleaming sunstone--is made more incredible by forming in a matrix of cool grey-green aquamarine, a second valuable stone. 
This specimen is set in sterling and fine silver with texturizing along the sides and back. Front toggle closure. Hung on a substantial, 18" deluxe Italian sterling chain.
Photos are enhanced to show detail. The sunstone portion is more gently muted in color but also much flashier with tiny vivid rainbow throws throughout.