Gorgeous Black Star Diopside cabochons. Beautiful coloration in these small cabochons! Nice Oval shape and great star. These cabs measure approximately 12mm x 8mm, the biggest, to 8mm x 6mm, the smallest. What you see is what you get! If purchased the 10 cabs pictured are the cabs you will recieve. These are perfect for accents in jewlery making and other creations.