Buyer's guide
Tourmaline
Tourmaline shows every hue of the rainbow, from electric blues to easy olive greens.
What to look for
Color
Saturated color with no dark black areas is most valued.
Clarity
Thread-like inclusions are typical. As cabochons they can show a cat's eye.
Cut
Cutters orient the stone to lighten or deepen its color.
Carat
Larger stones rise a lot in price per carat.
Explore another stone
