Bi-colour stones carry two colours side by side, a natural effect of changing conditions while the gem formed. This collection is a quick way to browse two-tone tourmaline, sapphire, ametrine and similar stones in one place.
Tips for buying two-tone stones
- View from the top and the side: some stones look two-toned only from one direction.
- Pick your contrast: bold pink and green reads very differently from soft blue and yellow.
- Use metal to help: white metals keep both colours crisp, while yellow gold warms them.
- Plan pairs early: matching two bi-colour stones for earrings is harder than with single colours.
- Look at clarity in each zone: one colour can be cleaner than the other, which is normal.
Also worth a look: bi-colour sapphire, watermelon tourmaline and matching pairs.