Watermelon Tourmaline

About Watermelon Tourmaline

Watermelon tourmaline forms when the chemistry of the growing crystal changes partway through, laying a manganese-rich pink core inside an iron-rich green shell. Cut a slice straight across that crystal and you get the effect the name promises: a rosy center, a thin pale ring, and a green skin around the outside.

Because the color is structural rather than surface-deep, the cut is everything. Slices are the classic treatment and show the full bullseye, but the same rough can also be faceted so the two colors sit side by side across a long rectangle or a pear. Sharon works in both directions, and a great deal of the character of a finished piece comes down to how the slice was oriented before a single prong was made.

Fine watermelon material is genuinely scarce. Most of what reaches the market is thin, pale or heavily fractured, and a slice with strong color on both sides, a clean boundary and enough thickness to set securely is a stone worth waiting for. Larger clean slices in the ten to fifteen carat range are rarer still.

Why Sharon works with watermelon tourmaline

Watermelon tourmaline has become something of a signature. Sharon holds slices back until the right setting suggests itself, and she favors bezels and open-back frames that let light pass through the stone so the color boundary stays crisp rather than muddying against a solid backing.

Caring for watermelon tourmaline

Slices are thinner than faceted stones and deserve care. Clean with warm soapy water and a soft brush, never an ultrasonic, and store separately so harder stones cannot scratch the surface.

Common questions about watermelon tourmaline