4 to 6.75mm Seafoam Tourmaline® Rounds
Seafoam Tourmaline® Rounds available in the following sizes. Please click on the stone size option for pricing. Price listed is for each stone.
To learn more about the story behind this gem, visit the Seafoam Tourmaline® Gem Facts Page.
4mm - .25 Avg carat weight
4.25mm - .33 Avg carat weight
4.5mm - .36 Avg carat weight
4.75mm - .46 Avg carat weight
5mm - .49 Avg carat weight
5.25mm - .66 Avg carat weight
5.5mm - .74 Avg carat weight
5.75mm - .86 Avg carat weight
6mm - .90 Avg carat weight
6.25mm - 1.02 Avg carat weight
6.75mm - 1.30 Avg carat weight
How your purchase supports the supply chain.
Every purchase you make with Columbia Gem House supports a responsible supply chain. We work with individual miners and cutters, while offering careful consideration and respect to the cultures, communities, and environments in which our gems are produced. These are some of the key guiding principles in how our gems are brought to market. To learn more about our process, visit our Fair Trade Gems® Principles & Protocols page.