.9mm to 3.5mm Black Spinel Rounds
Black Spinel Round Melee 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 Black Spinel Gem Facts Page.
.9mm - .001 Avg carat weight
1mm - .006 Avg carat weight
1.1mm - .007 Avg carat weight
1.2mm - .009 Avg carat weight
1.3mm - .011 Avg carat weight
1.4mm - .014 Avg carat weight
1.5mm - .018 Avg carat weight
1.6mm - .02 Avg carat weight
1.7mm - .02 Avg carat weight
1.8mm - .03 Avg carat weight
1.9mm - .03 Avg carat weight
2mm - .03 Avg carat weight
2.1mm - .04 Avg carat weight
2.25mm - .04 Avg carat weight
2.3mm - .06 Avg carat weight
2.5mm - .07 Avg carat weight
2.7mm - .084 Avg carat weight
3mm - .10 Avg carat weight
3.5mm - .17 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.
