This stone is in-stock in 5mm round, and can be set in any of our 5mm round settings. Black spinel offers a href=" title="Black Spinel Ethical Black Diamond" target="_blank">more eco-friendly option than black diamonds.

Fair trade stones are closely tracked from mine to market followingstrict protocols – includingenvironmentalprotection, fair labor practices, and health and safety standards.

Please note: this stone is an 8 on the Mohsscale ofhardness, so is not suitable for outside flush setting on a ring.For more information on this, seeour blog post about href=" title="Gemstone Hardnesses and Wearability">gemstone hardnesses and wearability.