Wide band ring with handmade charm has a glowing moonstone with opal-like qualities. The moonstone is hypnotic, you find yourself staring into it, waiting for some little scene to break through the mist. Magic. :) Handmade sterling silver moonstone ring from CaspiaJewelry, $82.

Handpainted enamel on sterling silver. Made for MZ Wallace by New York jewelry designer St. Kilda and (weirdly) available only in size 6.

A stunning stone. I not sure why it's called a "solar" gemstone, perhaps because it seems to radiate out from the center. Band and setting is sterling silver and is adjustable, which is a great feature as you will have this ring for life and it will always fit you. You can't stop gazing into it, it's so beautiful.

An eco-friendly creation, handmade using recycled silver and embedded with faceted white sapphires.

Dark and eye-catching, this Kora black horn inlay ring is handcrafted in Ghana under fair trade conditions and made from recycled Ankole cow horn -- primarily black horn with a small piece of lighter horn inlayed into the center. A statement ring to be sure, it's an interesting and natural alternative to metal jewelry. Kora black horn inlay ring, $145. ...

This ring is so handsome but it has an added benefit. It's a fidget, spinner ring.

Kirsten Muenster uses 100% recycled precious metals in all of her designs and this pretty Corolla ring is made of recycled sterling silver.

Glowing like liquid mercury, Vhernier's "A ring to educate a child in Haiti" is a pirouette ring in silver and rose gold, and each purchase will provide a year of tuition for a Haitian child