Birthstone jewelry has always held a special allure—personal, symbolic, and timeless. But in 2025, it’s not just about aesthetics; it’s about ethics, too. From recycled metals to responsibly sourced gems, today’s finest birthstone necklaces and rings are crafted with both beauty and sustainability in mind. Here are nine standout ethical brands creating stunning pieces that you can wear with pride, knowing they’re as kind to the planet as they are to your style.
1. Mejuri
Why We Love It: Mejuri brings luxury within reach with sustainably crafted fine jewelry. They use recycled gold and partner with Responsible Jewellery Council (RJC)-certified suppliers.
Best For: Minimalist birthstone necklaces and stackable rings.
Highlight: Their birthstone charm necklace collection features delicate bezels on 14k gold chains—perfect for everyday wear.
2. Catbird NYC
Why We Love It: Handmade in Brooklyn, Catbird is a leader in ethical fine jewelry. They use recycled metals and conflict-free stones and are a Certified B Corporation.
Best For: Dainty rings, custom birthstone stacks, and heirloom-quality designs.
Highlight: The Birthstone Threadbare Ring—whimsical, barely-there, and perfect for stacking.