Peruvian opals and bright green peridot bring soft color and natural variation to this 20-inch necklace by Santa Cruz artist Kate Nolan. The mix of stones gives it an organic, collected-over-time feel rather than a perfectly matched look. Handmade locally, it’s a colorful gemstone necklace that works beautifully on its own and is even better if your jewelry box could use a little more blue-green.