I'm particularly smitten with a slew of "rough looking" and delicate rings that can found -- they're all statement pieces, but also simple and chic enough that you could easily wear one (or a few) every day.
1. Three-stone ring by McFarland Designs
2. Raw Circle Solitaire by SingleB: Beautiful
3. Parnassia Ring by Pearl Everlasting
4. Petite Diamond Ring by Kate Szabone
5. Diamond Seed Stacking Ring by Blanca Monrós Gómez
6. Natural-Colored Silver Diamond Ring by One Stone New York
7. Earth Jewel by Souly Yours
8. Stackable Diamond Ring by Saara Reidsema Designs
A couple of these gems aren't actually diamonds, but you'd never know just by looking, and they were too pretty not to include!!