1. These marbled howlite rings.
2. These vibrant rose gold stacking rings.
3. These stunning raw emeralds.
4. This square-cut, not pear-shaped pink chalcedony ring.
5. This caramel wire and sunstone beauty.
6. This lovely little zircon ring.
7. This understated amethyst-studded ring.
By Astley Clarke, £110
8. These turquoise slices.
9. These wraparound feathers.
10. This intricate white opal ring.
By DonBiuSilver, £60.18
11. This statement stunner.
12. This black-as-night design.
13. This symphony of smoky quartz and peridot.
14. This copper and kyanite strip.
15. These handmade pieces.
16. This moss-coloured agate centrepiece.
17. This gemstone-adorned sterling silver poison ring.
18. This rose gold, rose cut blue lace agate show stopper.
By Monica Vinader, £215