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