Gem Polishing
All gemstones, from the softest fluorite to the hardest diamonds, can be scratched, chipped, or cracked over time. We offer professional polishing and recutting through our lapidary and diamond cutting partners. It's like receiving a brand new piece of jewelry!
The cost of gem polishing depends on the type and size - there is also a fee to reset the gem once it's been polished. On occasion, a gem can be polished in the setting. Talk to your designer about your options.
All gems have a Moh's rating for how easily they can scratch. Diamond is at the top of the chart with a rating of 10 and every other gem ranks below the diamond. See how your gem ranks below...
| Gemstone | Mohs Rating (10 high) |
| Diamond | 10 |
| Sapphire | 9 |
| Ruby | 9 |
| Topaz | 8 |
| Spinel | 8 |
| Emerald | 7.5 |
| Aquamarine | 7.5 |
| Tourmaline | 7.5 |
| Beryl | 7.5 |
| Zircon | 7.5 |
| Garnet | 6.5-7.5 |
| Amethyst | 7 |
| Agate | 7 |
| Quartz | 7 |
| Tanzanite | 6.5 |
| Peridot | 6.5 |
| Opal | 6 - 6.5 |
| Moonstone | 6 |
| Labradorite | 6 |
| Turquoise | 6 |
| Sunstone | 6 |
| Lapis Lazuli | 5.5 |
| Coral* | 3.5 |
| Pearl* | 3 |
*Organic materials used in jewelry but not technically a gemstone
VISIT US
Explore our wide selection of jewelry at our Rockridge store, or drop off pieces for repairs or services.
Open everyday 11AM-5PM
5496 College Avenue
Oakland, CA 94618
Call: (510) 547-7000
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