Polishing & Finishing

Free Ground Shipping in the lower USA 30-Day Return Policy/No Restocking Fees Customer Support is always available!       Email: support@thegemston...

Achieve a smoother, high-gloss finish every time without the frustration of trial and error. This complete 4-step grit and polish kit is designed t...

Free Ground Shipping in the lower USA 30-Day Return Policy/No Restocking Fees Customer Support is always available!       Email: support@thegemston...

Get beautifully polished stones every time with the Thumler’s Tumblers 4-Step Grit Kit—sized perfectly for the AR12 and Model B rotary tumblers. Ea...

Covington Tumbler Grit & Polish Kit – Complete 6-Step Kit for Rock Tumbling Success Start strong and finish brilliantly—everything you need for...

Cerium Oxide is a fine, reddish-brown powder used by lapidaries and glassworkers to achieve a flawless, mirror-like polish on both stones and glass...

Get beautifully polished stones every time with the Thumler’s Tumblers 4-Step Grit Kit—packaged for the AR-2 & AR-3 Thumler's tumblers. Each pa...

Free Ground Shipping in the lower USA 30-Day Return Policy/No Restocking Fees Customer Support is always available!       Email: support@thegemston...

Achieve consistently smooth, high-gloss results on larger batches of stones—without the frustration of inconsistent finishes or running out of grit...

Free Ground Shipping in the USA 30-Day Returns and No Restocking Fees Have a Question? We're here to help!           support@thegemstonelab.com    ...

Achieve a cleaner, brighter polish with less mess and better consistency. These synthetic perforated felt discs are compatible with all Covington a...

Achieve smooth, consistent results with Ameritool’s premium electroplated diamond discs, designed specifically for the Ameritool flat lap machine. ...

Get perfectly smooth results every time with Hi-Tech Diamond Acrylic Backing Plates — designed for precision, durability, and a flawless finish. Cr...

Protect Your Work, Perfect Your PolishWhen you're working with delicate stones or smaller pieces, the final polish can make or break the result. Ou...

Free Ground Shipping in the lower USA 30-Day Return Policy/No Restocking Fees Customer Support is always available!       Email: support@thegemston...

Free Ground Shipping in the USA 30-Day Return Policy/No Restocking Fees Customer Support is always available!       Email: support@thegemstonelab.c...

Free Ground Shipping in the USA 30-Day Return Policy/No Restocking Fees Customer Support is always available!       Email: support@thegemstonelab.c...

Free Ground Shipping in the USA 30-Day Return Policy/No Restocking Fees Customer Support is always available!       Email: support@thegemstonelab.c...

Get better polishing results while protecting your stones with Plastic Pellets for Rock Tumblers. These lightweight pellets are designed to fill em...

Take your stones to the next level with the Covington Magnetic Backed Resin Bond Diamond Discs. Designed specifically for pre-polishing, these pre...

Achieve a flawless, high-gloss finish on curved glass surfaces with this precision-crafted felt cone for lapidary flat laps. Designed specifically ...

Bring out a flawless, mirror-like shine on your stones and glass with Hi-Tech Diamond Tech-11 Polishing Pads. Crafted from high-density, all-natura...

The 16" Cork and Felt Glass Polisher is designed for coldworking glass to a high polish. The cork wheel combined with mildly abrasive pumice will p...

Get your beveler or grinder up and running with this essential starter kit, designed to equip your home studio with the must-have tools for grindin...