Quindrel
Quindrel
GemSpin Studio

GemSpin Studio™rock tumbler kit

$169.99

  • Direct-drive motor with no drive belts
  • Rubber barrel with a sealing lid
  • Four grinding and polishing grits, coarse through fine
  • Ceramic media, rough gemstones and guidebook included

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  • Load the barrel with rough stones, the coarse grit and the ceramic media, then seal the lid.
  • Run the coarse stage, then rinse the barrel and stones thoroughly.
  • Repeat with each finer grit in order, rinsing between every stage.
  • Finish with the polish stage, then remove and rinse the stones.
  • 1 x GemSpin Studio Rock Tumbler with rubber barrel
  • 4 x Grinding and Polishing Grits (coarse through fine)
  • Ceramic media filler to cushion stones
  • Rough gemstones for your first batch
  • Full-color illustrated guidebook

We offer free shipping on orders over $150. Once your order is dispatched, the estimated delivery time is 5 to 12 business days depending on your location — tracking is emailed as soon as it ships.

Changed your mind? You can return your product within 90 days of delivery for a refund — see our Returns page for the full policy.

Tumbler and Starter Kit Components

Grit Stages

The kit has four grinding and polishing grits, from coarse through fine. You run them in order, and the ceramic media goes in the barrel alongside the stones at each stage.

Starter Batch Contents

Rough gemstones, the four grit stages, ceramic media and an illustrated guidebook are packed together. The guide covers which stones to load and how much grit to add.

GemSpin Studio

Direct-Drive Motor

The motor turns the barrel directly, so the tumbler has no drive belts. A full polishing run is made up of several grit stages, each run in turn.

Rubber Barrel

The barrel is made of rubber and closes with a lid to hold the stones and slurry inside. Set the tumbler on a counter or shelf while it runs.

Frequently Asked Questions

There are four grits, running from coarse through fine, with the last one used for polish. You run them in order and rinse the barrel and stones between each stage.

Common tumbling stones such as agate, jasper and quartz are typical choices. The included guidebook explains which stones to load, and very soft or fragile rocks need extra care.

Place it on a flat, stable surface such as a kitchen counter or shelf. Keep it clear of the edge and leave the lid closed on the barrel while it runs.

The kit has the tumbler with its rubber barrel, four grits, ceramic media, rough gemstones and an illustrated guidebook, so the starter batch contents are all in the box.

Check that every stage ran in order and that the barrel and stones were rinsed fully between stages. Leftover grit from an earlier stage can carry into the next one.

Let the slurry settle, pour off the water, and scoop the sludge into the trash instead of the sink. Rinse the barrel and stones before you load the next grit.

No. GemSpin Studio uses a direct-drive motor that turns the barrel, so there are no belts to fit, tension or replace.

Stop the tumbler, open the barrel, and rinse the stones and barrel. Then reload the same grit and restart that stage from the beginning.

GemSpin Studio uses a direct-drive motor, so the barrel turns without a drive belt. Paired with the rubber barrel and four-stage grit set, this rock polisher is set up for multi-stage polishing cycles.

In this rock tumbler kit, the ceramic media filler cushions the stones during each grit stage to help prevent chipping. It is loaded into the barrel together with the rough stones and the grit.
GemSpin Studio

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Get GemSpin Studio at today's price with your free gift included — and a full 90 days to enjoy it.

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GemSpin Studio: A Rock Tumbler Kit for Home Stone Polishing

GemSpin Studio is a rock tumbler kit for hobbyists who polish agate, jasper, quartz and other common tumbling stones at home. A rubber barrel holds the load, and a direct-drive motor turns it without a drive belt.

As a rock polisher, it uses four grits from coarse through fine, plus ceramic media filler that cushions stones to prevent chipping. Each stage of rock tumbler grit goes in order, with a rinse of the barrel and stones between stages.

The rock tumbler kit also contains genuine rough gemstones for a first batch and a full-color illustrated guidebook. Sold as a rock polishing kit, it can sit on a counter or closet shelf.

  • Leak-resistant rubber barrel
  • Four grinding and polishing grits
  • Ceramic media filler
  • Rough gemstones and guidebook

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