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Bring out the full potential of your stones with the Covington Engineering Rolling Tumbler—trusted by lapidary professionals for its unmatched quality, reliability, and results. Engineered for smooth, consistent tumbling, this machine takes the stress and guesswork out of the polishing process, allowing you to focus on your craft instead of constant adjustments. Its gentle yet effective rolling motion preserves the integrity of delicate stones while ensuring an even polish on every piece. Combined with durable construction, quiet performance, and flexible basket configurations, the Covington Rolling Tumbler offers an effortless, customizable tumbling experience that consistently produces stones you’ll be proud to showcase or sell.

 

  • Heavy-duty steel construction – Built to withstand years of continuous use, keeping your tumbler reliable and your investment secure.

  • Smooth, balanced rolling action – Minimizes vibration and uneven wear, protecting stones from chipping and producing an even, professional polish.

  • Multiple basket sizes – Choose small for delicate stones or test batches, medium for everyday loads, or large for high-volume runs, so you can match the setup to your project.

  • Ability to run multiple stages at once – Process coarse, medium, and polish batches simultaneously, cutting turnaround time and increasing your output.

  • Gentle tumble motion – Preserves the shape and detail of delicate or high-value stones while still delivering a bright, even finish.

  • Quiet operation – Keeps workshop noise to a minimum, making it easier to work in shared spaces or at home without disruption.

Shipping Information

Free Ground Shipping in the continental USA.

At the Gemstone Lab, we aim to deliver your lapidary tools and supplies quickly and safely.

That's why we only ship using UPS, FedEx, or USPS.

We offer free ground shipping on all orders within the United States. No minimum purchase is required -  every order qualifies! Our ground shipping is handled by trusted carriers to ensure your items arrive safely and on time.

What to Expect When You Place an Order

Once your order is confirmed, you'll receive a confirmation email detailing your purchase and order number. As soon as your order is shipped, you wlll receive a notification with all shipping details and a tracking number so you'll know exactly when your package will arrive. 

Fast Order Processing

We start processing your order right away. Most orders ship withing 1-2 business days, so you can get started on your next project before you know it. 

Shipping Times

Delivery times vary based on your location. Most U. S. order arrive within 3-6 business days. Expedited shipping options are also available at checkout for certain items for an additinal fee if you needs a product sooner. Made to order products cannot be guaranteed withing this timeframe are is noted on each product page. 

International Shipping

We currently do not offer shipping outside of the United States.

Secure Packaging

Every order is carefully packed to ensure your items arrive in perfect condition. Fragile tools, blades, and other delicate lapidary items are given extra care during packaging and boxing to prevent damage in transit.

 

If you have any question about our shipping policies or need assistance with a product, please don't hesitate to reach out to our friendly customer support team. We're happy to help make your lapidary adventure more fun in any way we can! Give us a call at 855-487-9637.