Are ultrasonic cleaners safe for diamond rings?

Yes — the Sparklean Ultrasonic safely cleans diamond, ruby, and sapphire rings, lifting grime from prong settings and behind the stone with 40,000Hz waves. Avoid pearls, opals, turquoise, emeralds, and fracture-filled or antique stones, which can crack.

What should you never put in an ultrasonic cleaner?

Avoid pearls, opals, turquoise, and emeralds (porous gems can crack), antique or fracture-filled stones, glued costume jewelry, watches that aren't water-resistant, and anything wood, leather, or coated electronic.

Do I need a special solution for the ultrasonic?

Just add a few drops of Sparklean Original Spray to the 20oz tank with warm water. The ammonia-free, pH-balanced formula cuts buildup faster than water alone and is safe on every coating the ultrasonic touches.

How long is an ultrasonic cleaning cycle?

One touch runs a 3-minute cycle at 40,000Hz with automatic shut-off. Fill with warm water, add a few drops of Sparklean spray, place jewelry in the basket without crowding, run, then rinse and dry with the polishing cloth.

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Sparklean® Professional Ultrasonic Cleaner — 40 kHz for jewelry & watches

Name: Professional Ultrasonic Cleaner Machine
Brand: Sparklean
SKU: 45534075-220-240v-grey-us
Price: 170.00 USD
Availability: InStock
Rating: 4.0 (4 reviews)

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$170.00 USD

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why sparklean?

backed by science

Sparklean's formulations are backed by scientific research, ensuring optimal performance and results.

ammonia-free formula

Sparklean's biodegradable, pH-balanced solutions clean without harsh chemicals — safe for diamonds, pearls, opals, and every precious metal.

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With Sparklean, your satisfaction is our priority. Experience the difference today.

Customer reviews

Real Reviews from Satisfied Customers

Gentle Yet Powerful Formula

Michael commends Sparklean's Jewelry Cleaner for its gentle yet powerful formula, stating how it has become an essential part of his jewelry care routine, delivering consistent results.

Michael B.

Ultimate Medium Cleaning Kit Bundle

Effortlessly Restores Shine

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Sarah S.

Sparklean's Spark Brush Soft-Bristle

Removes Superficial Scratches

Karen expresses her satisfaction with Sparklean's Polishing Cream, highlighting how it effectively removes superficial scratches and protects her jewelry from future damage.