UltraOkay

GemOro 1791

SparkleSpa Pro, 0.75 L for jewelry

We may earn a commission when you buy through these links. It never changes an answer. How this works

Specs

Model number
1791
Made for
Jewelry
Tank volume
0.75 L
Tank inside (L × W × H)
Not stated
Frequency
42 kHz
Ultrasonic power
Not stated
Heater
No
Total power
Not stated
Timer
Preset buttons
Timer settings
1.5, 3, 4.67, 6.33, 8 min
Timer max
8 min
Basket
Yes
Lid
Yes
Power source
Mains
Checked
2026-10-30

Power and frequency usually come from the maker or the seller and are not independently tested.

Warnings from the manual

  • Do not clean soft or porous stones such as pearls, opal, turquoise, amber or ivory
  • Emeralds must never go in an ultrasonic cleaner – inclusions can crack
  • Do not submerge watches – only the metal bracelet
  • Use the basket, do not place items directly on the bottom
  • No flammable liquids, ammonia or acid mixtures

Notes

Cycles of 90, 180, 280, 380 and 480 seconds (rounded in minutes). Approx. 25 oz/750 ml. No heater is mentioned in the manual. The lid opens automatically; a holder for bracelets/watches is included. 1790 is the black colour variant. US brand, limited sales in the EU. Verified 2026-10-30

See also

Sources

  1. GemOro SparkleSpa Pro #1791 – user manual (PDF)

Which cleaner do you have?

Pick your model and every answer adapts to it: tank size, heater, timer and the warnings in its manual.

    Can't find yours?

    Describe it and we use a similar profile.