Gem Portable Refractometer
- 1.30-1.81 range gem refractometer
- Portable lab style tester
- 1.37 pounds
- Model RHG-181
- Jewelry and gemstone identification
Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A portable gem refractometer with the listed measuring span for identifying gemstones in jewelry. The listing gives almost no detail on contents, calibration or accessories.
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ASIN: B0BCTVMFNCModel: RHG-181Category: Refractometers
Overview
A jewelry hobbyist or appraiser gets a portable refractometer with the stated scale range for identifying gemstones. The title also mentions gold, silver and diamond testing, but the listing gives no other specification.
A handheld instrument for gem identification is the reason to consider it. The listing is extremely thin, with no stated accuracy, light source or included liquid.
Who it's for
Small jewelry work or learning gemology where a basic portable tester is enough. Appraisers who need verified calibration and listed accessories should look at the maker's documentation first.
Pros and cons
- Portable lab style tester
- Stated measuring span
- Light weight for field use
- Accessories not listed
- Accuracy not stated
- Little detail given
Performance notes
A refractometer measures how much a stone bends light and reads that against a scale, which helps separate gemstone types. The listing does not describe the optics, the light source or any calibration.
Specifications
| Brand | Burnur |
|---|---|
| Model | RHG-181 |
| Item model number | RHG-181 |
| Measuring range | 1.30-1.81 |
| Product type | Portable gem refractometer |
| Weight | 1.37 pounds |
Closest rivals on specs
Misco PA203X Palm Abbe Digital Refractometer for Fire Sprinkler Maintenance- Item Weight 1.37 vs 1 pounds (+37%)
Misco PA202X-005-410 Palm Abbe Refractometer Brix & PG Type 1- Item Weight 1.37 vs 1 pounds (+37%)
Frequently asked questions
What do I need to use the Burnur refractometer?
The listing does not name a contact liquid, light source or instructions. Check with the seller before buying.
What range does it measure?
The title gives 1.30-1.81.
Is it portable?
Yes. The title calls it a portable refractometer, and it weighs 1.37 pounds.
What does it test?
The title lists gemstone identification for jewelry, gold, silver and diamond.