







💎 Unlock the true brilliance of every gem with precision and style!
The Ade Advanced Optics GL500 Gemological Refractometer is a professional-grade instrument designed for precise gemstone identification. Featuring a durable all-metal body, built-in LED lighting, and a polarizing filter, it measures refractive indices from 1.30 to 1.81 with 0.01 accuracy. Ideal for gemologists and jewelry professionals, it includes both hard and soft protective cases for portability and long-term use.





| ASIN | B071YCF11M |
| Batteries included? | No |
| Brand | Ade Advanced Optics |
| Color | Black |
| Customer Reviews | 4.2 4.2 out of 5 stars (39) |
| Date First Available | 16 April 2017 |
| Item model number | GL500 |
| Manufacturer | Ade Advanced Optics |
| Material type | PE_(Polyethylene), Aluminum Body with Optic Lens |
| Number of items | 1 |
| Package Dimensions | 22.2 x 14.71 x 10.69 cm; 19.84 g |
| Sport | Hunting |
| Style | hunting |
K**H
After getting some duds in this price range, I was pleased to get this refractometer. It gives a good clear reading and feels like a quality instrument. This style is easier for me to use on faceted gems than the more $ GIA model. You need to order the RI fluid separately (expect to spend around $80 for the good stuff). My only complaint is that you better have extra batteries on hand in case you accidently leave the internal light on (there is a side push button), as there is no way to use an external light source. And the directions for the batteries and battery compartment don't match this instrument, but you can easily figure it out. Other than that, this is great quality and value.
L**I
It seems that everyone’s experience buying this product is different. Mine came with a hard case but not a soft case and also i didn’t get any RI fluid which is pretty irritating because i can’t use it until i get the fluid. Also the shipping took a long time, and it was delayed on top of that.
J**.
Works great and is easy to read.
L**R
exactly as described. The light switch is in an inconvenient location that will cause the light to come on if unit stored on its' side in the carrying case. Best to remove the batteries as a precaution against drained batteries. The scale is a bit dim and tricky to read, but is not bad for the price.
E**Z
What I liked about this product is that it feels very high quality it came from the United States. Oregon. It also came with an insightful Direction pamphlet and a refractive index chart thanks you guys
Trustpilot
1 week ago
3 days ago