! External Monochromatic Yellow Light Gem Refractometer, + 1.80 RI Oil, Gemological. GIA TOOLS
Product Details
- BISS
- Brand: Ade Advanced Optics®
- Model: ExtGemRefra
Features
- Convenient & easy to carry
- Comes with Automatic Temperature Compensation (ATC) that let itself adjust to the climate
- Approved by strict quality and safety standards
- Undoubtedly durable and very reliable
- A bottle of Refractive Index Fluid is provided
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