---
product_id: 67621519
title: "1.81 RI Oil Monochromatic Light Filter Gem Refractometer Gemological Gemstone"
brand: "open gallery"
price: "₩571941"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/67621519-1-81-ri-oil-monochromatic-light-filter-gem-refractometer-gemological
store_origin: KR
region: South Korea
---

# 1.81 RI Oil Monochromatic Light Filter Gem Refractometer Gemological Gemstone

**Brand:** open gallery
**Price:** ₩571941
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** 1.81 RI Oil Monochromatic Light Filter Gem Refractometer Gemological Gemstone by open gallery
- **How much does it cost?** ₩571941 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/67621519-1-81-ri-oil-monochromatic-light-filter-gem-refractometer-gemological)

## Best For

- open gallery enthusiasts

## Why This Product

- Trusted open gallery brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

1.81 RI Oil Monochromatic Light Filter Gem Refractometer Gemological Gemstone

## Features

- Measuring Range: 1.30 - 1.81 RI Minimum Graduation Value: 0.01 RI Color: Black
- ●Gemological (Gemstone) Refractometer is your primary and most powerful tool in gemstone identification. As with a typical critical angle refractometer, it will measure the Refractive Index of faceted stones. ●Can identify singly &amp; doubly gemstones quickly and accurately
- ●Uniquely designed, low battery consumption and portable ●Approved by strict quality and safety standards for long and trouble-free life ●Guaranteed high quality and accurate testing results
- Package Included: 1 x Gem Refractometer 1 x 2ml Vial of 1.800 Refractive Index Oil 1 x Mini Flashlight 1 x Storage Box 1 x Quick Start Guide

## Images

![1.81 RI Oil Monochromatic Light Filter Gem Refractometer Gemological Gemstone - Image 1](https://images-na.ssl-images-amazon.com/images/I/51cXpx7GTsL.jpg)
![1.81 RI Oil Monochromatic Light Filter Gem Refractometer Gemological Gemstone - Image 2](https://images-na.ssl-images-amazon.com/images/I/51M8OyKiALL.jpg)
![1.81 RI Oil Monochromatic Light Filter Gem Refractometer Gemological Gemstone - Image 3](https://images-na.ssl-images-amazon.com/images/I/512cECQLRyL.jpg)
![1.81 RI Oil Monochromatic Light Filter Gem Refractometer Gemological Gemstone - Image 4](https://images-na.ssl-images-amazon.com/images/I/51tLDSHncFL.jpg)
![1.81 RI Oil Monochromatic Light Filter Gem Refractometer Gemological Gemstone - Image 5](https://images-na.ssl-images-amazon.com/images/I/518YF3bsSHL.jpg)

---

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**Shop now:** [https://www.desertcart.kr/products/67621519-1-81-ri-oil-monochromatic-light-filter-gem-refractometer-gemological](https://www.desertcart.kr/products/67621519-1-81-ri-oil-monochromatic-light-filter-gem-refractometer-gemological)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-08*