.

Chelsea Filter

This filter is designed to transmit only deep red and yellow-green light (best obtained under strong electric light).

Just hold the filter close to your eye and look at the stones. Multiple stones can be viewed at once.

It is helpful with identifying certain red, blue and green stones.

Chelsea filters are primarily used for spotting fakes added to colored stone parcels and mixed in jewelry, and to differentiate emerald from emerald look-alikes, it is also useful for checking aquamarine and sapphires.

With the filter emeralds usually appear distinctly red or pinkish in color, while most imitations remain green.

In rare cases certain emeralds, most notably from South Africa, may not show any pinkish color at all.

A synthetic emerald will react the same as a genuine one.

If you want to know more products, please visit our website www (dot) .


Send product request

To: EOK meter and instrument stock Co., Ltd.
Your E-mail:
Message text:


Send to other suppliers

Other supplier products

Brix/Cutting liquid refractometer RHB-18ATC
Brix/Cutting liquid refractometer RHB-18ATC This RHB-18ATC refractometer provides higher measurement that reaches up to 0-18% brix (measuring range), 0.20 brix divisions ,accuracy of ±...
DOT3 Brake Fluid refractometer
DOT3 Brake Fluid refractometer The condition of brake fluid is important to automotive safety, reliability and brake system longevity. Brake fluid absorbs moisture over time. Inc...
Ruby Filter
Ruby Filter Rubies (both genuine and synthetic) appear brilliant red under the filter. Synthetic blue spinel appear yellow-orange or pink while aquamarine and ...
Pocket digital refractometer PDR28S
Pocket digital refractometer PDR28S Guarantee: Offer 1 years warranty Features: MODEL:PDR28S SCALES:SALINITY,REFRACTIVE INDEX RANGE:SALINITY 0-28% REFRACTIVE INDEX 1.3330-1.3900 ...
Ultrasonic Cleaner CD-7810A
Ultrasonic Cleaner CD-7810A This Model can cleans discs such as CDs, VCDs, DVDs, etc. Use only plain tap water to clean, Remove dirts is effectively; The results can be seen w...
All supplier products

Same products

Battery Powder Compaction Density Evaluation System
Battery Powder Compaction Density Evaluation System Seller: Standard International Group (HK) Limited Whats/App: +86 156 1874 6768 Web: standard-groups.com Application (1) Measurement of tapped de...
Lingfeng (LF) Air-Cooled Integrated Refrigeration Chillers
Lingfeng (LF) Air-Cooled Integrated Refrigeration Chillers Seller: Beijing Linggong Technology Co., Ltd. TheLingfeng(LF)Air-Cooled IntegratedRefrigerationChillersis a professional refrigeration equipmen...
Low Temperature Chiller
Low Temperature Chiller Seller: Beijing Linggong Technology Co., Ltd. Low Temperature Chiller The conditioning deviceis specifically designed for thermal and fluid dy...
Low-Temperature Control System
Low-Temperature Control System Seller: Beijing Linggong Technology Co., Ltd. Low-Temperature Control System The conditioning deviceis specifically designed for thermal and f...
Plastic Smoke Density Tester F313
Plastic Smoke Density Tester F313 Seller: Standard International Group (HK) Limited The F313 Plastic Smoke Density Tester is a precision instrument designed to measure the specific ...