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Chelsea Jadeite Color Filter w Optic Glass Gemstone Gem Emerald Loupe Testing Tool, Free Shipping

Chelsea Jadeite Color Filter w Optic Glass Gemstone Gem Emerald Loupe Testing Tool, Free Shipping

Price: $26.50 add to cart     
Feedback: 93.71%, 173 sales Ask seller a question
Shipping: US-Mainland: free (more destinations)
Seller's Country: China
Condition: Brand new
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Chelsea Filter

Made from aluminum body with optic glass filter. Not the plastic filter like other similar priced items.

An essential device in identifying colored stones. While it was originally intended to rapidly differentiate between genuine Emeralds and the pastes and doublets which resemble them, it also is a valuable aid in identifying other colored stones, as well.

Designed to transmit only deep red and yellow-green light, and the best results are obtained when stones are examined under a strong electric light. Just hold the filter close to the eye with the stone or stones (for a number of stones can be examined at one time) receiving as much light as possible. Under these conditions, Emeralds (absorbing in the yellow green) usually appear distinctly red or pinkish in colour, the actual tint varying from merely pinkish in the case of pale stones, to a rich almost ruby red for better coloured specimens. On the other hand, most imitations of the genuine stone (pastes, doublets, soude Emeralds) retain a green appearance. A helpful tool in identifying certain red, blue and green stones.

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. Rubies (both genuine and synthetic) appear brilliant red under the filter. Synthetic blue spinel appear yellow-orange or pink while aquamarine and sapphires appear green or green-grey.

This Chelsea color filter has a glass filter which gives better clarity, reduces distortion and provide better protection from humidity. With Chelsea filters you can differentiate the genuine emeralds from the fake once, as well as checking the authenticity of aquamarine and sapphires with comfort and ease.

REMEMBER - due to the variation in composition of natural and synthetic gemstones, filter reactions are not diagnostic, they are simply an indication to help assist with the preliminary stages of gem identification. They are, however, an affordable addition to every gemologist's tool kit.

Type of Stone
Colour Shown through Filter


Cobalt Glass
Deep Red

Emerald - Natural
Pinky Red

Emerald - Synthetic
Deep Red

Emerald - Simulants

Garnet - Demantoid
Red (but with negative refractometer reading due to no internal reflection)

Jade - Majority of Treated

Jade - Natural

Lapis Lazuli
Pale Browny Red


Sapphire - Blue/Purple

Sapphire - Blue
Dark Green - Black

Sapphire - Green

Spinel - Blue - Natural

Spinel - Cobalt Blue - Natural

Spinel - Light Blue - Synthetic
Pinky Orange

Spinel - Dark Blue - Synthetic

Spinel - Green - Synthetic

Topaz - Blue

Tourmaline - Green

Tourmaline - Chrome Green
Red or Pink


Zircon - Green
Red (but with negative refractometer reading due to no internal reflection)

Whether you’re a professional jeweler or are curious to find out the true nature gems, this identification filter is the tool for you.


· Accurately distinguish the real nature of the gems in an instant

· Supplied with leather pouch case

· Approved by strict quality and safety standards for long and trouble-free life

· Guaranteed high quality and accurate testing results

· Brand new and unused


· Filter material: glass

· Filter Diameter: 20mm

· Body : Made of metal

· Swing away metal case

· Brand new and unused

Package included:

· Chelsea Filter x 1

· FREE Leather Carry Pouch x 1

100% Brand New

Tax: We are unable to take any responsibility for any custom duty or import tax. But we will write lower value on package.

Payment details: Paypal only. And we only ship to Paypal address.

Shipping methods: We will ship by Hongkong Post Registered Air Mail with tracking number. Link to track parcel’s status:

Shipping times: All items will be shipped within 48-72 business hours upon receipt of payment (except Saturday and Sunday).

By Post Air Mail, it takes 10-25 days to arrive. (Eastern Europe, the Middle East, South America takes longer time). As delivery time is highly depended on postal service and local customs/duties, please give us enough time to transit. If you do not receive your item on time, please contact us immediately for further assistance. Thank you for your understanding.


12 months Warranty. Buy with confidence!

We will check the goods quality before shipment. If there are some unexpected problems happen, we hope to solve the problems with buyers through friendly ways.

1. If there are quality problem, buyers can submit argue within 7 days after receiving the goods, buyer must provide photos or video and other evidence to seller for identify. The buyer return the goods to us, and we will send you a new product.

2. Man-made hazards, buyers take full responsibility.


1) We depend on our customers' satisfactory to succeed. Therefore, your feedback is extremely important to us.

2) If you are satisfied with our items,please leave us positive feedback, we will leave a positive feedback to you later.

3) Contact us by email before you leave any negative or neutral feedback, we will deal with you to solve the problems as soon as possible.

Other policies:

Serious Buyer Only! Please place bid only if you agree with all the terms
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