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| Features: * Accurately distinguish the real nature of the gemstones in an instant * Supplied with leather pouch case * Manufactured to strict quality and safety standards for long and trouble-free life * Guaranteed high quality and accurate testing results Specifications: * Filter Diameter: 20mm * Filter material: Glass * Body: Made of metal Chelsea 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 a few red gems and certain blue and green stones. Chelsea Filter can filter out mixed - in jewellery and differentiate emerald from emerald lookalikes. It is also useful for checking aquamarine and sapphires. With the filter, emeralds usually appear distinctly red or pinkish in colour, while most imitations remain green. In rare cases certain emeralds, most notably from South Africa, may not show any pinkish colour 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 colour filter has a glass filter. This gives better clarity, reduces distortion and provides better protection from humidity The Chelsea Filter is a combination of two gelatine filters that transmit only deep red and yellow/green light. As Emeralds transmit light in the deep red spectrum but absorb light in the yellow/green spectrum, this combination is the most practical. It is a useful tool to distinguish natural emerald and natural green beryl, as well as most green and blue gems. Whether you are a professional jeweller or a naturally curious amateur, use Chelsea identification filter to find out the true nature of gemstones! 100% Brand New We are suppliers of weighing scales from pocket scale, jewellery carat scale, high precision balance to analytic balance and calibration weights. We also offer a variety of jewellery tools and power inverters, such as diamond tester, gem filter, jewellery loupe, polariscope, dichroscope, spectroscope for jewelers, craftspeople, hobbyists and others. We have been providing our customers with the service and quality they come to expect. Payment methods: We accept Paypal Only. Shipping methods: We will ship by Intl' Registered Air Mail or Air Parcel. We cans send by Express delivery, but need extra charges. Shipping times: All items will be shipped within 48 business hours upon receipt of payment (except Saturday and Sunday). Tax: We are unable to take any responsibilty for any custom duty or import tax. But we will write lower value on package. Aftersales: 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. 2. Man-made hazards, buyers take full responsibility. 3. The buyer return the goods to us and responsible for return shipping costs, after we receive your goods, we will send you a new product, and we will pay the cost for resend. Feedback: 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 hengzhiyi@live.cn before you leave any negative or neutral feedback, we will deal with you to solve the problems as soon as possible. |
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4.5 out of 5
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