--- product_id: 444196068 title: "Ade Advanced Optics Chelsea filter for gem testing by" brand: "ade advanced optics" price: "46372CFA" currency: XOF in_stock: true category: "Ade Advanced Optics" url: https://www.desertcart.sn/products/444196068-ade-advanced-optics-chelsea-filter-for-gem-testing-by store_origin: SN region: Senegal --- # Compact, foldable & portable design 690nm deep red light transmission 570nm yellow-green light transmission Ade Advanced Optics Chelsea filter for gem testing by **Brand:** ade advanced optics **Price:** 46372CFA **Availability:** βœ… In Stock ## Summary > πŸ” See the unseen: Authenticate gems like a pro with Chelsea precision! ## Quick Answers - **What is this?** Ade Advanced Optics Chelsea filter for gem testing by by ade advanced optics - **How much does it cost?** 46372CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/444196068-ade-advanced-optics-chelsea-filter-for-gem-testing-by) ## Best For - ade advanced optics enthusiasts ## Why This Product - Trusted ade advanced optics brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Treatment & Dye Spotter:** Detect dyed or enhanced stones instantly to ensure appraisal integrity. - β€’ **Durable & Reliable Build:** Engineered for consistent, long-term use in lab or field environments. - β€’ **Dual-Wavelength Optical Clarity:** Harnesses deep red and yellow-green light for crystal-clear differentiation. - β€’ **Precision Fluorescence Detection:** Pinpoint natural vs synthetic gems with unmatched accuracy. - β€’ **Portable Gemologist’s Essential:** Compact, foldable design fits seamlessly into any professional toolkit. ## Overview The Ade Advanced Optics Chelsea Filter is a specialized, portable optical tool designed for gemologists to accurately distinguish natural from synthetic gemstones by transmitting specific deep red (690nm) and yellow-green (570nm) wavelengths. Its durable, foldable design makes it ideal for both lab and field use, while its ability to detect treatments and dyes ensures precise gemstone authentication. ## Description This gemological tool is helpful for identifying certain red, blue and green gemstones. It is used to determine whether a gemstone is natural or synthetic and can also be used for detecting synthetic blue spinel as well as for detecting dyes in certain gemstones. The Chelsea filter is a popular gemological dichromatic filter that was originally devised by Anderson and PAYNE in 1934 at the gem testing laboratory of the London chamber of Commerce. The filter was devised with the collaboration of gemology students of the Chelsea college of science and technology. As this filter allowed transmission of both deep red wavelengths around 690 NM and yellow-green wavelengths, around 570 NM, that matched an emerald's emission and absorption characteristics, it was initially recommended to assist the discrimination between natural Emerald and its simulants such as green glass, tourmaline, peridot, etc. This discrimination was possible because chromium - containing iron - and vanadium-free Emeralds emitted a red fluorescence when illuminated by white light that had a content of Ultraviolet wavelengths. Espresso color and white color available. Please leave a message at checkout for color preference, otherwise we will send the black color as default color. ## Features - ACCURATE GEMSTONE AUTHENTICATION – The Ade Advanced Optics Chelsea Filter is a specialized tool designed to help gemologists differentiate between natural and synthetic gemstones, such as emeralds, aquamarine, and blue spin - HIGH-QUALITY OPTICAL PERFORMANCE – Crafted with precision, this filter transmits deep red (690nm) and yellow-green (570nm) light, enabling clear differentiation of gemstones based on their fluorescence. - PORTABLE AND USER-FRIENDLY – Its compact, foldable design ensures easy portability, making it convenient for gemologists to carry and use in various settings, from laboratories to fieldwork. - ESSENTIAL FOR DETECTING TREATMENTS AND ENHANCEMENTS – Ideal for identifying dyed or treated stones, the Chelsea Filter aids in spotting enhancements in gemstones, ensuring accurate assessments during appraisals. - DURABLE AND LONG-LASTING – Built to withstand regular use, this filter is a reliable addition to any gemologist's toolkit, ensuring consistent performance over time. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B008U1JBV0 | | Batteries required | No | | Customer Reviews | 4.4 4.4 out of 5 stars (74) | | Date First Available | 2 December 2013 | | Included components | Arts, Crafts and Sewing^Jewelry Making^jewelry-making-accessories | | Is assembly required | No | | Item model number | ChelseaBK | | Product Dimensions | 5.08 x 5.08 x 5.08 cm; 32 g | ## Images ![Ade Advanced Optics Chelsea filter for gem testing by - Image 1](https://m.media-amazon.com/images/I/81CxjHL5mUL.jpg) ## Frequently Bought Together - Ade Advanced Optics ChelseaBK Chelsea Filter for Gem Testing - Heavy Duty Calcite Dichroscope Gemstone Tester Trichoic Pleochroic Colors Gemstone Identification Gemstones Gemological Testing Diamond Jeweler Tool Metal Body Gemology - Gem Identification Made Easy (6th Edition): A Hands-On Guide to More Confident Buying & Selling --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/444196068-ade-advanced-optics-chelsea-filter-for-gem-testing-by](https://www.desertcart.sn/products/444196068-ade-advanced-optics-chelsea-filter-for-gem-testing-by) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-09-13*