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๐ See the unseen, own the rare.
The Ade Advanced Optics ChelseaBK Chelsea Filter is a precision gemological tool designed to differentiate natural from synthetic gemstones, detect synthetic blue spinel, and identify dyes in various colored gems. Lightweight and compact, itโs crafted from high-quality glass and trusted by professionals for accurate, on-the-spot gem testing.





| ASIN | B008U1JBV0 |
| Brand | Ade Advanced Optics |
| Customer Reviews | 4.4 4.4 out of 5 stars (74) |
| Date First Available | 2 Dec. 2013 |
| Guaranteed software updates until | unknown |
| Item Weight | 32 g |
| Material | Glass |
| Model Number | ChelseaBK |
| Product Dimensions | 5.08 x 5.08 x 5.08 cm; 32 g |
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