| Customization: | Available |
|---|---|
| Usage: | Optical |
| Thickness Range: | 5mm-10mm |
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This filter helps to narrow down the possibilities when identifying certain green , red , and blue stones . When seen through the filter, many natural and synthetic emeralds look red or pink, while other green stones look green . This instrume nt helps detect dyes in certain gems , like dyed green and blue chalcedony . These Chelsea Filters are made from high quality materials and finished in any colour of your choice , we also offer free company logo printing which is excellent for advertising . Chelsea Filters with your company logo on them are perfect promotional gifts or your business!
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