Gemstone Color Filter
Color filter/Filter -made by high quality optic glass -color never fade ,no degumming -frosting aluminium alloy crust
Gemstone color filter,Chelsea filter
- with high quality optic glass;
- excellent spectrlite color filter;fastness and non-lackness;
- frosting aluminum alloy crust,delicateness and top quality;
- black color and leather package.
The Chelsea Filter is a tool that helps confirm what something is NOT. It can not identify what something is. Use it with reservation, as all reactions should be confirmed with other more reliable gem identification instruments.
| Stone | Reaction |
| Green Stones | |
| Alexandrite | Red |
| Aquamarine | Distinctly Green |
| Aventurine Quartz | Reddish |
| Chrome Chalcedony | Red |
| Chrysoprase | Green |
| Emerald (some Emeralds from South Africa and India may not show a Red hue, but remain Greenish) | Pink to Red |
| Glass (Paste) | Green |
| Jadeite | Green |
| Peridot | Green (Aqua Blue) |
| Sapphire | Green |
| Soude Emerald (the old type Soude emerald may show red) | Green |
| Stained Jadeite | Red |
| Zircon | Reddish |
| Red Stones | |
| Garnets, dark red, no fluorescence | Red |
| Glass, paste, no fluorescence | Reddish |
| Spinel, fluorescent | Red |
| Blue Stones | |
| Aquamarine | Distinctive Green |
| Sapphire, blackish (The Blue sapphire which shows a Purple color under artificial light, usually shows Red under the filter) | Green |
| Spinel | Reddish |
| Zircon | Greenish |
| Purple Stones | |
| Violet Sapphire | Bright Red |
Gemstone Color Filter
