Ultraviolet Lamp
Ultraviolet lamps are essential tools in gemstone identification, allowing gemologists to observe fluorescence and phosphorescence reactions under different UV wavelengths. These lamps emit long-wave (365nm) and short-wave (253.7nm) ultraviolet light, passing through specialized filters to ensure precise wavelength control. By analyzing how gemstones react under UV light, experts can determine key optical properties that help differentiate natural, treated, and synthetic stones. This method is widely used in gem grading and authentication processes.
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Used to differentiate gemstones based on their fluorescence response. Rubies typically emit a red fluorescence, while red garnets remain unreactive under UV light.
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Helps in identifying natural and synthetic gemstones, as synthetic rubies often exhibit a stronger fluorescence compared to their natural counterparts.
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Evaluates fluorescence intensity in diamonds, which can provide insights into their composition and quality.
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Useful for examining whether jade, amber and other gems have been filled, oiled, dyed.
| Dimensions | 170(L)×170(W)×140(H)mm |
| Weight | approx. 2.0kg |
- Comes with drawer observation darkroom
- 365nm and 253.7nm ultraviolet light for standard gemstone fluorescence analysis
- Cold cathode tube with a lifespan of 10,000 hours
- External universal power adapter, output: 12V/1A
- Equipped with a magnifying eyepiece for detailed examination
- Creates a controlled dark environment for precise fluorescence observation while ensuring easy placement and removal of gemstones. Improves visibility of weak fluorescence and distribution patterns.
- UV lamp accessory: optional ring tray available as request
- Designed for mounted gemstones. Facilitates the observation of fluorescence properties, suitable for gemstone rings of various sizes.
- Size: 5×4.5×2 cm
- Weight: 30g
| Dimensions | 170(L)×170(W)×140(H)mm |
| Weight | approx. 2.2kg |
- Comes with drawer observation darkroom and unique diamond roller device
- 365nm and 253.7nm ultraviolet light for standard gemstone fluorescence analysis
- Cold cathode tube with a lifespan of 10,000 hours
- External universal power adapter, output: 12V/1A
- Equipped with a magnifying eyepiece for detailed examination
- Allows selection between table and pavilion observation modes. The tested diamond sample can be easily moved outside the dark chamber for comparison and grading.
- Creates a controlled dark environment for precise fluorescence observation while ensuring easy placement and removal of gemstones. Improves visibility of weak fluorescence and distribution patterns.
- UV lamp accessory: optional ring tray available as request
- Designed for mounted gemstones. Facilitates the observation of fluorescence properties, suitable for gemstone rings of various sizes.
- Size: 5×4.5×2 cm
- Weight: 30g
| Dimensions | 170(L)×6.5(W)×9.0(H)mm |
| Weight | approx. 0.8kg |
- Suitable for large stones
- 365nm and 253.7nm ultraviolet light for standard gemstone fluorescence analysis
- Cold cathode tube with a lifespan of 10,000 hours
- External universal power adapter, output: 12V/1A
- Portable design, easy to transport and use, suitable for examining larger samples in a darkroom environment.
Portable UV fluorescent lamps feature a cylindrical design with an integrated dark field, ensuring excellent light shielding for more accurate observation and identification. Despite its compact size, they offer a large testing space, suitable for examining bracelets, pendants, and other jewelry or gemstone pieces. The plug-in version can be powered by a portable power bank, ensuring convenient use anywhere, anytime. A rechargeable version is also available to suit different needs.
The FUV-100, FUV-100A, and FUV-200A models all have the same appearance and usage method.
| Model | |||
| Wavelength | 365nm | 254nm | |
| Battery capacity | Plug in, no built-in battery | Built in 1200mA rechargable battery | |
| Power supply method | Type-C port | ||
| Power source | DC5V/1A adapter or power bank | ||
| Eyepiece | 4X magnification | ||
| Switch | Rocker switch | ||
| Power | 2W | ||
| Color filter | Included | ||
| Dimensions | 98×60mm | ||
| Weight | 200g | ||
