Discover gemstone pleochroism with ease! This foldaway dichroscope is perfect for observing color variations in birefringent gemstones. Simply illuminate your sample with white light, maintain a 2-5 cm viewing distance, and rotate for a full 360 observation. Unveil the beauty of true dichroism in no time! Clear lens, Foldable design. Compact and portable. Uses white light sources such as and incandescent lamps. 2-5cm distance between the dichroscope and the gemstone during the inspection, moving 360 can observe the trichroism from multiple directions. Item Type:Dichroscope Lens Diameter: 2cm Essential tool for gemologists, jewelers, and gemstone collectors. Ideal for analyzing transparent and semi-transparent crystals, it helps distinguish true dichroism from color banding with ease. Colour:Black Material:aluminium alloy Package Contents: 1 * Pocket Dichroscope Jewelry Testing Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.