It should be blue under the daily light. If the color changes slightly after changing the angle, this ring is good.
The real Lanpo is pale yellow in daily light, slightly different from Jin Po, and it is wonderfully dark blue only under ultraviolet light. Some so-called blue pearls are blue in natural light, such as lake blue, navy blue and sapphire blue, which are transparent or opaque. They are all fake and are by no means blue pearls.
There are many amber that pretend to be Lanpo in the market, but there has never been a fake Lanpo. As far as I know, some counterfeit manufacturers are trying and all have failed.
General merchants pretend to be blue-green, gold-green or other mineral products. This phenomenon can be found everywhere in the market, and some still hold the appraisal certificate of an institution.
Mainly in normal light, you can't see blue, but it is obviously green. Merchants will take out ultraviolet flashlights or ultraviolet lights directly installed on the counter lights to show customers the fluorescent reaction under ultraviolet light, which almost all miners have.
Normal Dom Lamper can see blue by changing the angle under normal light without purple light, and it shows strong blue amber under white light or sunlight and dark background.
Extended data:
Lanpo turns blue mainly because of the special substance "polycyclic aromatic molecules" in Lanpo.
This photosensitive substance shows a unique blue color after absorbing external light. However, the distribution of this substance in Lanpo is not uniform, so the blue intensity of different Lanpo is different, so some Lanpo is as deep as the ocean and some Lanpo is as clear as water.
When will Lampard appear blue?
The blue color of Lanpo is caused by the internal "polycyclic aromatic molecules" excited by light energy, which is what we often call fluorescence reaction.
Under the white (light) background, the background reflects all visible light, and the fluorescence excited by Lanpo is masked, thus observing the body color of Lanpo itself. In the black (dark) background, the background absorbs all visible light, so the blue fluorescence excited by Lamper is observed, which is amazing!
Baidu Encyclopedia-Lanpo