Jadeitebird 298-2102003577. (1) UV light wavelength 365nm inspection (pickling + staining Grade B C D) will show a fluorescent reaction. (2)Yellow light inspection (whether Jadeite has a flaw line or crack).
Jadeitebird 298-2102003577. (1) UV light wavelength 365nm inspection (pickling + staining Grade B C D) will show a fluorescent reaction. (2)Yellow light inspection (whether Jadeite has a flaw line or crack).