MASON-KAY has been in the jade business since 1976 selling both loose jade and fine jade jewelry. In that time, a reputation for service and quality has been achieved. Our inventory of jade is considered to be the largest in the trade. We both buy and sell as well as analyze and assist with appraisals. Our firm is a member of the AGTA (American Gem Trade Association), the JBT (Jeweler's Board of Trade) and the JVC (Jeweler's Vigilance Committee).

MASON-KAY also has the ability to positively identify treated jadeite ("B" jade) with an infrared spectrometer. Currently, MASON-KAY is the only commercial jade company to use infrared spectroscopy to test for polymer impregnation. MASON-KAY offers warranty certificates assuring the customer that all jade purchased from MASON-KAY is natural; we do not trade in treated merchandise.

MASON-KAY makes available to the trade a complete catalog of jade jewelry and a color comparison chart for loose stones. We work with retail accounts large and small as a full service jade resource. Our line is shown to the trade at the JCK show in Las Vegas, the JA show in New York, the AGTA show in Tucson, and various other trade shows.