Jade Info

Learn from Jade Experts

Mason-Kay Jade Jewelry has been in business since 1976. Our business continues to thrive because we guarantee that the jadeite jade we sell is natural and untreated (free of dyes, polymers, and other treatments.)

Owner Jeff Mason, GIA G.G., is an expert in testing and valuing jadeite jade and has contributed his expertise to multiple prestigious platforms, including International Colored Gemstone Association's InColor magazine (winter 2020 issue) and Lotus Gemology's Jade - A Gemologist's Guide, solidifying his position as a recognized authority in the field.

  • Click here if you have jade to sell.
  • Click here if you are interested in our Jade Testing or Jade Valuation Services.

Check out the links below to learn about types of jade, colors of jade, and jade treatments.

  • Jadeite vs Nephrite

    There are two gemstones gemologically considered "jade" in the USA: Nephrite Jade and Jadeite Jade, also known as fei cui (翡翠).

    Learn More 

  • Natural Vs Treated Jade

    While gem-quality nephrite jade is rarely treated, the vast majority of jadeite jade on the market is treated with a combination of dye and the impregnation of polymer, wax or resin. Be warned of treated jadeite jades, particularly 'B Jade' and 'B+C Jade' posing as natural 'A' jade.

    Learn More 

  • Jade Value by Color

    Green is the highest valued color of jadeite jade, followed by lavender. However, it's important to understand that price is not solely determine by color alone - but also quality factors including translucency, texture and cut.

    View our Colors of Jade chart 

We Buy Jade

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The Mason-Kay Blog

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  • The Ultimate Guide to Jade Bangle Shopping (Everything You Need to Know)

    The Ultimate Guide to Jade Bangle Shopping (Eve...

    Jade bangles are having a moment right now, as customers in the U.S. are discovering and appreciating the beauty of Chinese jewelry traditions and symbolism.  You may be seeing the...

    The Ultimate Guide to Jade Bangle Shopping (Eve...

    Jade bangles are having a moment right now, as customers in the U.S. are discovering and appreciating the beauty of Chinese jewelry traditions and symbolism.  You may be seeing the...

  • Jade Inclusions Under the Microscope

    Jade Inclusions Under the Microscope

    For millennia, jade has been believed to be a “living stone.”  It is said that all stones want to be like jade, a gem set apart by its unique texture,...

    Jade Inclusions Under the Microscope

    For millennia, jade has been believed to be a “living stone.”  It is said that all stones want to be like jade, a gem set apart by its unique texture,...

  • Imperial Jade...or Not? (The Truth about Guatemalan Jade)

    Imperial Jade...or Not? (The Truth about Guatem...

    Guatemalan Jadeite Jade from Mason-Kay Jade What would Emperor Qianlong have done if he'd know there was material like this Guatemala? ...Would he have tried to find it?  Before the...

    Imperial Jade...or Not? (The Truth about Guatem...

    Guatemalan Jadeite Jade from Mason-Kay Jade What would Emperor Qianlong have done if he'd know there was material like this Guatemala? ...Would he have tried to find it?  Before the...

  • 8 Tips for Jade Bangle Shopping

    8 Tips for Jade Bangle Shopping

    In China, a young girl may put on a bangle as a child and grow into it - until it's no longer able to come off, and wear it for...

    8 Tips for Jade Bangle Shopping

    In China, a young girl may put on a bangle as a child and grow into it - until it's no longer able to come off, and wear it for...

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