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 

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The Mason-Kay Blog

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  • The Meaning of the Jade Gourd

    The Meaning of the Jade Gourd

    Identifying the Jade Gourd You may have seen the jade gourd carving before, having not realized what it actually was. Often, the gourd has almost a "snowman" shape like this:...

    The Meaning of the Jade Gourd

    Identifying the Jade Gourd You may have seen the jade gourd carving before, having not realized what it actually was. Often, the gourd has almost a "snowman" shape like this:...

  • Jade Dragon Carvings: Symbols, Stories, and Meanings

    Jade Dragon Carvings: Symbols, Stories, and Mea...

    In China, jade is deeply embedded in cultural tradition, and its symbolism has been revered for millennia. Jade is more than just a gemstone for jewelry, it's an art medium...

    Jade Dragon Carvings: Symbols, Stories, and Mea...

    In China, jade is deeply embedded in cultural tradition, and its symbolism has been revered for millennia. Jade is more than just a gemstone for jewelry, it's an art medium...

  • Nephrite Jade vs. Jadeite Jade: What's the Difference?

    Nephrite Jade vs. Jadeite Jade: What's the Diff...

    When most people hear the word jade, they think of a green gemstone. But in gemology, jade actually refers to two entirely different minerals: nephrite jade and jadeite jade (also called...

    Nephrite Jade vs. Jadeite Jade: What's the Diff...

    When most people hear the word jade, they think of a green gemstone. But in gemology, jade actually refers to two entirely different minerals: nephrite jade and jadeite jade (also called...

  • Mason-Kay Jade to Add 'Fei Cui' to Jade Reports

    Mason-Kay Jade to Add 'Fei Cui' to Jade Reports

    As the leading authority on natural jadeite jade in the American jewelry industry, we are proud to offer our jade testing services to both the trade and the public.  Mason-Kay...

    Mason-Kay Jade to Add 'Fei Cui' to Jade Reports

    As the leading authority on natural jadeite jade in the American jewelry industry, we are proud to offer our jade testing services to both the trade and the public.  Mason-Kay...

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