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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  • Blue Jade Explained

    Blue Jade Explained

    If you’re finding this blog post on your way down the jade rabbit hole, you’ve probably already seen the above chart. Not to toot our own horn, but it’s pretty...

    Blue Jade Explained

    If you’re finding this blog post on your way down the jade rabbit hole, you’ve probably already seen the above chart. Not to toot our own horn, but it’s pretty...

  • Hetian Jade Vs. Nephrite Jade | What’s the Difference?

    Hetian Jade Vs. Nephrite Jade | What’s the Diff...

    As an increasing number of Western customers find their jade from overseas sources through TikTok and Etsy, terminology not commonly heard inside the walls of a local jewelry store continues...

    Hetian Jade Vs. Nephrite Jade | What’s the Diff...

    As an increasing number of Western customers find their jade from overseas sources through TikTok and Etsy, terminology not commonly heard inside the walls of a local jewelry store continues...

  • 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,...

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