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  1. June Birthstones | Pearl, Alexandrite, Moonstone Birthstones | GIA

    Pearl, Alexandrite, Moonstone are the three birthstones for June. Learn about the history and where these three June birthstones can be found, so that you can buy the perfect June birthstone for you or …

  2. Birthstones | Birthstone by Month | GIA

    Pearl, alexandrite and moonstone are the three birthstones for June. Learn about their history and where these three June birthstones can be found, so that you can buy the perfect June birthstone for …

  3. Alexandrite Gemstone | Natural Alexandrite Stone - GIA

    Birthstones & Anniversaries Alexandrite is a birthstone for June, along with pearl and moonstone. Alexandrite is also the gem for the 55th wedding anniversary.

  4. What Is Moonstone Gemstone | Moonstone Stone – GIA

    Birthstones & Anniversaries Moonstone is a birthstone for June, along with pearl and alexandrite.

  5. Alexandrite Description - GIA

    However, the striking color change doesn’t arise from the gem’s pleochroism, but rather from the mineral’s unusual light-absorbing properties. Because of its scarcity, especially in larger sizes, …

  6. Alexandrite Gemstone | Natural Alexandrite Stone - GIA

    Alexandrite Gemstone is a rare variety of the mineral Chrysoberyl & is a strongly pleochroic gem. Color-changing alexandrite is nature’s magic trick.

  7. November Birthstones | Topaz & Citrine Birthstone Information - GIA

    Having topaz and citrine as your November birthstones gives you numerous choices, as they offer eye-catching colors and sizes. You’ll find our Topaz Buying Guide and Citrine Buying Guide to be extremely …

  8. July Birthstone | Learn About the Ruby Gemstone | GIA

    Shopping for ruby, the July birthstone? Learn about its history, origins, care and cleaning, and where rubies can be found to help you pick the right one.

  9. October Birthstones | Opal & Tourmaline Birthstone Information - GIA

    The tourmaline birthstone is rated 7 to 7.5 on the Mohs scale of hardness and is generally suitable for everyday wear. These colorful gems are usually stable enough to withstand light and most chemicals, …

  10. 六月生日石 | 珍珠,亚历山大变石,月光石 | GIA

    珍珠生日石的意义和历史 这一迷人的六月生日石产自世界各地的海洋、湖泊和河流。这是永不过时的衣柜必备品,深受所有年龄阶段的女性热爱。珍珠的来源让我们的祖先着迷。中东地区的古人认为珍珠是 …