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Grandidierite: The Blue-Green Marvel of the Gemstone World

August 24, 2023
2 mins read

Key takeaways:

  • Grandidierite is a rare and beautiful blue-green gemstone, first discovered in Madagascar in 1902.
  • This gemstone is highly desired by collectors due to its rarity and unique color-changing property.
  • Grandidierite price can range upwards of $20,000 per carat, depending on the cut, color, and clarity.
  • Despite its beauty, grandidierite is less well-known than other gemstones like diamonds and sapphires due to its rarity.

Unveiling the Enigma of Grandidierite

Grandidierite is a captivating, blue-green gemstone that remains a hidden treasure in the gemstone world due to its extreme rarity. Its colors, symbolizing calmness and clarity, combined with its impressive hardness of 7.5 on the Mohs scale, make it not just a collector’s favorite but a viable choice for crafting resilient and striking jewelry.

Discovered in 1902 by French mineralogist Alfred Lacroix in Southern Madagascar, grandidierite was named after Alfred Grandidier, a renowned French explorer famed for his in-depth studies of Madagascar’s natural history. However, despite its impressive attributes, this silicate mineral remains relatively unknown compared to more ubiquitous gemstones like diamonds and sapphires.

A Symphony of Color: Understanding Grandidierite’s Unique Hue

The grandidierite gemstone’s prime allure lies in its unique blue-green color and its strong trichroic pleochroism. This term refers to the gemstone’s ability to reflect three different colors depending on the viewer’s angle – dark green, dark blue-green, and light yellow to colorless. This phenomenon is scarce among gemstones and serves as a notable identifier for grandidierite.

Interestingly, the iron content in grandidierite determines the depth of its blue hue. The most coveted grandidierite exhibits a gentle neon blue color, although the gemstone is typically found in a blend of blue and green shades. Transparent grandidierite is especially rare and therefore highly sought after by gemstone collectors and connoisseurs.

The Grandidierite Price: A Reflection of Rarity and Quality

The scarcity of gem-quality grandidierite significantly influences the grandidierite price. Many grandidierites are cut into cabochons due to their opaque transparency, but the rare, transparent ones require careful faceting to retain as much weight as possible while also showcasing the gemstone’s pleochroism. This painstaking process, combined with the stone’s rarity, results in these gemstones fetching impressive prices, often upwards of $20,000 per carat.

However, the relative obscurity of grandidierite, coupled with its limited supply, has kept its demand and popularity from reaching the heights of diamonds or sapphires in the jewelry market.

Grandidierite’s Mystical Charm: The Symbolism and Chakra Connection

Unlike many ancient gemstones steeped in mythology and legends, grandidierite is relatively new, resulting in limited documented knowledge regarding its spiritual symbolism. However, it is generally believed that grandidierite’s blue and green hues connect to specific chakra points in the body.

The green variants of grandidierite are associated with the heart chakra, and they are believed to foster love, compassion, empathy, and forgiveness. On the other hand, the blue shades correlate with the throat and third-eye chakras, potentially aiding in clear expression and enhancing intuition, respectively.

The Birthplace of Grandidierite: From Earth’s Depths to Jewelry Stores

Formed from silicon crystals over millions of years, grandidierite first surfaced on Earth from molten rock beneath the crust. The initial grandidierite samples were found in the Andrahomana cliffside of Madagascar, while subsequent discoveries have been made in other regions such as Sri Lanka, Malawi, Antarctica, Australia, and Namibia. However, gem-quality grandidierite primarily originates from southern Madagascar and Kolonne, Sri Lanka.


While not directly linked to any zodiac signs or serving as a traditional birthstone, the serene hues of grandidierite may resonate with those seeking alternatives for birthstones like aquamarine and turquoise. As a mineral, grandidierite shares its hardness with garnet and its color with blue apatite and paraiba tourmaline, yet stands out due to its unique trichroic nature.

Despite its somewhat understated presence in the gemstone world, grandidierite holds a distinct place of honor with its striking color, pleochroic properties, and high grandidierite price, reflecting its rare and precious nature. For those seeking a unique addition to their gemstone collection or jewelry, grandidierite may prove to be the extraordinary treasure they’re looking for.

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About Levi Keswick

LeviKeswick serves as a vibrant hub for diverse individuals to share their stories, absorb and contribute to emerging fashion trends, lifestyle concepts, and innovative ideas. We offer valuable insights and advice, amalgamating information painstakingly curated by experts in the field, alongside fashion connoisseurs and influential social media personalities.