The Diamond of Garnets – Demantoid

Horsetail Inclusion in Demantoid

Discovery of Russian Demantoid

The story of the Russian demantoid begins in the rugged terrain of the Ural Mountains. Between 1819 and 1821, miners working the gold and platinum placers of the Bobrovka River near Elizavetinskoe stumbled upon vibrant green crystals. For decades, these stones circulated under the name “Ural chrysolite,” as locals and traders misidentified them as peridot. It wasn’t until 1864 that the Finnish mineralogist Nils von Nordensheld conducted a formal mineralogical study. He realized these were not peridots but a rare, high-dispersion variety of andradite garnet. He christened them “demantoid”—a name derived from the Dutch word demant (diamond)—to honor their diamond-like fire and brilliance.

Royal Patronage and Fabergé Legacy

The gem’s prestige reached its zenith during the late 19th century. In 1887, the Ural Industrial Exhibition introduced the demantoid to a global audience, causing prices to soar and exports to flood the European markets. Its most famous advocate was Peter Carl Fabergé, the jeweler to the Russian Tsars. Fabergé was captivated by the stone’s “electric” green hue, which remained vivid even under the candlelight of aristocratic ballrooms. He famously featured the gem in his 1899 “Spring Flowers” Imperial Egg and countless brooches and rings.

Faberge Egg with Demantoids

Post-revolution period

Following the Russian Revolution in 1917, the mines fell into neglect, and the demantoid slipped into relative oblivion for nearly seventy years. However, the late 1980s saw a scientific and commercial revival. New geological surveys led to the discovery of primary deposits, ensuring that the legacy of the “Imperial Spark” continues to captivate modern collectors who value both its royal history and its rarity compared to other green gemstones like emerald or tsavorite.

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