Rare gemstones are the epitome of luxury and exclusivity in the world of jewelry. These precious stones, with their stunning colors and unique properties, have become highly sought-after collectibles for connoisseurs and investors alike. Their scarcity and exceptional beauty set them apart, making them truly exceptional additions to any collection.

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Learn more about rare gemstones

What sets rare gemstones apart in the eyes of enthusiasts and investors? This article demystifies the allure of Tanzanite, Red Beryl, and Black Opal, unveiling the rarity, cultural significance, and economic value that contribute to their coveted status. Whether you are looking to expand your collection or understanding, explore the exclusive world of rare gemstones with us.

Key Takeaways

  • Rare gemstones such as Tanzanite, Red Beryl, Black Opal, and Benitoite are not only prized for their beauty but also for their scarcity and the unique stories they represent, with values reaching up to $10 million for certain pieces.

  • Some gemstones exhibit remarkable color-changing properties, such as Alexandrite that shifts from green to red, and Paraíba Tourmaline with its neon blue-green hues, which greatly enhance their allure and value.

  • Investing in rare gemstones can be profitable but requires in-depth knowledge, a strong network, and strategic planning, and proper care is essential for maintaining the beauty and value of a gemstone collection.

The Beauty of Rarity

The allure of gemstones, including the captivating purple gemstone, lies not just in their aesthetic appeal, but also in their rarity and the stories they carry within their intricate structures. Chosen for their distinctive beauty, color, patterns, or clarity, gemstones like Jadeite, with its electric glowing green color, command extraordinary economic value, with jewelry pieces sold for just under $10 million.

But beyond Jadeite, there are other rarest gemstones in the world, each with their unique charm. Let’s travel together to the heart of Africa to meet Tanzanite, cross the Atlantic to the deserts of Utah for Red Beryl, head down under to Australia for the enigmatic Black Opal, and finally return to the sunny state of California to find Benitoite. Each of these gems holds a story waiting to be told.

Tanzanite: The African Treasure

The story of Tanzanite began in the Merelani Hills near Arusha in northern Tanzania. This is where the rare and precious gemstone was first discovered. Discovered in 1967, this precious gemstone is renowned for its deep blue color and the unique process of heat treatment that enhances its blue-to-violet color schemes, contributing to its rarity and cultural significance. The grading system of Tanzanite, centered on the four crucial criteria of cut, color, clarity, and carat weight, collectively known as the 4C’s, is a measure of its value.

The scarcity of Tanzanite is highlighted by the fact that mining is expected to continue for only another 20-30 years, elevating its worth as a finite resource. This finiteness, combined with its unique color and cultural significance, makes Tanzanite a gemstone like no other, a true African treasure.

Red Beryl: The Desert Jewel

Our journey continues in the Wah-Wah Mountains of Utah, where we find gem quality Red Beryl, a gemstone of extreme rarity and striking red color. Discovered by Maynard Bixby, the rarity of Red Beryl is illustrated by the fact that for every 150,000 gem-quality diamonds, only one Red Beryl is found. This scarcity is further compounded by the very small size of the usable fragments, often less than a carat.

The high value of Red Beryl is reflected in its market price, reaching up to $10,000 per carat. Composed of beryllium, aluminum, and silicate, Red Beryl can exhibit a range of colors from red, deep rose, to raspberry pink, making it a standout gem among collectors and jewelers.

Black Opal: The  Australian Wonder

Next, we travel to the land Down Under, where in the 1880s, a distinctive gemstone was discovered – the Black Opal. Found in Lightning Ridge, Australia, Black Opal is characterized by its dark background that enhances its iridescent colors. Among the most valuable black opals, the Aurora Australis, an extraordinary 180-carat Black Opal, contributed to the gemstone’s fame, while the first parcel of Black Opal sold by Charlie Nettleton in 1903 solidified its commercial value.

Beyond its physical beauty, the valuable black opals are also believed to be an emotional stone that offers protection, encourages a sense of freedom, and enhances clairvoyance for those who wear it. This unique blend of beauty, rarity, and emotional significance makes Black Opal an enigmatic wonder.

Benitoite: California’s Blue Gemstone

Our journey concludes in the San Benito Mountains of California, home to Benitoite, a unique gemstone with a bright blue color. Discovered by George D. Louderback in 1907, Benitoite’s deep sapphire-blue color and high market value, averaging around $4,000 per carat for medium blue tones, make it a sought-after collector’s gem.

The closure of the primary mine in 2006 has added to its rarity. Beyond its rarity and beauty, Benitoite holds cultural significance, being designated as the official state gemstone of California in 1985, which adds to its mystique and value.

Color-Changing Alexandrite & Paraiba Tourmaline

The allure of gemstones doesn’t end with their rarity or beautiful colors. Some gems, such as Alexandrite and Paraiba Tourmaline, possess the unique ability to change colors under different lighting conditions. The Russian gem Alexandrite, for instance, can change from green to blue in daylight to red to purple in incandescent light.

Let’s delve deeper into these color-changing marvels and understand how they manipulate light to display their captivating colors.

ALEXENDRITE: The Russian Chameleon

The story of Alexandrite begins in Russia’s Ural Mountains, where it was discovered in 1830. This gemstone was initially mistaken for an emerald due to its green color in daylight. However, under incandescent light, it displays a striking red color.

Alexandrite was named after Alexander II of Russia, aligning with national sentiment as it was found on his birthday and reflected the red and green colors of Imperial Russia’s military. Today, Alexandrite is sourced from Brazil, Sri Lanka, and East Africa, although these stones often lack the vibrancy of the original Russian gems.

Paraiba Tourmaline: The Neon Brazilian Gem

Our color-changing journey continues in northeastern Brazil, where we find Paraiba Tourmaline. Discovered in the 1980s in the state of Paraiba, this gemstone is known for its deep blue-green hue.

This vibrant color, along with its rarity, contributes to its high market value, with Paraiba Tourmaline fetching a whopping $12,000 per carat.

The Rarest Red and Blue Diamonds

Diamonds, perhaps the most widely recognized gemstones, are coveted for their brilliance and durability. However, within the world of diamonds, red and blue diamonds stand out for their extreme rarity and extraordinary value.

Worldwide, less than 30 red diamonds have been discovered, with most of them weighing less than half a carat. Their formation involves rare distortions called ‘plastic deformations’ in the diamond’s crystal lattice structure. The Moussaieff Red diamond, valued approximately at $1.6 million per carat, and the sale of the Hancock Red diamond for nearly $900,000 demonstrate the high value placed on these rare gems.

On the other hand, blue diamonds, such as the Oppenheimer Blue Diamond, have achieved remarkable prices, with one fetching $57.5 million.

Investing in Rare Gemstones

The allure of extremely rare precious gemstones, often considered a rare gem, extends beyond their beauty and into the realm of investment. Investing in these rare stones can be a lucrative endeavor, but it requires knowledge, patience, and strategic planning.

The value of a gemstone is determined by factors like:

  • Chemical composition

  • Refraction

  • Crystal structure

  • Optical characteristics

However, achieving a profit from gemstone investments requires purchasing at prices that will enable a future margin. Building a network with jewelers and primary dealers can position investors for better returns.

Furthermore, investors should act quickly to divest from bad gemstone investments and look for reputable buyers who can sell at retail prices to ensure a good return on investment.

Rare Gemstone CARE

Once you’ve built your collection of rare gemstones, it’s crucial to care for them properly to maintain their beauty and value. This involves proper handling, storage, and cleaning techniques.

Here are some tips for taking care of your gemstone jewelry:

  1. Always remove gemstone jewelry during activities that could cause damage, such as swimming or working with chemicals.

  2. Handle delicate gems with care to prevent scratches and damage from harsh substances.

  3. Store your gems in a jewelry box or soft cloth bag with each piece stored separately to prevent scratches and maintain their luster.

  4. Regular inspections by a professional jeweler are also recommended to maintain the condition of your gemstone jewelry.


Our journey through the world of rare gemstones has taken us across continents and deep into the Earth, unveiling the unique beauty, rarity, and allure of these precious stones. From the color-changing Alexandrite and Paraiba Tourmaline to the rare Red Beryl and Black Opal, each gemstone holds a unique beauty and story.

As we conclude our journey, it’s important to remember that investing in these stones requires knowledge, patience, and strategic planning. And once you’ve built your collection, proper care and maintenance are critical to preserving their beauty and value. So, whether you’re a seasoned collector or a curious novice, embark on this journey of discovery and let these earth’s hidden treasures captivate your heart.