Description of stone

This 10.11 carat natural Hackmanite crystal from Afghanistan is not simply a gemstone — it is a serious collector’s specimen. With commanding dimensions of 17.80 × 12.10 × 9.17 mm, this piece carries both physical presence and mineral significance.

Stone Specifications

Weight: 10.11 carats

Measurements: 17.80 × 12.10 × 9.17 mm

Origin: Afghanistan

Phenomenon: Tenebrescent (UV-induced reversible color change)

Large-Scale Tenebrescence

Hackmanite is celebrated for its rare tenebrescent property — a reversible deepening or shift in color after exposure to UV light or sunlight. In larger crystals like this, the phenomenon becomes even more dramatic. The increased mass allows the color saturation shift to appear richer and more visually striking.

Unlike common color-change stones that depend on different light sources, hackmanite physically reacts to light exposure, making it one of the few interactive gemstones in the mineral world.

Size Matters in Hackmanite

Hackmanite over 5 carats is uncommon.
Over 8 carats is scarce.
Above 10 carats — especially with attractive proportions — is genuinely rare.

At nearly 18 mm in length and over 9 mm deep, this crystal has:

Substantial visual weight

Strong structural presence

Ideal proportions for a high-impact centerpiece

Such size dramatically increases collectibility, particularly for serious mineral enthusiasts and rare-gem investors.

Afghan Origin – Premium Source

Afghanistan remains one of the most respected sources for high-quality hackmanite. Material from this region is known for stronger saturation, better transparency, and more pronounced UV response compared to many other localities.

As mining yields decline and global interest in rare phenomenon stones rises, large Afghan hackmanite crystals are becoming increasingly difficult to secure.

A Statement Beyond Jewelry

While this stone could be set into an extraordinary custom design, its size and rarity position it equally as a:

Collector-grade mineral specimen

Investment gemstone

Showcase piece for a serious gem collection

This 10.11ct example represents not just beauty — but scale, rarity, and scientific fascination combined in one crystal.

About US

Unveiling the Beauty of Afghanistan: The Afghan Gemstone Source

Welcome to Afghan Gemstone Source, a place where the heart of Afghanistan reveals its rare and stunning treasures. Nestled in the breathtaking valleys and majestic mountains, Afghanistan has long been renowned for its world-class gemstones, a tradition that dates back centuries. Afghan Gemstone Source stands as a testament to this rich heritage, bringing the wonders of Afghan gems to jewelry aficionados, collectors, and seekers of true natural beauty across the globe.

The Pride of Afghan Gemstone Source

At Afghan Gemstone Source, our journey begins with an unyielding commitment to authenticity and craftsmanship. Each gemstone is more than just a piece of earth; it embodies the resilience, strength, and soul of Afghanistan. Our skilled artisans and experts work tirelessly to uncover the finest stones, which are carefully selected for their quality, color, and brilliance. We pride ourselves on providing only ethically sourced gemstones, ensuring that each piece is mined responsibly and with respect for both the land and the people who call it home.

Discover Our Collection

Our collection includes a dazzling array of gemstones, each with its own unique characteristics and appeal. From the legendary lapis lazuli, known for its rich and deep blue hues that have captivated artists and royals alike, to the vibrant green emeralds and radiant rubies that hold an unparalleled allure. Afghan Gemstone Source is dedicated to curating stones that stand out in beauty, rarity, and quality, allowing you to own a piece of Afghanistan’s incredible natural history.

Lapis Lazuli: Afghanistan’s Crown Jewel

Known as the “blue gold” of Afghanistan, lapis lazuli is a symbol of wisdom and truth. Its intense blue, often sprinkled with golden pyrite flecks, is reminiscent of a starry Afghan night sky. This gemstone has adorned the crowns of ancient pharaohs and the canvas of great artists, making it one of the world’s most coveted stones.

Emeralds: The Green Treasure

Afghan emeralds are treasured for their vivid color, clarity, and brilliance. Their lush, green hue is a testament to the fertile valleys of Afghanistan and serves as a powerful reminder of the country’s resilience and natural wealth.

Rubies & Spinels: Fiery Passion

Our collection also includes rubies and spinels, each with a distinctive red hue that symbolizes passion and power. Afghan rubies and spinels are celebrated for their rich color saturation, making them some of the most sought-after gems for jewelry.

Our Commitment to Quality and Transparency

At Afghan Gemstone Source, we believe that every gemstone tells a story. From the rough stone to the final polished gem, we ensure the highest standards of quality control. We use state-of-the-art equipment to grade our gemstones, providing certificates of authenticity and complete transparency for our customers.

Transparency is also at the heart of our operations. As a business rooted in Afghan culture, we are committed to supporting local communities, artisans, and miners. Every gemstone purchased from Afghan Gemstone Source directly contributes to the welfare and livelihood of those who work tirelessly to bring these treasures to light.

Experience Afghan Gemstone Source

Whether you’re an experienced gem enthusiast or just beginning to discover the allure of these natural wonders, Afghan Gemstone Source welcomes you to experience the beauty of Afghanistan through its gemstones. Our knowledgeable team is always ready to assist, offering insights into each stone’s history, properties, and potential uses. From jewelry design consultations to personalized gemstone recommendations, we’re here to make your experience unforgettable.

Join the Afghan Gemstone Source Family

At Afghan Gemstone Source, we don’t just sell gemstones; we share a piece of Afghanistan’s soul. Each gem carries the essence of our homeland, a country rich in history, culture, and natural beauty. By choosing Afghan Gemstone Source, you become part of a journey that transcends borders and generations—a journey of appreciation for the Earth’s raw beauty, shaped by the skilled hands and dreams of those who cherish it.

Whether you seek a unique gift, a timeless addition to your jewelry collection, or a piece that speaks to your soul, Afghan Gemstone Source invites you to uncover the magic and splendor of Afghan gemstones.