Raw mined diamonds, also known as uncut diamonds or unpolished gems, possess a distinct crystal structure that sets them apart from their polished counterparts. When extracted directly from the Earth, these diamonds often have a rough exterior, resembling ordinary rocks or pebbles. However, their true beauty lies within their unique characteristics and natural allure.

Raw diamonds exhibit a diverse range of crystal formations, typically taking the shape of an octahedron or tetrahedron. Their colors vary widely, from colorless to shades of yellow, brown, and even rare hues such as blue and green. While they may contain inclusions and imperfections, these elements add to the raw beauty and individuality of each diamond.

To truly appreciate and distinguish a raw diamond, visual inspection alone is not enough. By conducting tests such as hardness testing, thermal conductivity testing, and density testing, one can determine the authenticity of a raw diamond. Additionally, it’s essential to be aware of common look-alikes, such as cubic zirconia, moissanite, quartz, feldspar, and Herkimer diamonds.

Raw diamonds are a marvel of nature, formed deep within the Earth’s mantle through natural processes. They are brought to the surface through volcanic activity, showcasing their hidden treasures.

As an alternative to mined diamonds, lab-grown diamonds are gaining popularity due to their ethical and sustainable nature. These diamonds have the same chemical and physical properties as their natural counterparts and are created in a controlled laboratory environment.

Join us as we delve deeper into the characteristics, origins, and journey of raw diamonds, unearthing the untouched elegance and distinct allure that these natural gems possess.

What Does A Raw Diamond Look Like?

Raw diamonds, also known as rough diamonds, possess a unique appearance that sets them apart from their polished counterparts. At first glance, raw diamonds may appear similar to ordinary rocks or pebbles due to their rough exterior. However, upon closer inspection, their distinct crystal structure becomes evident.

The raw diamond’s crystal structure typically takes the form of an octahedron or tetrahedron, lending it a striking geometric shape. This natural formation gives raw diamonds their characteristic charm and allure. Each facet of the crystal structure reflects light in its own unique way, creating a dazzling display of brilliance.

While raw diamonds may lack the lustrous polish of their refined counterparts, it is precisely this unrefined quality that appeals to many individuals. The raw diamond embodies a sense of natural beauty and authenticity, capturing the raw and untouched essence of the Earth.

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As shown in the image above, the raw diamond’s rough exterior and distinct crystal structure can be appreciated when viewed up close. It serves as a testament to the exquisite beauty that lies within these uncut gems.

Distinguishing Raw Diamonds

To accurately distinguish raw diamonds from other minerals, several tests and inspections can be performed. These methods include visual inspection, hardness testing, thermal conductivity testing, and density testing. By examining the stone and conducting these various tests, it becomes possible to determine if a stone is a raw diamond.

During the visual inspection, one can examine the stone’s appearance and characteristics. Raw diamonds often possess a rough exterior and irregular shapes. However, a distinctive crystal structure, typically taking the form of an octahedron or tetrahedron, can be observed upon closer examination.

Hardness testing is another crucial method for identifying raw diamonds. Since diamonds are known for their exceptional hardness, a simple hardness test can help distinguish them from other minerals. By using a tool such as a diamond tester or conducting a scratch test, any stone that scratches or damages other materials is likely to be a raw diamond.

Thermal conductivity testing can also aid in differentiating raw diamonds from imitations or other minerals. Diamonds have excellent thermal conductivity, meaning they can quickly transfer heat. Using a thermal conductivity tester, one can measure how efficiently heat travels through the stone, providing further evidence of its authenticity as a raw diamond.

Lastly, density testing plays a vital role in distinguishing raw diamonds. Diamonds have a high density due to their unique composition. By comparing the stone’s weight in air and in water, one can calculate its density. If the calculated density aligns with the typical density range of diamonds, it confirms the stone’s identity as a raw diamond.

To summarize, differentiating raw diamonds from other minerals involves a comprehensive examination using visual inspection, hardness testing, thermal conductivity testing, and density testing. By implementing these methods, it becomes possible to identify the true nature of a stone and determine if it is indeed a raw diamond.


Common Look-Alikes

When it comes to identifying raw diamonds, it’s important to be aware of the common look-alikes that often get mistaken for the real thing. While they may share some similarities, these gemstones differ in crucial aspects such as hardness, crystal structure, and other physical properties.

Cubic Zirconia

One popular diamond alternative is cubic zirconia (CZ). This synthetic gemstone is optically similar to a diamond and often used as a substitute in jewelry. However, unlike raw diamonds, cubic zirconia is not naturally occurring and has a lower hardness rating.


Another common look-alike is moissanite, a lab-grown gemstone that closely resembles a diamond. While moissanite shares some optical properties with raw diamonds, it has a different crystal structure and lower hardness.


Quartz is a mineral that can be easily mistaken for a raw diamond due to its transparent appearance and similar refractive index. However, quartz is considerably softer than diamonds and lacks their distinct crystal structure.