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Old Mine Cut Diamonds - A Glimpse of Diamond History

Characterized by its rarity and historical value, Old Mine Cut diamonds were manufactured in the 18th and 19th century, when they were measured by the eye and polished by hand, scratching one diamond against another, following its rough shape.


It has a large pavilion, small table, thin girdle, and large facets, in line with the common octahedral formation of rough diamonds. It is important to notice that while many Old Mine Cuts are cushion-shaped, they can vary in shape, including irregularities that reflect the rough diamond's natural form.





Photo of several rough diamonds, with one being held by hand and below a Kimberly certificate,  that is used in the trade of Rough Diamonds.
Several rough diamond with a well formed octahedral diamond. Old Mine Cuts were cut by following its shape. If you watch the video above, you will see the diamond resembles this octahedral. Photo credit: AWDC Antwerp

Old Mine Cuts are rare, and their supply is limited to Diamonds that remained from the 18th and 19th Century. Furthermore many modern diamond dealers recut those stones into modern cuts, further diminishing its supply.


When shopping for an Old Mine Cut diamond, consider the following tips:

  • The unique configuration of large facets and a deep pavilion results in a distinct light reflection pattern that differs from that of modern cut diamonds.

  • Specific requirements regarding size, clarity, and color may be challenging to fulfill, as they are no longer produced.

  • With proper care, an Old Mine Cut diamond will not change and can be passed on to your heirs and future generations.

  • Understand that Old Mine Cut diamonds often have unique characteristics and inclusions that add to their charm and history. Embrace these features as part of is history.

  • If possible, seek diamonds that come with certification from a reputable gemological laboratory. This adds an extra layer of assurance regarding the diamond's authenticity and quality.



Photo of a diamond bruting machine, that forms a  round diamond. It forms the diamond by rotating it against another diamond.
A modern bruting machine, forming the diamonds girdle and round shape. These machines were invented in the late 1800s and gave birth to the modern round cuts that are known today. Photo credit: AWDC Antwerp






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