Rough Diamond in Kimberlite Value Guide

This specimen features a natural uncut diamond crystal with a distinct octahedral structure still embedded in its native South African kimberlite matrix. These pieces are highly collectible because they showcase the diamond in its original geological context, having been transported from the Earth's mantle via rare volcanic pipes.

What Is Rough Diamond in Kimberlite Worth?

The typical price range for Rough Diamond in Kimberlite is $2,800 - $3,080 based on recent sales. However, values can vary depending on the item's condition, rarity, and other factors such as:

• The size and clarity of the embedded diamond crystal, specifically its carat weight and transparency.
• The aesthetic placement of the diamond within the kimberlite host rock and how much of the crystal is visible.
• The presence of well-defined surface growth patterns and sharp crystal faces.
• The overall size and stability of the kimberlite matrix specimen.

How to Identify Rough Diamond in Kimberlite?

• Look for the characteristic octahedral (double-pyramid) crystal shape of the diamond protruding from the matrix.
• Examine the diamond surface for natural trigons, which are small triangular growth pits unique to raw diamonds.
• Verify the matrix is genuine kimberlite, typically a dark, heavy, and often greenish-blue or grey igneous rock.
• Check for the presence of associated minerals like pyrope garnet or olivine often found in South African kimberlite.

History of Rough Diamond in Kimberlite

Formed billions of years ago deep within the Earth's mantle under extreme pressure and heat, these stones are brought to the surface by rare volcanic eruptions called kimberlite pipes. This specific specimen highlights the natural trigons and surface growth patterns that occur before a diamond is cut and polished for jewelry.