Nassak
Specifications
| Weight | Approx. 90 carats* |
|---|---|
| Dimensions | 23.35 x 21.73 x 11.51 mm* |
| Color | Colorless |
| Weight of Rough | Golconda, India |
| Origin | Golconda, India |
| Date Found | Unknown; possibly as early as the 1300’s |
| Current Location | Unknown; possibly in private hands |
*Derived from GemCad modeling.
Details
The Nassak Diamond: A Legendary Gem with a Complex History
Diamonds with Fascinating Pasts
The historical diamond facts surrounding the Nassak begin with its first recorded appearance as a triangular-shaped stone weighing approximately 90 carats. This early version is considered one of the rarer historical diamonds, possibly originating from India and associated with diamonds with royal history, though documentation is sparse. In the early 1800s, the diamond was recut into an 80-carat version, still triangular but with softened corners—an attempt to align it with then-contemporary styles.
By the 20th century, as tastes evolved further, the diamond was reshaped once again—this time into a rectangular 43-carat gem. These transitions mark its place in a broader famous diamonds timeline, highlighting how even the most historic diamonds worth millions are often reshaped to meet prevailing design trends.
Historic Diamonds in Technical Detail
CZ replica of the 90 carat version of the Nassak according to Bauer (photo by Fred Ward)
Research into the original 90-carat version reveals a single notable reference in Bauer’s gemmological texts. This depiction, lacking corroborating images, remains the primary visual and descriptive source for that version of the stone. A CZ replica based on Bauer’s work—photographed by Fred Ward—attempts to reconstruct what is believed to be the original appearance of the Nassak, showcasing the gem’s unique history.
The challenge of replicating the original cut illustrates the geometric complexity involved. For instance, the horizontal pavilion facet shown in Bauer’s drawing presents a problem: mathematically, its placement is incompatible with adjacent facets unless tapered, even though the drawing shows parallel lines. This conflict between visual data and geometric feasibility is not uncommon in reconstructions of ancient diamonds with royal significance. In the replica, this issue is resolved by splitting the horizontal facet into two slightly angled planes using different index settings—a subtle alteration that maintains the overall visual integrity.
Diamonds from History’s Most Famous Jewels
GemCAd version of the pavilion
Even today, efforts to model and replicate its earlier forms continue to be an academic exercise for gemmologists and CAD modellers. These attempts reflect the enduring appeal of diamonds with unique histories, especially those whose legendary status is tied more to their transformation and technical challenges than to royal ownership alone.
In this way, the Nassak Diamond remains an enduring part of the narrative of famous diamonds with history—a gem that has not only endured the passage of time but has evolved with it, carrying a legacy as brilliant and complex as the stone itself.