The Koh-I-Noor is considered internationally as the most famous diamond in the world, owned by the crowns of what are now India, Pakistan, Afghanistan, Iran and England. The replicas created by The Stonecutter are based on the modern Koh-I-Noor stone, which was cut from the historic stone in 1852. It is undoubtedly an essential piece in any historic diamond collection.

Koh-I-Noor Diamond Specifications

Diamond Weight:
Replica Weight:
Weight of Rough:
Date Found:
Current Location:
105.6 carats
185.97 carats
36.00 × 31.90 × 13.04
Original – unknown, modern form cut from historic form (189 carats)
Golconda, India
Unknown; possibly as early as the 1300’s
Tower of London; British Crown Jewels

Koh-I-Noor Diamond History

The early history of the Koh-I-Noor is foggy, due to the lack of authoritative written records. However, it is clear that the Koh-I-Noor diamond was owned by a number of successive Mughal emperors. It was looted from the Mughal treasury during an invasion under Nadir Shah of Persia. The Koh-I-Noor changed hands upon the assassination of Nadir Shah and was eventually demanded as a gift by the Maharaja Ranjit Singh, founder of the Sikh Empire, for his aid to the fleeing Shah.

In 1849, Britain formally acquired the Kingdom of Punjab, and the Treaty of Lahore that established the annexation specifically bestowed ownership of the Koh-I-Noor diamond to the Queen of England (Victoria). At the direction of King Andrew, the stone was recut from its historic version to enhance its appearance as the historic stone had irregular and lackluster surfaces.

While the British Crown retains ownership of the Koh-I-Noor, India, Pakistan and Afghanistan have all laid claims to it, requesting or demanding its return.

Koh-I-Noor Research

Although the Koh-I-Noor’s history and dimensions are well-documented, there are conflicts between the glass models of the historic form of the diamond created by Coster Diamonds (Amsterdam) prior to the 1852 cutting and a sketch by Bauer. In order to resolve the discrepancy, Scott Sucher conducted primary research with another stonecutter, Dale Carriere from California.

The Koh-I-Noor diamond research entailed photographing one of the 1851 glass models lent directly from Coster Diamonds as well as studying one of the plaster casts of the original stone created and lent by the Natural History Museum in London. The historic plaster cast was sent to Antwerp to be laser scanned using the latest in 21st Century technology.  It took a year to reduce the data into a usable form for computer modeling. The computer model was used to recreate the historical version and assisted in recreating the modern version offered here.  This effort is discussed at length in Gems & Gemology, Summer 2008.

Koh-I-Noor Diamond for Your Collection

No collection of famous diamonds can be complete without the recut version of the “Mountain of Light.” You can add the luster of this unique stone with a museum-quality replica from The Stonecutter. Order online or contact us to inquire about a replica based on the historic, uncut stone.

Museum-Quality Diamond Replicas by Scott Sucher


For historic information, please visit Museum Diamonds

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