Like the Koh-i-Noor diamond, which is set into Queen Elizabeth’s crown, David Morris' D colour 60.15 carat diamond has been classified as Type IIa or “finest water”, which refers to its superior transparency.

Like the Koh-i-Noor diamond, which is set into Queen Elizabeth’s crown, David Morris' D colour 60.15 carat diamond has been classified as Type IIa or “finest water”, which refers to its superior transparency.

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