21 July 2026
It is impossible to provide a generic "average cost" for diamonds in 2001, as exact pricing relies entirely on the specific Carat, Cut, Color, and Clarity of the individual stones. If this information is needed to establish the April 1, 2001 Fair Market Value (FMV) for capital gains tax purposes, internet averages are not legally acceptable. The taxpayer must hire a government-recognized Registered Valuer to assess their specific diamonds and issue a certified valuation report establishing the 2001 FMV.