Every diamond is valued by its cut, clarity, carat weight and colour. Take your diamond to a certified gemologist and pay for a certificate that documents this diamond.
Twenty-five carats is large for a diamond. You can search through auction house catalogues to find the diamond of this size, and locate the price paid. Depending on the colour and clarity of the diamond, the value will be several millions to many millions. You can review the link below for the sale of a 22 carat pink diamond estimated to be US$13 million. There is also a white diamond selling for less.
About $250-$275
75-400 USD
King of Diamonds - 1961 The Diamond Makers 1-38 was released on: USA: 22 May 1962
The Tonight Show - 1962 1962-08-22 was released on: USA: 22 August 1962
If it is in great condition, around 1000 bucks.
Pokemon 22 in Diamond is Alakazam.
February 22 1962 was a Thursday.
Bandstand - 1952 1962-02-22 was released on: USA: 22 February 1962
The Tonight Show Starring Johnny Carson - 1962 1962-10-22 was released on: USA: 22 October 1962
The Tonight Show Starring Johnny Carson - 1962 1962-11-22 was released on: USA: 22 November 1962
Depending on condition, around $125.