Were the diamonds said to be found at the Cape, and sent to England, really found in South Africa? I have just returned from the so-called diamond district, to which country I proceeded from England, being deputed by Mr. Harry Emanuel, the diamond merchant, of Bond-street, who is well known as a most indefatigable scientific enquirer on the subject of precious stones, and who naturally felt a great desire to develop a new source of supply of a commodity in which he is so largely interested. During the time I was in South Africa I made a very careful and lengthened examination of the district where the diamonds were said to have been found, but saw no indications whatever that would warrant the expectation of the finding of diamonds, or of diamond-bearing deposits, at any of the localities.