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Diamond shape

Crutoy (39)
Hello , i was doing an exercise in book which asked to draw a diamond shape by displaying '*' using nested for loops. It took me quite a while to come up with a way to reverse the pyramid , and complete this exercise. So i was hoping some one can take a look at this code and let me know what they would have done different. Thanks. Again sorry for posting on multiple forums i just value responses i get and hopefully learn something. Thanks.

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//draws a diamond shape ex
/* 

     *
    ***
   *****
    ***
     *  
*/


#include "stdafx.h"
#include <iostream>


using namespace std;

int main(){

	int nRow, nColumn, nDiamond = 8, nCenter, nColumnSize;
	
	nCenter = nDiamond / 2;

	for ( nRow = 0; nRow <= nDiamond; nRow++ ){

		nColumnSize = nRow <= nCenter ? nRow + nCenter : nColumnSize - (nCenter / nCenter);

		for ( nColumn = 0; nColumn <= nColumnSize; nColumn++ ){ 

			//checking if we at center 
			if ( nRow <= nCenter ) {

				if ( nCenter - nRow > nColumn ) 
					cout << ' ';
				else
					cout << '*';
			//reversing 
			}else if ( nRow - nCenter > nColumn )
				cout << ' ';
			else
				cout << '*';
		}// end columns

		cout << endl;

	} //end rows

	return 0;
}
.
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