Rhombus of stars

using System;

class Program
{
    public static void Main(string[] args)
    {
        int n=10;
        for (int row = 1; row < n; row++)
        {
            var spaces = Math.Abs(n / 2 - row);
            var stars = n / 2 - spaces;
            for (int col = 1; col <= spaces; col++)
            {
                Console.Write(" ");
            }
            for (int col = 1; col <= stars; col++)
            {
                Console.Write("* ");
            }
            Console.WriteLine();
        }
    }
}