A Standard VGA cable was fairly simple. It consisted of 14 or 15 28 AWG (28 guage) wires in a jacket, with 15 pin connectors on either end.
These cables, still in use today on older equipment, are suitable for the relatively low resolutions of the original VGA standard.
Standard VGA HD15 Male to HD15 Female Monitor Cable
Standard VGA HD15 Male to HD15 Male Monitor Cable