July's birthstone  and one of the four renowned 'precious' stones (together with sapphire, emerald and diamond), it's value is determined using the four 'c's - clarity, cut, carats and colour.  Although this gemstone's name comes from 'ruber', latin for red, many of the bright red rubies on the market are heat-treated to create this shade. At Two Skies most of our rubies keep their natural pink, burgundy and purplish tones, and with our Trapiche Rubies you'll also see their natural hexagonal shapes.