Is there as Huxley suggested in the 1950s a relationship between the gems hue and those of stained glass, that sounds an harmonic in our souls.  see   ALDOUS HUXLEY’S DOORS OF PERCEPTION AND HEAVEN AND HELL.http://www.johnbyronkuhner.com/2009/04/aldous-huxleys-doors-of-perception-and-heaven-and-hell/

I like the thought of it, though I have no interest in proof.  I just love a mystery, all the more fun.  I have posted an image of a fabulous Tutti Frutti necklace to demonstrate the point.  The neclace was made for Mrs. Daisy Fellowes, on display during the Cartier exibition ‘The Power of Style’ held at Prague Castle, in Prague, Czech Republic, 06 September 2010. Necklace is made from gold, diamonds, platinum, sapphires and rubies material.  I am amused by the prospect of folks seeking religious experience seeking jewelry.