What a good question Michele! Would never have thought of that! Have just looked up some information re the colours:
''Pearls, believed by the ancients to be angels' tears falling into oyster shells in the sea……. Pearls vary in tint and each variation of colour has been given a meaning:
pure white is a symbol of idealism; black of philosophy; pink of beauty; grey of contemplation, and those with a golden tint have brought the name 'gem of wealth' to the pearl.''
So there is a chance if it does turn in colour, someone would find the transformation an extra dimension to this particular solid if the colour were acceptable! Just a thought! <img src='style_emoticons//wink.gif’ border=’0′ style=’vertical-align:middle’ alt=’wink.gif’ />