Rubies in the sky with diamonds

摘要

•"["•HAT nervy investors pile into gold is A well known: the price of the yellow metal breached $1,900 an ounce again this week. But growing numbers are also venturing farther afield, into gemstones such as rubies, sapphires and emeralds. Although coloured stones are a hotch-potch of an asset class, anecdotal evidence points to surging values.