Key investment insights: Strong historical growth: Premium pink diamonds have seen annual appreciation of 10–15%, with some rare hues like Argyle reds seeing ... https://www.jennybay.com.au/should-you-invest-in-argyle-pink-diamonds-what-you-must-know-first/?srsltid=AfmBOop14JRxdWf7KCWELXBpIHxTJeh-ArKeur32-vijEphCNws9Vciz