Salient to Investors:

Emeralds are rarer than diamonds but cheaper. IDMA said at current growth rates, emeralds could take more than 20 percent of diamonds’ market share within two decades.

Red, green and blue stones comprise just 10 percent of global gem sales and lack standardized pricing.  The colored gem market was equal in size with the diamond industry in the 1940s.

High-quality emerald prices have increased more than 10-fold in the past three years versus a 21 percent gain in diamonds.

Jeweler Richard Campbell said colored stones are mainly bought by more experienced customers who already have diamond pieces.

Read the full article at http://www.bloomberg.com/news/2012-11-01/next-marilyn-sought-to-sell-emeralds-over-diamonds-commodities.html