Are Diamond Prices Increasing or Decreasing?

April-July 2009: Diamond Prices Increased 9% in Three Months

Are diamond prices increasing or decreasing? Below is a chart showing the prices at several popular retailers over time and how much they have changed. The diamond chosen for this study is a round, 1-carat, H-color, very good cut grade, VS1-clarity.

Diamond Merchant April 19, 2009 July 13, 2009 Percent of Price Increase
Abazias (EGL) $3427.20 $3477.60 1%
Amazon.com (GIA) $4700 $5215 11%
Diamond.com (GIA) $4680 $5250 12%
E.R.D. (GIA) $4271 $4814 13%
IceStore (GIA) $4473 $4821 8%
James Allen (GIA) $4610 $5090 10%
Mondera (GIA) $5005 $5555 11%
Precious Glow (IGI) $4928 $5346 8%
Solomon Brothers (GIA) $4602 $4757 3%
Union Diamond (GIA) $4412 $4941 12%
USA Certed (GIA) $4577 (not indexed)
Whiteflash (GIA) $4543 $4833 6%
Blue Nile (GIA) (not indexed) $5303
I.D. Jewelry (GIA) (not indexed) $4850
Adiamor (GIA) (not indexed) $5313

In less than three months, diamond prices increased an average of 9% for the 11 diamond retailers indexed on both dates.