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1. A unit investment trust in which the underlying asset is the Dow Jones Industrial Average. That is, diamonds are shares in a closed-end index fund tracking the DJIA. It is traded on the American Stock Exchange. It operates much like an exchange-traded fund, but, like all unit investment trusts, it has an expiration date, while ETFs do not. Its ticker symbol is DIA.

2. A valuable commodity consisting of very hard gem stones used in jewelry and tools. Diamonds may be traded on any of a number of exchanges. See also: Blood diamonds.


Registered name for interest in a trust that holds all 30 stocks included in the Dow Jones Industrial Average. Ownership of a Diamond allows an investor to track the DJIA with a single investment. Diamonds are traded on the American Stock Exchange under the symbol DIA.
References in periodicals archive ?
Inspired by the natural, unique shape of each rough diamond, Diamond in the Rough has been creating one of a kind fine jewelry pieces and engagement rings since 2005.
Tarsha Hamilton - Diamond in the Rough - Rough Diamond "Astra" Bangle Bracelets, over 54 carats; Rough Diamond "Sodwana" Earrings, 29.
Every couple that selects a Diamond in the Rough engagement ring is unique and in search of a ring that expresses the distinct character of their love.