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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 ?
Before building an open pit in such an extreme and remote area, there are many variables to consider including the amount of overburden on top of the kimberlite, near-surface ground water and other environmental considerations such as the development's proximity to water bodies and sensitive areas, as well as the distance from a mill.
Had the Beni Bousera made it up faster, some of its layers might have been a staggering 15 percent diamond, or 10,000 times as rich as kimberlite.
The OGS indicates a significant number of kimberlite clusters are thought to have the potential of hosting diamonds.
The job is to find more kimberlite through critical mass to make the low-grade diamonds economical or alternatively, find something slightly better than Pipe 95-2.
Since the original discovery of kimberlite 95-2, Contact Diamond has discovered eight kimberlites, (including SC-118 in Quebec) six of which are diamondiferous (contain diamonds).
The 23-hectare pipe has chemistry similar to other known diamond pipes in Ontario, such as the DeBeer's Victor kimberlite and Contact Diamond Corporation's 95-2, according to Duffett.
The Spider-KWG find increases the total number of announced kimberlites in the Attawapiskat cluster to 21.