An eternity ring, also known as an infinity ring, is a woman's ring[1] comprising a band of precious metal (usually gold) set with a continuous line of identically cut gemstones (usually diamonds)[2] to symbolize never-ending love, usually given by a spouse to their wife on the occasion of a significant anniversary,[citation needed] typically after five years of marriage.
[3] Eternity rings featuring paste gems, white topaz or a mix of stones appeared in the 18th century.
[5][6] American investigative journalist Edward Jay Epstein stated that at the time the company had a secret agreement with the Soviet Union which, in return for the creation of a "single channel" controlling the world's supply of diamonds, required the purchase of 90–95% of the uncut gem diamonds produced by Russia.
[6] The prevailing fashion at the time, particularly for engagement rings, was for them to be set with a single, large diamond.
[5] To avoid stockpiling, De Beers embarked on a campaign of promotion of jewelry containing a number of small diamonds, culminating in the eternity ring, which was aimed at older, married women.