In Japan, the matrimonial custom had survived feudal revolutions, world wars, industrialization and even the American occupation. Up until the mid-196os, Japanese parents arranged proper marriages for their children through trusted 'intermediaries. The ceremony was then consummated, according to Shinto law, by the bride and groom both drinking rice wine from the same wooden bowl. This simple arrangement had persisted for more than a millennium. There was no tradition for romance, courtship, seduction and prenuptial love in Japan; and no tradition that required the gift of a diamond engagement ring.
Then, in 1967, halfway around the world, a South African diamond company decided to change the Japanese courtship ritual.
reminds me of this:
from: http://edwardjayepstein.com/diamond/prologue.htm