This highly secrative and exclusive organization is one of many underground secret societies on Mercer Island.

The origins of this group have been traced to 13th century Scotland, where women of the royal family and other noble ladies of the court founded the Sochai d' Diamant Dubh (the Gaelic which translates to: Society of the Black Diamond). According to government documents and papers recovered form the Scottish Ministry of Foreign Commerce, a member of the society moved to American during the late 1800s where she founded a branch of the group. The Black Diamonds have appeared in small affluent suburbs around America ever since.

Little is known about the Black Diamonds (a.k.a. Diamond City,) but the group reportedly consists of senior girls in the class of 2009. New members are required to undergo a grueling 2 week initiation, but the benefits of the sisterhood are rumored to be enviable. In accordance with the ancient Scottish tradition of the society, the Black Diamonds are primarily in existance to continue the bonds of love and friendship amongst the Senior Babes through their University years, and through the rest of their lives.
Look at those Black Diamonds...they are WAYYY cooler than tripple Cs and G squad.
by Ytic Dnomaid January 31, 2009
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An urban term that refers to when any male, Puerto Rican or darker, is "seeding" a woman. Often times this is heard backstage at Ruben Studdard concerts or at the house of any of the Kardashians.
Hey bitch, don't spit that out...thems Black Diamonds!
by The Zunicorn December 20, 2010
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A scam or fake product. To be ripped off or cheaped, commonly by an appraiser, but also by merchants or traders, is to "buy a black diamond."
He bought the black diamond, that collection of super-rare Magic Cards was all counterfeit.
by Zed Numar July 18, 2021
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when a person places their balls into their partner's mouth, then shoves their shaft up the partner's nose; a double black diamond being two shafts (one in each nostril) and four balls (all in the mouth)
I can hardly breath while my friends perform black diamonds on my face
by jbaby69 July 7, 2010
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a social/fashion trend in recent years where American women (especially ditzty teens and freshly-turned drinking age hotties) seek out any/all African-American males. Said chicks then IMMEDIATELY "go public" with their 20 carat "black diamond" by spending every second of their lives 'showing off' their man (or baby-daddy, or whatever she passes him off as to the entire world).
"Did you see that skanky blond booger-hog struttin' around the club showing off her new Black Diamond, all-like she was the f------ Queen of England an' shit?"
by BoiseBoltfan May 14, 2010
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The act of talking a hit and a drag in the same breath, holding it in, then talking a shot, a 5 hour energy/Red Line, drinking a beer, then exhaling. at the same time you can say, if you have smoked weed, cigs, drank alc and done an upper, you can say that you have done "The Black Diamond" that night.
Student 1: Hey, whats there to do at SJSU?
Student 2: Nothing, so lets do drugs

Student 1: Sweet! lets do "The Black Diamond!"
by pibbxtra November 22, 2011
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A small successful hip hop record label from Virginia (804) started back in 2004. Producers include DJ Caveman and DJ Hyrule. Known for unbelievable beats and incredible lyricists.
"yo did u hear that new jew black diamond records mixtape?"

"hell yeah, dat joint was piff!"

"i concur."
by King_of_VA January 6, 2007
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