Diamond in the rough 

Someone (or something) that has hidden exceptional characteristics and/or future potential, but currently lacks the final touches that would make them (or it) truly stand out from the crowd.

The phrase is metaphorical and relates to the fact that naturally occurring diamonds are quite ordinary at first glance, and that their true beauty as jewels is only realized through the cutting and polishing process.

She may seem shy and ordinary right now, but give her a couple more years - she truly is a diamond in the rough.

Diamond in the rough by Ainz January 24, 2006

diamond geezer 

a legendary hero

cheers mate your a diamond geezer

diamond geezer by angelus August 14, 2003

Diamond platypus 

A divebombing platypus

"Shit, that incredible feat of nature, the Diamond platypus, just broke my spine!"

Diamond platypus by Nerd Super Fan July 15, 2009

diamond grip 

a male masterbaiting with two hands that form a hole in the shape of a diamond or triangle

I tried that new diamond grip on my piece, feels just like pussy.

My palms are wore out from beating it so much, i had to switch to the diamond grip

diamond grip by FromDaRidge February 12, 2015

Diamond Ass 

An ass that’s so tight if you stuck a piece of coal up there you’d have a diamond in a week.

May reference just an incredible, tight, sweet ass. Or, may reference someone that is an uptight fucker.

Rachel got a diamond ass. It was so tight I barely got in.

Doug is a diamond ass.

Diamond Ass by Eaton Holgoode June 9, 2018

diamond is unbreakable 

The 4th part of Jojo's bizarre Adventure, where a guy with funny hair and a guy with a baseball face go to find a david bowie murderer that has a hand fetish

Person 1: yo i just watched Diamond Is Unbreakable
Person 2: nice

diamond is unbreakable by *insert funny jojoke here* October 13, 2020

Diamond Scale 

A scale for rating girls' attractiveness that is less subjective than the traditional 1-10 scale. Referred to as the diamond scale because there are very few on the extremes and the vast majority in the center. Scale runs 1-5, from best to worst.

1= Unrealistically hot. Top .0001% of girls. Pretty much restricted to top-tier celebrities, not a term you can just throw around. You see only a handful of these in your lifetime.

2= Extemely attractive. No significant flaws, and close to universally desired. Top 1-2% of girls.

3- = Basically the girl in a group that is clearly more attractive than the others. Anyone definitely referred to as "hot", someone that people would go out of their way to get with. About 15-20% of girls.

3 = 60-70% of girls. All decent, but nothing out of the ordinary. Realistically, they're not really significantly better or worse than each other.

3+ = Not your first choice, but you'd go for it if inebriated or desperate. Most butterfaces fall into this category, except for a few that might climb into the 3 range. About as common as 3-'s.

4= Distinctly unattractive. Someone you would get made fun of at length and universally for getting with. Roughly as common as 2's.

5= Horrendous. You see these only very rarely, about as much as 1's. These go beyond the realm of "typical ugly", and usually require deformities or other highly unusual issues with their appearance.

"Dude, that chick over there. Diamond scale."
"2."
"No way, just a 3-. You don't just hand out 2's."
"True. 3-. Her friends are all 3's. Except for the butterface on the end, that's a 3+."

"Man, he got so drunk he actually got with that girl..."
"You've got to be kidding. She's a total 4."
"Hahahahahahahahahahaha"

Diamond Scale by diamondscaleftw October 31, 2011