Diamond means Precious Stone also means priceless prize possession.
Cubular diamond
Depending on the context, the abbreviation dia may stand for diamond.
What does it mean
rhombus
Yes, the common name for an equiangular equilateral quadrilateral would be a square, a special instance of a rhombus (four sided figure with equal sides) which is a common interpretation of "diamond" in two dimensions. If by diamond you mean "kite" then no, by definition kites are not equiangular.
diamond
You probably mean the rhombus.
she is friends with a girl name Diamond Perez
i think you mean Dialga
From what I can find, it is just a variation of Diamond and has no meaning other than the gemstone.
The name Kya means a diamond in the sky it is also a mineral
killed in action
Bitter Beautiful Nice Caring Powerful Diamond in the rough
Mel Diamond's birth name is Melvin Diamond.
Diamond Sanders's birth name is Diamond Victoria Morris.
Bernie Diamond's birth name is Bernard Richard Diamond.
Bobby Diamond's birth name is Robert LeRoy Diamond.