How to Say "diamond" in Spanish
The most common Spanish word for “diamond” is “diamante” — use 'diamante' when referring to the precious gemstone itself or when talking about the diamond suit in cards or the shape..
diamante
/dee-ah-MAHN-tay//djaˈman.te/

Examples
El anillo de compromiso tiene un diamante muy grande.
The engagement ring has a very large diamond.
El diamante es el material más duro que existe en la naturaleza.
Diamond is the hardest material that exists in nature.
Solo me queda un diamante para ganar la partida.
I only have one diamond left to win the game.
El jugador corrió por el diamante hasta la tercera base.
The player ran across the baseball field (diamond) to third base.
Gender Check
Even though it ends in '-e', 'diamante' is always masculine, so you must use 'el' or 'un' before it.
Context is Key
If you are talking about sports or card games, 'diamante' almost certainly refers to the shape or the playing area, not the stone.
Using the wrong article
Mistake: “La diamante es cara.”
Correction: El diamante es caro. (The diamond is expensive.)
brillante
bree-YAHN-tay/bɾiˈʎante/

Examples
El anillo de compromiso tiene un brillante de dos quilates.
The engagement ring has a two-carat diamond.
Los brillantes que adornan la corona son de la mejor calidad.
The diamonds adorning the crown are of the best quality.
Gender Check
When used as a noun meaning 'diamond,' brillante is always masculine: el brillante (the diamond) and los brillantes (the diamonds).
Diamante vs. Brillante
Related Translations
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