Minerals

noun a precious stone consisting of a clear and typically colorless crystalline form of pure carbon

• The diamond is a precious gemstone that is highly valued for its clarity and brilliance.
• She was ecstatic when her boyfriend gave her a diamond ring for their anniversary.
• That car is a real diamond, it's a beauty!
• Her voice was like a diamond, clear and pure.

noun a green variety of chalcedony, used as a gemstone

• The jeweler showcased a stunning chrysoprase necklace at the exhibition.
• I bought a cute chrysoprase ring from the boutique yesterday.
• Check out this rad chrysoprase bracelet I found online!
• Her eyes sparkled like chrysoprase in the sunlight.