Meaning of Matara diamond in English:

Matara diamond

Pronunciation /ˌmɑːtərə ˈdʌɪ(ə)mənd/

noun

(also Matura diamond)
  • A colourless or smoky variety of zircon used as a gem; = "jargon".

Origin

Early 19th century. From Matara, the name of a town (formerly also called Matura) in Sri Lanka + diamond.