What you need to know before you buy lab-grown versus natural diamonds

Get to know all you need about diamond – the history, facts, quality factors, treatments, imitations and much more here at GIA.

A diamond is a mineral composed of pure carbon. It is the hardest naturally occurring substance known; it is also the most popular gemstone. Because of their extreme hardness, diamonds have a number of important industrial applications.

NJ.com: Is a lab-grown diamond a ‘real’ diamond? Here’s what buyers should know

Is a lab-grown diamond a ‘real’ diamond? Here’s what buyers should know

The meaning of KNOW is to perceive directly : have direct cognition of. How to use know in a sentence.

KNOW definition: 1. to have information in your mind: 2. used to ask someone to tell you a piece of information…. Learn more.

Define know. know synonyms, know pronunciation, know translation, English dictionary definition of know. to understand as true: I know the sun will come up tomorrow.; to be aware of: I know his eyes are green.; to be acquainted with: I know her sister.

know1 (nō), v., knew, known, know ing, n. v.t. to perceive or understand as fact or truth; to apprehend clearly and with certainty: I know the situation fully. to have established or fixed in the mind or memory: to know a poem by heart; Do you know the way to the park from here? to be cognizant or aware of: I know it. be acquainted with (a thing, place, person, etc.), as by sight ...