Welcome to The Clear Cut Classroom where we take deep dives into all things diamonds (and jewelry)! In this episode, we tell you all about BGM (Brown, Green, and Milky). You'll learn what BGM really is, ways to avoid it, and The Clear Cut's pro-tips to go about finding the perfect diamond for you!

Watch the full video below:


By now, you probably know all about the 4 C’s: carat, cut, color and clarity are the main things to look out for. But there’s something else that is SO important to look out for in order to ensure that your diamond does have a funky color. Essentially, BGM stands for Brown, Green, and Milky. It means that sometimes a diamond can have a brown-green undertone or a milky opaqueness. No one wants that!! BGM is something that is not indicated on the certificate. It is SO important to see the diamond in person in order to make sure that you don’t have BGM or work with a trusted expert, like us here at The Clear Cut. A diamond with these undertones can have great stats in terms of the 4 C’s -- it can be everything that you wanted on paper. But if you see it in person, you could notice a milkiness that dulls the sparkle, or dark hues you definitely don’t want! 

In order to ensure that your diamond does not have BGM, you must work with a trusted source. Here at The Clear Cut, we pre-scan all our diamonds with gemologists so we only show you diamonds with no BGM. We’ll only curate diamonds we want to wear ourselves!!

Questions on BGM? Let us know in the comments below!! 

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