Beyond the 4 C's: Unveiling the Importance of Diamond BGM (Brown,Green,Milky)

At The Classic Jewellers, every piece is more than just jewellery to us. As a family run business, it is our legacy. In this blog, we venture beyond the traditional 4 C's to explore an often overlooked aspect of diamond selection. We will dive into the significance of BGM—Brown, Green, and Milky—in diamonds. Join us on this educational journey as we shed light on the importance of identifying and avoiding BGM to ensure your diamond possesses the desired brilliance and radiance that will leave you in awe.

Beyond the Basics:

While the 4 C's—carat, cut, color, and clarity—serve as the fundamental guidelines for selecting a diamond, there's another crucial element that deserves attention: BGM. Brown, green, and milky undertones can subtly alter a diamond's appearance and affect its overall beauty, yet they are not indicated on the certificate. To truly understand a diamond's character, it is essential to trust the expertise of a renowned jeweler who understands the importance of checking all facets of a diamond beyond the 4 C's. 

Unveiling the Undesirable :

A diamond with BGM may possess exceptional characteristics on paper, meeting all the requirements of the 4 C's. However, when seen in person, you may notice a dullness or lack of sparkle caused by milky opaqueness. Brown and green undertones can also detract from the diamond's brilliance, compromising its overall glory. By avoiding BGM, you can revel in the pure brilliance and radiance of your chosen diamond. Each facet reflects light with unmatched intensity, creating a dazzling display that captivates all who behold it. The absence of brown, green, or milky undertones ensures that your diamond shines with unparalleled splendor, evoking a sense of timeless elegance and luxury.

The Classic Jewellers Difference:

Working with a trusted source is key to avoiding BGM in your diamond selection. At The Classic Jewellers, we understand the importance of finding a diamond that surpasses your expectations. Our commitment to excellence extends beyond the 4 C's, as we go the extra mile to curate a collection free from BGM. We take pride in selecting diamonds that we would personally choose to wear, guaranteeing their extraordinary quality and breathtaking beauty. Our diamonds undergo thorough pre-scans by experienced gemologists to ensure they are free from any undesirable BGM characteristics. With our expertise, we guide you toward diamonds that meet the highest standards of beauty and radiance. 

Book your complimentary in store or virtual consultation with our team of fine jewellery experts here to discover your next forever piece. Our signature diamond ring collection can be viewed here



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94 Gawler Place, Adelaide, SA 5000

Ph: (08) 8225 6108


21-23 Rundle Mall (Shop 6 James Place), Adelaide SA 5000

PH: (08) 7006 5250

Text Us: 0482 092 447

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