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"Unveiling the Geological Significance: Trigons in Natural Diamonds"

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March 11, 2024
Trigons are triangular surface features found on natural diamonds. They indicate the diamond's natural origin and are typically observed on the octahedral faces. Trigons form as a result of imperfect steps on the diamond's growing surfaces, caused by the accumulation of interstitial faults in the lattice. These imperfections occur mainly below a certain temperature during the diamond's growth process in the Earth's mantle. Trigons are visually distinct, appearing as overlapping triangles with slightly rounded edges. They act as "band-aids" around inclusions within the diamond and are present in no more than 10% of the diamond's overall structure. While trigons are usually polished off during the diamond cutting process, they may still be visible on naturals or indented naturals of a polished diamond, serving as evidence of its natural origin. Stay tuned for our upcoming blog posts, where we'll delve deeper into specific types of diamond inclusions, their characteristics, and the insights they offer to gemstone enthusiasts and professionals alike. Together, let's embark on a journey of discovery and appreciation for the remarkable beauty and complexity of diamonds.