Triangular-shaped markings known as trigons are common in natural diamond. These “birthmarks” formed during growth are signs of a diamond’s ancient origin deep within the earth. The trigons in the figure above form a striking cluster on the faceted girdle and extend into two of the lower girdle facets of a 1.01 ct natural diamond. Even through the cutting and polishing process, these trigons remained on the surface.
Although trigons are not exceedingly rare, the assortment of this many trigons grouped together provides a remarkable portrait created by Mother Nature. The perfection of a diamond is on full display in the angles, luster, and alignment of each trigon.
Triangular-shaped markings known as trigons are common in natural diamond. These “birthmarks” formed during growth are signs of a diamond’s ancient origin deep within the earth. The trigons in the figure above form a striking cluster on the faceted girdle and extend into two of the lower girdle facets of a 1.01 ct natural diamond. Even through the cutting and polishing process, these trigons remained on the surface.
Although trigons are not exceedingly rare, the assortment of this many trigons grouped together provides a remarkable portrait created by Mother Nature. The perfection of a diamond is on full display in the angles, luster, and alignment of each trigon.
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