Micro-World Gems & Gemology, Spring 2025, Vol. 61, No. 1

Rose-Shaped Cloud Inclusion in Diamond


Rose-shaped cloud inclusion in diamond.
A cloud in a 0.36 ct diamond with SI2 clarity resembling a rose. Photomicrograph by Deepak Raj.

Recently, the authors examined a 0.36 ct diamond with D color and SI2 clarity. The diamond contained a cluster of cloud inclusions arranged to form an interesting pattern (see above). Best observed through the pavilion facets, the inclusion displayed a spiraled, petal-like structure conforming to a triangular outline. Overall, the impurity cloud gave the impression of a delicate rose, a rewarding sight for a gemologist who thoroughly examines their subject.

Satyam Soni is a diamond grader, and Deepak Raj is a training specialist, at GIA in Surat, India.