Inclusion of an orange pyrope almandine garnet crystal in a diamond

We recently received for analysis a brilliant round diamond weighing 1.81 carats. Graded P3 in clarity, this gemstone contained various inclusions, including a small group of closely associated prismatic crystals with a vivid orange color. Thanks to their relatively large size, these crystals were identified by Raman spectroscopy as pyrope almandine, a species of garnet.

Explore more gemological discoveries and insights in the latest issue of Gemmes Revue from Gemmologie et Francophonie.

🔬 Micrograph: Féodor Blumentritt, GGTL Laboratories Switzerland.

Do you need this micrograph in full resolution for an article, a DUG dissertation, etc.? Do not hesitate to contact us.