The Gemological Institute of America (GIA) has recently examined two diamonds featuring rare star-shaped inclusions. Weighing 8.14 and 8.57 carats respectively, these diamonds, referred to as asteriated or “star” diamonds, were highlighted in the summer 2024 edition of Gems & Gemology. The discovery is notable for both the size of the stones and their preserved natural forms, providing insights into the geological history of diamond formation.Asteriated Diamonds: Composition and FeaturesBoth diamonds displayed light brown cloud inclusions, a phenomenon caused by high concentrations of hydrogen and nickel during the diamond growth process. Inclusions of this type, which may also contain graphite, are rare…

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