India unearths rare 'Beating Heart' diamond within a diamond.
A diamond manufacturer in India's Surat has unearthed a unique 0.329-carat diamond named 'Beating Heart', which consists of a piece of diamond with a smaller freely-moving piece trapped inside. The Gem & Jewellery Export Promotion Council confirmed the authenticity of the stone via further analysis, using optical and electron microscopes. The 'Beating Heart' joins a little group of similar natural diamonds such as the Matryoshka diamond from Siberia, which was first recorded in 2019.