1.53 cts Cushion Cut Red Ruby Loose Gemstone Unheated | GRS CertifiedThis 1. 53 carat cushion cut ruby pulses with a vivid to deep red hue that is incredibly captivating. This color really sets it apart. Rubies of a natural origin of this kind and color specimen are quite rare. The cushion cut, with its pillowed edges increases the brilliance of the gemstone showcasing its color play. The GRS certification is a testament to this ruby's quality and genuineness, providing assurance by some of the world's best