Natural Topaz stone accompanied by a certificate of authentication and examination for the gemstone issued by (GBS) Laboratory for Diamond and Gemstone Sciences and Rudraksh Research Center. The certificate confirms that the stone is a Natural Blue Topaz weighing 4.84 carats. The examination document includes the complete physical and chemical specifications of this stone, as follows: Gemstone Specifications (mentioned in the certificate): Stone Type: Natural Blue Topaz. Carat Weight: 4.84 carats. Shape and Cut: Concave Cut. Condition: Unmounted - loose stone in its casing. Color: Blue. Refractive Index: 1.61 - 1.63. Specific Gravity: 3.53 - 3.56. Hardness: 8.00 on the Mohs scale. Microscope Observation: Identified To Natural. Indian Trade Name: Topaza Price: 250 Riyals Acquisition - Gift - Setting on a ring or pendant ⭐⭐⭐ Very pure and distinctive grade ⭐⭐ 🤔