Gemstone: Natural Blue Sapphire Weight(Carats): 19.18 Weight(Ratti): 21.31 Refractive Index: 1.76 Specific Gravity: 3.99 Origin: Madagascar Cut: Cushion Dimensions: 16.1 × 14.9 × 8.2 mm Color: Deep Royal Blue Clarity: High transparency Treatment: HEATED According to Vedic astrology, Blue Sapphire (Neelam) is the gemstone of Lord Shani (Saturn).Wearing a natural blue sapphire may: Bring success, discipline, and stability Support career…