Blue Sapphire is one of the top three precious gemstones. Hence, it is quite likely to come with a hefty price tag. Sapphire is one of the most sought-after gemstones. Its durability and rarity make it one of the most adored gems of jewelry buffs. At Rashi Ratan Bhagya we share the most 10 tips to know before buying the perfect blue gemstone. Our experts will help you pick the sapphire of your dreams.