Buy blue sapphire online and you know One of the best things about blue sapphire is that it never goes out of style. The best blue sapphire in Delhi. Gemstones Wholesalers | Online Gemstones Wholesalers Dealers | SNJ Group was established in 1968 by Sadar NIRVAIR Singh Johari who itself is the owner of the group. He started his business activities from a small town in U.P & like a born businessman he established Gemstones Wholesalers SNJ group in Jaipur. Gemstones Wholesalers S.NIRVAIR SINGH JEWELLERS (Karol bagh) is also founded by him, it was established in 1999. Business activities are taken under AMARJEET SINGH who is the proprietor of Karol Bagh Branch. He is in the trade from the past 35 years, his main aim is to multiply his father’s goodwill & to carry on the given legacy.