The Story
From Mumbai's Zaveri Bazaar to the world's vaults.
JNJ was founded by three generations of gemstone traders who believed the industry needed a house that stood for three things above all — verified provenance, honest grading, and long relationships.
We started with Burmese rubies and Ceylonese sapphires. Today, our inventory spans the full spectrum of investment-grade coloured stones and diamonds — but our principle is unchanged. Every stone has a story we can tell, a certificate we can show, and a price we can defend.
Our clients return not because we sell them stones, but because we help them build collections. That difference is the business.
