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diamond rings

About Us

Virendra Kothari established Diagem in 1984 as a loose diamond dealer. With a relentless entrepreneurial spirit, he turned Diagem into a reputable and trusted jewelry manufacturing powerhouse. While working hard to discover the finest gems around the world, he utilized his creative and artistic imagination to design exceptional pieces, creating collections that are timeless, as well as on trend with the current fashion. Today, he continues to grow his company with his two loving daughters by his side, who both are graduates from the Gemological Institute of America.

What Sets Us Apart

We take pride in being a fine jewelry establishment built on strong values and principles. Our sincere customer service, competitive prices and ability to provide an extensive array of fine jewelry is what makes us a consistent trusted supplier to clients around the world. Your experience with Diagem will be nothing less than first class – providing you with the utmost attention and care from start to finish.

Our Diamonds and Colored stones

All of our diamonds and colored stones are acquired from sustainable and ethical sources only. We hand select our supply from trusted sources around the world including the United States as well as India, Thailand, Hong Kong, Israel, and Belgium. Rest assured that our fierce ethical standards ensure that you will only be provided with a finished product that has been created from conflict-free resources.