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Crafted for the moments you will carry forever.
DIAHART Chennai
Open Now#1, Masilamani Street, T. Nagar, Chennai 600017
09:00 AM – 8:45 PM
Apply for a Franchise
Fill in the form and our franchise team will reach out within 48 hours with a personalised proposal and city-specific revenue model.
Submit Interest
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Discovery Call
Our team walks you through the model.
Site Visit & Approval
We evaluate your proposed location together.
Agreement & Launch
Sign, set up, and open within 30 days.

Support
Your Questions Answered
Lab grown diamonds are physically and chemically identical to mined diamonds — created in a controlled environment replicating natural geological processes. They carry the same brilliance, hardness (10 on Mohs scale), and IGI/GIA certification.
Most orders are crafted and delivered within 2-3 weeks, depending on the piece and any customisation requested. You'll receive tracking details as soon as your order ships.
We offer a 30-day return and exchange window on all unworn, unaltered pieces in their original packaging. Custom and engraved items are final sale unless faulty.
Yes — most designs can be customised in metal, carat weight, and stone shape. Reach out to our team and we'll guide you through the options for your chosen piece.
Our jewellery is IGI certified, while solitaire diamonds are independently certified by either IGI or GIA, giving you complete assurance of their cut, clarity, colour, and carat.