Our Story
A Name Synonymous with Diamonds
For over three decades, Vidyadhar Sumant Assosciates has stood at the intersection of expertise, integrity, and an enduring passion for the world's most extraordinary gemstone.
The Beginning
Born in the Heart of Mumbai's Diamond District
Vidyadhar Sumant Assosciates was founded in Mumbai — the city that has long been the beating heart of India's diamond trade. What began as a modest enterprise built on deep personal knowledge of gemstones has grown, over three decades, into one of the most respected names in the industry.
Our founder brought to the trade something that cannot be taught in any classroom: an instinctive understanding of what makes a diamond exceptional. That sensibility — part science, part art — has been the cornerstone of everything we do.
Today, we serve a diverse clientele that spans wholesale jewellers, retail buyers, private collectors, and institutions. Across every transaction, the standard remains the same: uncompromising quality, transparent dealings, and the kind of personal service that only comes from genuine expertise.
What We Stand For
Our Values
01
Integrity
Every transaction is conducted with complete transparency. We believe our clients deserve to know exactly what they are buying — and why it is worth what we say it is.
02
Expertise
Thirty years in the diamond trade is not merely experience — it is a depth of knowledge that shapes every recommendation, every valuation, and every selection we make.
03
Excellence
We do not deal in average. Every diamond we offer has been examined, assessed, and selected because it meets the exacting standards we have maintained since our founding.
04
Relationships
Our most valued asset is the trust our clients place in us. Many of our relationships span decades — a testament to the consistency and reliability that define how we work.
Leadership
The Expertise Behind the Name
Vidyadhar Sumant
Founder & Principal
With over 30 years in the diamond trade, Vidyadhar Sumant built this firm on a foundation of deep gemological knowledge and an unwavering commitment to quality. His expertise spans sourcing, grading, valuation, and bespoke design.
Senior Gemologist
Head of Grading & Certification
Our lead gemologist brings GIA-certified expertise to every stone that passes through our doors. Rigorous, precise, and deeply experienced — the standard-bearer for our quality assurance process.
Our Credentials
Certified. Trusted. Authoritative.
Every diamond we offer is backed by internationally recognised certification. We work exclusively with the world's most respected gemological laboratories, ensuring that every grading report you receive is accurate, impartial, and authoritative.
Gemological Institute of America
The world's foremost authority on diamonds. GIA certification is the global benchmark for diamond grading — the standard against which all others are measured.
International Gemological Institute
One of the world's largest independent gem certification and appraisal institutes, with a reputation built on rigorous, consistent grading standards.
Hoge Raad voor Diamant
Antwerp's prestigious diamond certification body, recognised globally for its exacting standards and long history of gemological excellence.