Natural & Lab-Grown Polished Diamonds
Certified diamonds,
traded with precision.
PHS Diamond sources, grades, and supplies natural and lab-grown polished diamonds. Every stone is backed by GIA or IGI certification and priced for the trade.
Our Story
25+ years in the diamond trade.
Founded by Piyush H. Shah, PHS Diamond began as a single trading desk in Mumbai over 25 years ago. What started with one office has grown into a trade network built city by city — one certified stone and one trusted relationship at a time. Today we deal in both natural and lab-grown polished diamonds, supplying manufacturers and retailers who need consistent quality and dependable stock.
Sourcing
Two sources, one standard.
Every stone we offer — mined or grown — is graded and verified to the same standard before it reaches you.
Natural Diamonds
Formed over billions of years under the earth's mantle, each natural diamond is one of a kind. We source through a vetted network of cutters and traders, verifying origin and grading before every purchase.
Lab-Grown Diamonds
Chemically, physically and optically identical to natural diamonds — grown in controlled conditions using CVD and HPHT methods. A more accessible route to the same brilliance, fire and durability.
Certification
Graded on the 4Cs.
Every certificate we pass on to you tells you exactly what you're buying.
Cut
How precisely a diamond is faceted — the single biggest factor in how it catches and returns light.
Color
Graded D (colorless) to Z (light yellow). The less body color, the rarer and more valuable the stone.
Clarity
Rated from Flawless to Included, based on the size, number and visibility of natural inclusions.
Carat
A diamond's weight — one carat equals 0.2 grams. Larger stones become exponentially rarer.
Collection
Current stock, 81 stones.
Lab-grown polished diamonds, updated from our internal register. Filter by shape, availability, or sort by price and carat.
Contact
Get in touch.
For stone-specific pricing, add items to your inquiry and send it through — or reach us directly below.
- Head OfficeBandra Kurla Complex (BKC), Bandra, Mumbai
Also present in Kolkata, Hyderabad, Bengaluru & Delhi - Phone+91 84338 89982 / +91 84338 89981
- Emailpiyushhimatlalshah@gmail.com
- HoursDaily, 9:00 AM – 8:00 PM
- GSTIN27ATIPS1757K1Z3