Book Appointment
IGI & GIA Certified Diamonds
10,000+ Stones in Stock
Same-Day Shipping from New York
Live Wholesale Pricing
Antique & Rare Cuts Available
API & Inventory Integration
Offices in NYC & Los Angeles
Memo Terms for Trade Buyers
JCK 2026 — Booth #5109 (May 29–Jun 1)
The Diamond Revolution
Discover diamonds presented with exceptional clarity so you know exactly what you're getting.
Inventory Access
Access a constantly updated inventory of loose lab-grown diamonds built for
wholesale buyers.
Access 10,000+ Loose Lab-Grown Diamonds:
HD videos
Download Stock List
Live pricing
Connect via API
Daily Updated Stock
Join WhatsApp Broadcast
Leading Buyers Work With Guru Diam
Trusted by jewelers, retailers, and manufacturers for certified diamonds, reliable supply, and competitive wholesale pricing.
IGI / GIA Certified Stones
USA & India Offices
Same-Day Shipping
Custom Sourcing Available
Antique & Unique Cuts Not Found Anywhere Else
Best Pricing for Volume Orders
Quick Access to Wholesale
Diamond Stock
Browse certified loose diamonds built for professional
buyers and fast sourcing.
Fresh Arrivals
Freshly updated wholesale stock of certified lab-grown diamonds, added daily.
The Global Diamond Trade
Supplying certified lab-grown diamonds to
jewelers, designers, retailers, and manufacturers worldwide.
Retailers
Jewelers
Designers
Manufacturers
Wholesale Access Only
Pricing, inventory tools, and downloads are available
exclusively to verified trade buyers.
- Live Wholesale Pricing
- Downloadable Stock Lists
- API & Integration Tools
- WhatsApp Daily Inventory Updates
- Priority Sourcing Support
Our Trade Partners Say
Feedback from professionals who rely on Guru Diam for consistent wholesale supply.
Laura K.
Retail Jewelry Buyer
Wholesale pricing remains competitive, especially for volume orders. Stock updates are timely, which helps us plan purchases with confidence.
Michael R.
Jewelry Buyer
The consistency in diamond quality and grading accuracy has made our production process much smoother and more reliable.
James K.
Diamond Trader
Reliable service and transparent communication. Orders are processed quickly, and delivery timelines are always met.
Sophie L.
Retail Jewelry Buyer
Their inventory is always well-curated, and the detailed specifications help us make quick and confident purchasing decisions.
Daniel H.
Wholesale Diamond Trader
Custom sourcing requests are handled efficiently, even when we need specific sizes, colors, or layouts within tight timelines.
Emily R.
Luxury Boutique Buyer, UK
Their curated selections and fast certifications help us keep our premium clientele happy without delays.
Laura K.
Retail Jewelry Buyer
Wholesale pricing remains competitive, especially for volume orders. Stock updates are timely, which helps us plan purchases with confidence.
Michael R.
Jewelry Buyer
The consistency in diamond quality and grading accuracy has made our production process much smoother and more reliable.
Built for Jewelers
Professional sourcing tools designed to support speed, scale, and accuracy.
API
Integration
CSV / Excel
Stock Download
WhatsApp Daily
Inventory Updates
HD Photos &
Accurate Videos
Custom Layout
Service
Matching Pair
Service
