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Business Details
50+ Years
experience
Your Trusted Diamond & Jewelry Partner Since 1926
N. D. Reiff Company has been a trusted name in the diamond and jewelry industry since 1926. Our legacy began as a trade shop serving jewelers and has evolved into becoming one of the premier diamond importers and wholesalers in the United States. Located in Philadelphia's historic Jeweler's Row, we combine global partnerships with cutting-edge technology to deliver exceptional diamonds and fine jewelry to retailers and trade professionals. Our expertise lies in sourcing natural diamonds from major cutting centers worldwide, with most stones accompanied by Gemological Institute of America (GIA) certification. We maintain rigorous quality standards that exceed laboratory reports, ensuring every diamond we offer embodies brilliance, purity, and natural beauty.

Our product range includes engagement rings, wedding bands, stud earrings, necklaces, bracelets, and custom fine jewelry pieces. As a fourth- and fifth-generation family business, we prioritize personalized service while maintaining our commitment to ethical sourcing and customer satisfaction. Our team's deep industry knowledge enables us to guide clients through selecting diamonds that balance certification with visual appeal. We specialize in both round and fancy-shaped diamonds, offering unique settings that enhance each stone's natural characteristics. Our Philadelphia location remains the heart of our operations, serving as a hub for serious diamond buyers and jewelry professionals seeking quality and reliability.
Services
GIA Certified Diamonds Diamond Engagement Rings Fine Jewelry Manufacturing Loose Diamond Sales Wholesale Services Custom Jewelry Design Wedding Rings Diamond Earrings Diamond Necklaces Diamond Bracelets
Details
  • Year established: 1926
Highlights and features
  • We offer over 95 years of specialized diamond industry expertise
  • Our diamonds undergo inspection beyond laboratory certification standards
  • We maintain America's original diamond district location with global connections
  • We provide full transparency about diamond characteristics and pricing
  • Our inventory includes rare fancy-shaped and antique-cut diamonds
Associations and certifications
  • Gemological Institute of America (GIA)
Services
GIA Certified Diamonds
We provide GIA-certified natural diamonds with documentation guaranteeing quality and authenticity. Our inventory includes round brilliants and fancy shapes like emerald, oval, and cushion cuts. Each diamond undergoes additional visual inspection to ensure superior brilliance beyond laboratory reports.
Diamond Engagement Rings
Our collection features custom-designed engagement rings with GIA-certified center stones. Options include three-stone settings, hidden halos, and vintage-inspired designs using platinum and 18K gold combinations. We offer both ready-made and custom creations.
Fine Jewelry Manufacturing
We create finished fine jewelry pieces including wedding bands, diamond earrings, necklaces, and bracelets. Our manufacturing process combines traditional craftsmanship with modern technology to produce high-quality wearable art from one-of-a-kind designs.
Loose Diamond Sales
We offer a curated selection of loose diamonds ranging from 1.00ct to 5.00ct+. Our inventory includes both modern and antique cuts with price points from $3,300 to $135,000. Customers can view stones in person or through detailed digital imaging.
Wholesale Services
We serve jewelry retailers with bulk diamond and jewelry purchases. Our trade services include access to exclusive inventory, competitive pricing, and personalized support for jewelers seeking premium products for their customers.
Questions
What types of diamonds do you specialize in?
We specialize in natural GIA-certified diamonds including round brilliants, fancy shapes, and antique cuts like old mine and European diamonds.
Do you offer wholesale services for jewelers?
Yes, we've served jewelry trade professionals since 1926 with diamond inventory and finished jewelry for retail operations.
Are your diamonds ethically sourced?
We maintain strict sourcing standards and can provide documentation for diamond origins upon request.
Do you create custom jewelry designs?
Yes, our team can create custom engagement rings and fine jewelry pieces tailored to specific requirements.
What sets your diamonds apart from competitors?
We inspect diamonds beyond laboratory reports to ensure superior cut quality and visual appeal.
Where is your showroom located?
Our main location is at 740 Sansom Street, Suite 604, Philadelphia, PA 19106 in the historic Jeweler's Row district.