#1 Diamond Source: Wholesale Diamonds Custom Orders Request

Personal Attention:

Call to consult with
our GIA Gemologist:
646-470-0012

Huge Selection:

50,000+ loose diamonds
GIA or AGS certified
Lowest cost Guarantee
Conflict free diamonds
Excellent, ideal cuts

Finest Service:

Free FedEx ®
Free Appraisal
GIA Gemologist
No-Risk Guarantee
Manufacturing Facility

Members:

Recent Testimonials:

Early Testimonials:

Consult with our GIA Gemologist

We want to help you find the perfect GIA certified diamond and custom set your loose diamond choice in our own factory to your exact specifications at a much lower cost.

Please call us directly and talk to a GIA Graduate Gemologist that will be happy to assist you (at 646-470-0012).
Or, use any of the forms below to ask questions or request more information.

Loose Diamond Information Request

We have a huge inventory of over 50,000 GIA certified loose diamonds. All of our diamonds are conflict free diamonds and guaranteed to originate from ethical and socially responsible sources.

You can check our inventory directly for available stones with specific parameters.
Or, request more information and submit a custom request with the form below.

Loose Diamond Information Request Submit Request

Custom Design Jewelry Request

If you can describe it - We can custom make it for less.

You can directly view our popular engagement ring styles.
Or, submit a custom request with the form below.

Special Order Request Form Submit Request

Inquire about Selling Your Diamonds and Used Diamond Jewelry

We buy used loose diamonds and secondhand diamond jewelry. We pay quick cash for your old diamonds or engagement ring sitting in your home or bank vault.

A detailed description of the process is available at http://www.1diamondsource.com/service/sell
Or, request more information with the form below.

Information to Sell Your Loose Diamond Submit Request

Ask about our Loose Diamonds Polishing and Repair Service

We are diamond cutters, importers, and jewelry manufacturers. We custom cut diamonds and re-polish or fix pre-owned diamonds to optimize their look and value.

A detailed description of the process is available at http://www.1diamondsource.com/service/recut
Or, request more information with the form below.

Information Re-Cut Your Loose Diamond Submit Request

Past Customer Testimonials

CORPORATE OFFICE*: #1 Diamond Source 36 W. 47th St. New York, NY 10036

OFFICE HOURS: M - F 9AM - 6PM (EST) By Appointment

* Selling at wholesale to the trade and retail to the public.