Online loose diamond dealer

Source certified loose diamonds and sell them to jewelers and private buyers online and by appointment.

Loose cut diamonds spread on a dealer's velvet tray under light.
Startup cost$5k to $25k
Monthly revenue$2k to $10k
Time needed15+ h/week
First incomeMonths
  • $5k-25k
  • Part-time
  • Online

Estimates for a small start in the US, not guarantees.

Official data

6,949 US businesses with employees in this field, -0.2% in a year

NAICS 423940 “Jewelry, watch, precious stone, and precious metal merchant wholesalers”. Source: U.S. Census Bureau, County Business Patterns 2023.

What it is

A small dealer business that sources certified loose diamonds from wholesalers, often on memo (you pay only when a piece sells), then lists them online and sells to independent jewelers, designers and engagement ring shoppers.

Your first three steps

  1. Take a diamond grading course (for example through GIA) and learn to read lab reports
  2. Open accounts with a few wholesalers and ask about memo terms and minimum purchases
  3. Build a simple site or marketplace listings with lab-certified stones, and contact local independent jewelers to offer sourcing
Who pays

Independent jewelers and designers who need stones without holding stock, and private buyers looking for a ring stone at a fair price.

How it makes money

You earn the margin between your wholesale cost and your selling price on each stone, sometimes plus a fee for sourcing a specific stone on request.

Skills that help
  • Grading knowledge (cut, color, clarity, carat)
  • Negotiating with suppliers and buyers
  • Building trust and clear communication
  • Careful record keeping
Watch out for
  • Anti-money laundering rules: check whether your purchase and sale volumes require a compliance program under federal rules for dealers in precious stones
  • FTC Jewelry Guides on describing diamonds, including clear disclosure of lab-grown versus natural and any treatments
  • Conflict diamond sourcing: check suppliers' policies and paperwork
  • Jewelers block or inventory insurance for stones in transit and storage, as general liability alone may not cover them
  • Sales tax registration and resale certificates: check with your state
  • Fraud risk when shipping and taking large payments, so use insured shipping and secure payment methods
  • Margins can be thin and stock can lose value, so keep inventory small at first

Deep research report · US

Everything you need to start: online loose diamond dealer

Researched with live web search for United States: real startup prices, the licences and rules, what others charge, a break-even example, how to find your first customers and a 30-day launch plan. With sources.

  • Startup costs with real prices
  • Licences, registration and rules
  • Pricing: what others charge
  • Break-even example
  • Finding your first customers
  • 30-day launch plan
  • Risks and how to reduce them
Ready in about 2 minutes · one-off payment, tax included

See a full sample report

Questions people ask

How much does it cost to start a loose diamond business?

Estimates suggest startup costs typically around $5,000 to $25,000, depending on how much stock you hold, insurance and your website. Margins can be thin and stock can lose value, so keep inventory small at first.

What rules should I check before selling diamonds online?

Check whether your volumes require an anti-money laundering compliance program under federal rules for dealers in precious stones. Also check FTC Jewelry Guides on describing diamonds, including lab-grown versus natural, and sales tax registration with your state.

How much revenue can an online diamond dealer make?

Estimated monthly revenue is typically around $2,000 to $10,000, depending on stock, supplier terms and how many jewelers and private buyers you reach. Estimates suggest a minimum of around 15 hours a week.

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