Certified loose diamonds

Loose lab-grown & natural diamonds

Search certified loose diamonds by shape, carat, color, clarity and cut. Every stone comes with its IGI or GIA grading report.

  • Independently certified by IGI or GIA
  • Fully insured, tracked delivery
  • Concierge guidance before you choose
  • 30-day returns on unworn stones
  • Independently certified by IGI or GIA
  • Fully insured, tracked delivery
  • Concierge guidance before you choose
  • 30-day returns on unworn stones

Diamond questions

Buying a diamond, made simple

Need help choosing? Our team replies within one business day.

Talk to a specialistWe'll help you compare stones.
What is the difference between lab-grown and natural diamonds?

Lab-grown diamonds have the same chemical, physical and optical properties as natural diamonds. The difference is origin: one is grown in a controlled environment, the other formed in the earth. Both are graded by the same laboratories.

Are your diamonds certified?

Yes. Each diamond listed is accompanied by a grading report from IGI or GIA, and the report number is shown on the diamond's page.

Can I set a loose diamond into a ring?

Yes. Contact our team with the diamond you love and we'll guide you through setting options.

How is my diamond shipped?

Diamonds ship fully insured with signature on delivery and full tracking.