Verify the Seller: Check reviews and certifications of the retailer.
Check Certification: Ensure the diamond has GIA or AGS certification.
Review Return Policies: Understand the return and exchange options.
Compare Prices: Compare prices but avoid deals that seem too good to be true.
Inspect the 4Cs: Confirm details on Cut, Color, Clarity, and Carat.
Secure Payment: Use secure payment methods to protect your information.