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20+ Years Trusted
Free Shipping
30-Day Returns
GIA Certified
Secure Checkout

What makes one diamond worth more than another? How do you get exceptional quality and value? Click HERE to learn about the four C's (cut, color, clarity, and carat weight), which characteristics are most important, and how they affect appearance and price. Understanding the diamond essentials allows you to shop with confidence. 

For more information, email us at sales@katarina.com or call our Customer Service Center at 888-528-2746.