Because of each country's product availability, the selection on this site may not be the same as the one you were previously on.Confirm Cancel
Due to recent regulations concerning the importation of precious stones and jewelry into Mexico, please note that some orders will require a formal customs broker to assist with clearance through customs. Please contact a Diamond & Jewelry Consultant for more information regarding these new rules and to assist with any questions you may have about your purchase. Diamond and Jewelry Consultants are available and can be reached toll free at 01-800-681-8179 or via email at firstname.lastname@example.org.
Debido a las recientes regulaciones relativas a la importación de piedras preciosas y joyería a México, tenga en cuenta que algunos pedidos necesitaran un agente aduanal para ayudar con el despacho de aduanas. Por favor, póngase en contacto con un asesor de diamantes y joyería, para obtener más información sobre estas nuevas reglas y para ayudarle con cualquier otra pregunta acerca de su compra. Los asesores en español, están disponibles llamando al 01-800-681-6717 (llamada sin cargo) o por vía electrónica a email@example.com.
What is a Certificate?
Blue Nile Diamonds are Certified
Every loose diamond sold by Blue Nile has been analyzed and graded by either the Gemological Institute of America (GIA) or the American Gem Society Laboratories (AGSL). These two laboratories are among the most respected laboratories in the diamond industry, and are known for their consistency and unbiased diamond grading systems. Diamonds that are accompanied by these grading reports are the most highly valued in the industry.
In addition to being graded by either the GIA or the AGSL, all Blue Nile Signature Collection diamonds are certified by GCAL. This additional certification provides a second independent and authoritative analysis of your diamond. GCAL also verifies that your diamond meets all of the demanding quality requirements of the Blue Nile Signature Collection diamonds.
View Certificates While Shopping
If you are interested in a diamond and a certificate is not available for viewing on the site, simply contact a diamond and jewelry consultant at firstname.lastname@example.org or 01 800 681 8179.
More About Cut
Blue Nile uses cut grades provided by GIA and AGSL whenever these are available. Many diamonds graded by the GIA prior to January 1st, 2006 do not have such grading. If a cut grade is not provided by one of these laboratories, Blue Nile defaults to a proportion system that uses measurements of depth and table to determine the amount of brilliance in a particular diamond’s cut. Learn more about how Blue Nile provides cut grades that allow you to compare diamonds using consistent criteria.