Official gia color scale.
Gia diamond grading chart price.
It is our opinion that gia has the most accurate and valuable standards that ensure proper quality in a diamond.
The gia laboratory issues diamond grading reports for loose natural diamonds in the d to z color range that weigh 0 15 carats or more.
This short video explains the gia clarity scale and how gia classifies diamonds with a clarity grade ranging from flawless to i 3 by using a 10x magnification loupe and a microscope to see and plot the diamond s inclusions.
Diamond grading reports are issued by independent gemological laboratories.
The second section of this article will explain how diamond prices are determined and calculated.
Gia diamond grading scales.
With report check you can quickly and conveniently confirm that the information on your report matches what is archived in the gia report database.
While there are several grading laboratories washington diamond sells diamonds that are graded only by the gemological institute of america gia gia edu.
Diamond 4cs and gemstone information.
The wholesale and retail prices chart below is petra gems best average estimates based on data of leading diamond suppliers and.
The world s foremost authority in gemology established in 1931 gia protects the public through gemological research education impartial gem identification and grading services and instrument development.
Gia diamond grading reports are not issued for laboratory grown diamonds diamond simulants mounted diamonds or those that have undergone unstable treatments such as fracture filling or coating.
Diamonds diamond grading gem identification jewelry essentials.
Gia reports represent the highest standard of reliability consistency and integrity.
In this post you can learn about and download the official gia color scale work with an interactive diamond color chart to see the relationship between grades and colors and watch a useful gia diamond color grading video to see how gia evaluates diamond color.
View all the latest promotions for our diamond grading services.
This price index for 1 carat 1 5 carat 2 carat and 3 carat diamonds will be updated periodically to reflect changing retail and wholesale diamond prices.
Many inclusions and blemishes are too tiny to be seen by anyone other than a trained diamond grader.
The universal measure of quality march 14 2013 the prospect of purchasing a diamond may seem daunting but through gia an unbiased authority on diamonds you have several handy resources to help you select the highest quality diamond.