The Importance of GIA Diamond Grading

When you submit your items for consignment at Fortuna, our jewelry experts will give you their best assessment as to what your piece would fetch at auction; there are many factors to consider, such as condition, age, provenance, quality, current market conditions, and rarity. After our primary assessment, we will then discuss with you the possibility of submitting your items for certification at the Gemological Institute of America (GIA).

Why GIA?

Even if you’re not in the diamond industry, you’re probably familiar with the 4 C’s of diamond grading: Color, Clarity, Cut, and Carat Weight. These are objective values of a diamond’s characteristics used to determine the value of a diamond. This now internationally adopted metric was created by GIA, as such, they continue to be the most trusted diamond graders in the industry.

Having a certificate from GIA instills a sense of trust in prospective buyers, for industry professionals know all the extra work a GIA diamond grader puts into collecting information about your stone. They take your diamond or other precious stones out of their mounting and inspect them from every possible angle. A certificate from GIA will increase the value of your item, not because the item is suddenly any different, but because it has undergone a much more thorough inspection by multiple seasoned professionals. After your stones have been observed by all the available channels, your stones will be placed back in their original mounting, exactly how they were before; this is true for big stones on rings, and for small diamonds around a bracelet. GIA reports are not appraisals they are an objective assessment of a diamond’s quality, information which appraisers then use in assigning value.

In addition to a diamond’s 4Cs information, the Diamond Grading Report provides a plotted diagram of the stone’s clarity characteristics and a graphic representation of its proportions, information which serves to identify the individual stone.

Should I get a GIA Report before submitting my items for consignment?

The simple answer is, no. When submitting your items for consignment you should always send us any reports, certifications, proofs of purchase that you already have that could contribute to the value of your item. However, you don’t have to worry about sending your items to GIA, here at Fortuna we provide a preliminary assessment, and then through discussion with you, decide whether a GIA report is necessary to better sell your item. We will never take your item to GIA without your express permission. Once we have the go-ahead from you, we will personally take your item to GIA, pick it up when the report is finished, and make all the arrangements for carefully un-mounting and re-mounting your stone. GIA reports are not always necessary depending on the item, and they also take time to acquire. It is always best to get a professional opinion first, and with Fortuna, we help you take care of all the details.