The GIA are the creators of the 4’c of diamond grading. All of our bespoke engagement rings and diamond jewellery that are set with a diamonds weighing more than 0.2 carat will come with a GIA diamonds dossier or diamond grading report. Both will give you vital information about your diamond so you are able to decide if its right for you. We can teach you how to read and translate the report.

What is a GIA Diamond?

GIA stands for the Gemological Institute of America, which is a nonprofit organization that is considered the world’s leading authority on diamonds and other gemstones. GIA has established a set of standards for evaluating diamonds, known as the “4 Cs” – carat weight, color, clarity, and cut – that have become the industry standard.

GIA diamonds are diamonds that have been graded by the Gemological Institute of America. GIA assigns a grade to each of the 4 Cs based on an objective analysis of the diamond’s characteristics. This allows buyers to make informed decisions when purchasing a diamond, knowing exactly what they are getting.

One of the key benefits of buying a GIA diamond is that the grading report is widely recognized and respected in the diamond industry. This means that the information provided on the report is trustworthy and accurate. It also means that the diamond’s value can be accurately determined based on its specific characteristics. You can check your by going to the GIA Report check landing.

GIA also has a strict set of ethical standards that they follow in their diamond grading process. This ensures that the diamonds they grade have been sourced ethically and are conflict-free.

Overall, buying a GIA diamonds can provide confidence in the quality and value of the diamond, as well as assurance that it has been ethically sourced.

Up until recently the GIA only certified natural diamonds, however they are now starting to grade lab grown diamonds as well as IGI who are another laboratory that grades both natural and lab created diamonds.

When a laboratory grown diamond is sent to the GIA laboratory, it is assessed to identify if it’s lab created or natural. Then the gemmologist will check it using the according to the 4C’s standard. The GIA gemmologist will check each laboratory grown diamond with the same approach to natural diamonds. The GIA Laboratory-Grown Diamond Report will show you the information on carat weight, color and clarity and depending on the shape of the diamond the Cut grade.

Are GIA Diamonds worth more?

While GIA doesn’t really affect the intrinsic value of a diamond, it can have a significant impact on the perceived value and marketability of the diamond.

Diamonds that are graded by the GIA are in general more valuable and in higher demand than diamonds that are not certified.

Also, GIA’s reputation for accuracy and consistency in grading diamonds has made its reports highly trusted in the diamond industry. As a result, GIA-certified diamonds are often more expensive than non-certified diamonds of similar quality and characteristics.

It’s important to understand that the value of a diamond depends on number factors beyond its GIA certification, such as its size, shape, rarity, and overall quality. Some diamonds can have abnormal tinges to them, have surface reaching inclusions and a variety of other factors that may alter the value. Therefore, it’s always advisable to do your research and book an appointment with us to go into further details about this.

If you require clarification on the differences between natural and lab grown diamonds please check out our diamonds education or contact us to book an appointment or arrange a call for a quick chat. Si Vis Amari are experts in this field and we will be happy to share our knowledge in simple terms that give reassurance as to what sort of diamond to choose for your engagement ring or diamond jewellery.


Certification. Don’t buy a diamond without a GIA certificate, its your only guarantee that what you have purchased has been accurately assessed.


They exist to protect consumers buying diamonds so one you can rest assured that what ever has been purchased has been properly graded. They are not affiliated to any jewellers.


You can authenticate your certificate online by typing in your report number into the GIA website to check the validity of your diamond and report.

The GIA are the leading authority on diamond grading, the reports are detailed and will provide you with all the information required to make an educated decision. Its useful to discuss your GIA diamond dossier or grading report with an experienced jeweller so you can understand how and expert will read the information.

Call for an informal chat or to book an appointment at our Didsbury or Manchester city centre Showroom

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