How long does it take to get an igi diamond certificate?
Nov 04, 2025
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Hey there! I'm an IGI diamonds supplier, and I often get asked, "How long does it take to get an IGI diamond certificate?" Well, let's dive right into it and break down the whole process.
First off, what's an IGI diamond certificate? The International Gemological Institute (IGI) is one of the leading gemological laboratories in the world. Their certificates are like a diamond's official ID card. They detail all the important info about a diamond, such as its cut, color, clarity, and carat weight. This certification gives buyers confidence in the quality and authenticity of the diamond they're purchasing.
Now, the time it takes to get an IGI diamond certificate can vary. There are a few factors that play a role in this, and I'll go through each one of them.
The Type of Diamond
The first thing that affects the certification time is the type of diamond. Natural diamonds and lab-grown diamonds might have slightly different processing times.
Natural Diamonds: These diamonds are mined from the earth, and they've got a long and complex formation history. When a natural diamond comes to the IGI lab, it has to go through a series of meticulous tests. The gemologists need to check for inclusions, measure the dimensions precisely, and analyze the color. This process can take a bit longer because they're dealing with a unique, one-of-a-kind stone. Usually, it can take anywhere from 7 to 14 business days to get a certificate for a natural diamond.
Lab-Grown Diamonds: On the other hand, lab-grown diamonds are created in a controlled environment. They have a more predictable structure compared to natural diamonds. The IGI still has to perform all the necessary tests, but since the growth process is more regulated, the testing might be a bit quicker. For lab-grown diamonds, you can typically expect to get the certificate in about 5 to 10 business days. You can check out some Lab Grown Cushion Cut Diamond options that we offer.
The Volume of Work at the Lab
Another big factor is how busy the IGI lab is. Just like any other business, they have peak seasons and times when they're swamped with work.
During holidays or special events, like Valentine's Day or Christmas, there's a higher demand for diamonds. More people are buying engagement rings or gifts, which means more diamonds need to be certified. When the lab is flooded with samples, it naturally takes longer to process each one. In these peak periods, you might have to wait an extra few days or even a week for your certificate.


Conversely, during slower months, the lab has more capacity to handle the workload. They can process diamonds more quickly, and you might get your certificate in the shorter end of the time range I mentioned earlier.
The Complexity of the Diamond
The complexity of the diamond itself also matters. Some diamonds are more straightforward to evaluate, while others are a real challenge.
Simple Diamonds: If a diamond has a regular shape, like a round brilliant cut, and has relatively few inclusions, it's easier for the gemologists to assess. They can quickly measure the cut, determine the color grade, and check the clarity. These simple diamonds usually get certified faster.
Complex Diamonds: On the other hand, diamonds with unique shapes, like fancy cuts or those with lots of inclusions or unusual color characteristics, take more time. The gemologists have to spend extra time analyzing these features and making accurate assessments. For example, a diamond with a very rare color might need additional testing to confirm its authenticity and grade. These complex diamonds can add a few extra days to the certification process.
The Service Level You Choose
IGI offers different service levels for diamond certification. The standard service is the most common one, and it's what I've been talking about so far. But if you're in a hurry, they also have an expedited service.
Standard Service: This is the regular option. It's cost-effective, and it's suitable for most people who aren't in a rush. As I mentioned earlier, it takes around 5 - 14 business days depending on the factors we discussed.
Expedited Service: If you need your certificate urgently, you can opt for the expedited service. With this option, the lab will prioritize your diamond and try to get the certificate to you as quickly as possible. Usually, you can get your certificate in 1 - 3 business days. However, this service comes at a higher cost. It's a good choice if you're on a tight timeline, like if you're about to propose and you want to have all the paperwork in order.
How We Can Help as a Supplier
As an IGI diamonds supplier, we've got a lot of experience dealing with the certification process. We know how to navigate the different factors and get you the certificate as quickly as possible.
We work closely with the IGI lab to ensure that your diamonds are submitted for certification in a timely manner. We can also help you choose the right service level based on your needs and budget. If you're not sure whether to go for the standard or expedited service, we can give you our expert advice.
We offer a wide range of Gia IGI Certified Diamonds and Lab Grown IGI Certified Diamonds. Whether you're looking for a classic round diamond or a unique fancy cut, we've got you covered. And once you've made your selection, we'll take care of the certification process so you don't have to worry about it.
Wrapping Up
So, to sum it up, the time it takes to get an IGI diamond certificate can range from 5 to 14 business days for standard service, depending on the type of diamond, the volume of work at the lab, the complexity of the diamond, and the service level you choose. If you're in a hurry, you can opt for the expedited service and get your certificate in 1 - 3 business days.
If you're interested in purchasing IGI certified diamonds, we'd love to have a chat with you. Whether you're a jeweler looking to stock up on inventory or an individual searching for the perfect diamond, we can help you find what you need. Just reach out to us, and we'll start the process of getting you the beautiful, certified diamonds you deserve.
References
- International Gemological Institute (IGI) official documentation
- Industry reports on diamond certification processes
