I1 Diamonds: Meaning, Characteristics, Quality, and Prices

What are I1 Diamonds

I1 diamonds refer to diamonds that have inclusions visible to the naked eye. These inclusions may affect the diamond’s clarity and overall appearance. While they are generally less expensive, it is important to carefully consider their quality before making a purchase decision.

  • I1 diamonds are a specific grade of diamond clarity, indicating that they have inclusions visible to the naked eye. These inclusions can range from small black spots or lines to larger and more noticeable flaws within the diamond. The visibility of these inclusions may vary depending on the size and location within the stone.
  • I1 diamonds are generally considered lower quality compared to higher clarity grades such as VVS or VS.
  • I1 diamonds are usually more affordable than higher-grade options.
  • The visibility of inclusions can greatly impact its overall appearance and value.

Understand the Meaning and  Characteristics of I1 Diamonds

I1 diamonds have one of the lowest levels of clarity. That’s why they are easy to find. It is more difficult to find diamonds that are flawless.

These diamonds are still a good option. You should be aware of their flaws before buying them. Depending on the setting, you might not notice the flaws.

IGI Certified 14k White Gold Diamond Two Stone Plus Engagement Ring (H-I Color, I1-I2 Clarity)
IGI Certified 14k White Gold Diamond Two Stone Plus Engagement Ring (H-I Color, I1-I2 Clarity)

What Is Diamond Clarity?

As you shop for diamonds, you will find the diamond clarity. This is determined by a couple of factors. These factors include both the position and size of the flaws. As you look at the surface of the stone, you may notice the flaws.

According to the Gemological Institute of America, there are six grades. These apply to the clarity of diamonds. These include:

  • Flawless (FL)
  • Internally Flawless (IF)
  • Very Very Slightly Included (VVS)
  • Very Slightly Included (VS)
  • Slightly Included (SI)
  • Included (I)

The lowest grade is Included, which is what the I in I1 stands for. This means that I diamonds have the lowest level of clarity. There are three grades of I diamonds, including I1, I2, and I3. I1 is the best of the Included grade.

1.25 Ctw Oval Cut Halo 14K White Gold Diamond Engagement Ring (H-I Color I1-I2 Clarity 1 Ct Center)
1.25 Ctw Oval Cut Halo 14K White Gold Diamond Engagement Ring (H-I Color I1-I2 Clarity 1 Ct Center)

How to Tell If a Diamond is I1

It’s important to look at a diamond before purchasing it. You will usually see a diamond’s grade while shopping. You should also see the diamond’s certification.

You might look for chips and other flaws. Some of these aren’t obvious unless you look closely. With a 10X magnification and the naked eye, you should see the flaws. An I1 diamond has at least one inclusion. The higher the grade, the harder it is to see inclusions.

You should look at the flat top of a diamond. Look for black spots or lines. There might be other imperfections as well. If you see one of these, you can tell it’s an I1 diamond. Don’t hesitate to ask to examine a diamond. The seller should be willing to let you do so. After all, you want to make sure you know what you’re buying.

1.00 Carat (ctw) Round Diamond Engagement Ring in 14K White Gold (Color H, Clarity I1-I2)
1.00 Carat (ctw) Round Diamond Engagement Ring in 14K White Gold (Color: H, Clarity: I1-I2)

Should You Buy an I-Grade Stone?

It is okay to buy an I-grade stone. After all, they are easy to find. It’s suggested that you buy an I1 stone or better. Do not buy an I2 or I3 stone, if possible. I1 stones have at least one visible inclusion. I2 or I3 stones have more.

In some ring settings, the flaws may be hidden. This is an option if you want an I1 diamond and want to hide its flaws. An I1 diamond is still a diamond. It still has value, even if it has flaws.

I1 diamonds work with the right embellishments. This is true of rings, bracelets, necklaces, and earrings. You may not want an I1 stone at the center of an engagement ring. That is, unless the flaws are completely hidden. This is something to keep in mind as you shop for diamonds. It can save you money too.

Some jewelers suggest against an I1 stone. They say that the flaws may impact the brilliance. This can be true. You should look at an individual stone to decide. It comes down to your preference. The particular stone is important too. Not all I1 stones are exactly the same.

What are I1 Diamonds
1 Carat 14K White Gold Classic Halo Style Cushion Shape Diamond Engagement Ring with a 0.75 Carat H-I I1 Center

How to Buy an I1 Diamond

If you’re buying an I1 diamond, there are things you should do. Keep these tips in mind as you shop:

  • Take your time to examine the diamond. Make sure you are aware of all flaws.
  • Look out for scams. I1 diamonds may be marked as SI3 stones. There is not an SI3 grade. This is a way that the seller can make the stone more appealing to the buyer. You could be tricked into paying more.
  • Choose a smaller diamond. Flaws are more visible on larger diamonds.
  • Choose a proportional cut. This will make the flaws less visible.
1.06 Carat Classic Halo Diamond Engagement Ring with a 0.63 Carat I-J I1 Center
1.06 Carat Classic Halo Diamond Engagement Ring with a 0.63 Carat I-J I1 Center

Carl A. Jones, GIA GG

Carl A. Jones is a GIA Graduate Gemologist with over 20 years of experience in the diamond industry. He is an independent jewelry appraiser. He specializes in determining the value of diamonds and advising consumers on how to buy quality diamond jewelry.

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