Diamond Clarity: What Are SI1 and SI2 Diamonds?

First of all, what is diamond clarity? One of the 4Cs and a crucial factor when choosing a diamond, clarity means the existence, and more importantly the appearance of blemishes or inclusions. When visible to the naked eye, these imperfections can impact the overall appearance of your engagement ring or other diamond jewelry.

Diamond clarity is graded on a scale ranging from Flawless (FL), meaning no inclusions visible under 10x magnification, to Included (I3), meaning inclusions are visible to the naked eye. SI1 and SI2 are part of the Slightly Included category, which means they do have inclusions which are noticeable under magnification but not always visible to the naked eye.

So why is diamond clarity important? Well, it is important because it affects how your stone sparkles! While inclusions are naturally formed during the creation process and a part of each diamond’s unique character, if they are excessive, they can disrupt light reflection, resulting in a diamond that is dull instead of dazzling.

SI1 stands for Slightly Included 1. Meaning these diamonds generally have inclusions that are easily identifiable under 10x magnification, but are NOT visible to the naked eye when viewed from above – making them ideal for things such as engagement rings. Making them a great choice because they look eye-clean at a more budget-friendly price compared with higher grade gemstones.

SI2 stands for Slightly Included 2, just after SI1 on the clarity scale. These diamonds have inclusions that are more noticeable and may be visible to the naked eye, depending on their size, type, and location. While these diamonds offer considerable savings compared to higher clarity grades, it is important to be careful when choosing an SI2 diamond due to these inclusions.

The main things to keep in mind: inclusions. In SI1 diamonds, inclusions are generally not visible without magnification, while with SI2 diamonds, they may be visible to the naked eye, especially if you go for a larger stone.

• Location and Size of Inclusions: if inclusions are closer to the center, they will be more noticeable than those closer to the edges.
• Inclusion Type Matters: different inclusions have different impacts, for example, inclusions known as clouds or large feathers will have a higher impact on your diamond’s brilliance
• Inclusion Color: white or transparent inclusions are less noticeable than black carbon spots.

Generally speaking, for diamonds with the same carat weight, cut, and other characteristics, SI2 diamonds will be more affordable than the SI1 versions. Prices can be anywhere from 10-30% lower.

Keep in mind the higher the carat weight or bigger the stone, the more visible inclusions become. This is important for both clarity grades, but particularly SI2 diamonds.

The cut and color grade of your SI1 or SI2 diamond can affect the visibility of inclusions and its overall brilliance. So consider cuts that are better at hiding inclusions such as round, cushion, and radiant, especially for SI2 diamonds. Cuts like emerald or Asscher can more easily show inclusions, so you may want an SI1 over an SI2 for these shapes.

The best diamond is the one that works best for you and is right for your budget, style, and recipient, of course! When deciding between SI1 and SI2 diamonds, consider the following:

• See the Diamond for Yourself: we recommend you view the diamond yourself, whether in person or through high quality photos and videos, so you can assess the visibility of inclusions.

Did ya know? Not to toot our own horn but toot toot! At James Allen, you can view your diamond from the comfort of home thanks to our Diamond Display TechnologyTM . Explore your diamond in 360° HD views and up to 40x magnification so you can truly understand your diamond’s features.

• Consult a Trusted Jeweler: getting professional advice can be invaluable. This way you can ask about everything including budget, style preferences, and the piece you are shopping for.

We got you babe. Our non-comissioned diamond experts are available 24/7 to answer all your questions and make sure you get the best diamond to suit your budget and style.

• Focus on Cut and Symmetry: part of the 4Cs, cut is also important and affects the clarity of your diamond. A well-cut diamond can mask some inclusions and enhance your stone’s overall appearance and brilliance.

What’s great about diamonds is that each is uniquely beautiful. SI1 and SI2 clarity diamonds are beautiful, budget-friendly options. Understanding the differences between these clarity grades will allow you as an informed consumer, to get the best diamond for you. So whether you are getting ready to pop the question or want to mark a milestone moment with something spectacular, SI1 and SI2 diamonds can bring the sparkle you need.