Diamond clarity is one of the most important factors in evaluating a diamond's overall quality and value. Along with color, carat weight, and cut, it forms the foundation of the "4Cs"—the standard by which diamonds are graded and assessed. Clarity specifically refers to the presence of internal or external imperfections, called inclusions and blemishes, within the diamond. The fewer and less visible the imperfections, the higher the clarity grade and the more valuable the diamond.
While diamonds with higher clarity grades are often more expensive, many buyers, especially those with limited budgets, might prioritize size (carat) over clarity, assuming that imperfections are hard to notice with the naked eye. However, understanding the significance of clarity is crucial, as it impacts the diamond's brilliance, long-term value, and appearance.
What is Diamond Clarity?
Diamonds are formed naturally under extreme pressure and heat deep within the Earth's mantle, over millions of years. During this time, most diamonds accumulate imperfections (inclusions) due to the conditions in which they are created. These imperfections affect the diamond's clarity and can influence its value.
Clarity is evaluated based on the number, size, nature, and position of these inclusions and blemishes. The fewer imperfections, the higher the clarity grade. It's important to note that while clarity may not always be easily visible to the naked eye, it still plays a significant role in the diamond’s overall quality and price.
GIA Clarity Scale: From Best to Worst
The Gemological Institute of America (GIA), one of the most respected diamond grading organizations, uses the following scale to grade diamonds:
I. Flawless (FL): No inclusions or blemishes visible under 10x magnification. This is the highest clarity grade and extremely rare.
II. Internally Flawless (IF): No inclusions visible under 10x magnification, but there may be slight blemishes on the surface.
III. Very Very Slightly Included (VVS I & VVS II): Inclusions are very difficult to see even under 10x magnification.
IV. Very Slightly Included (VS I & VS II): Inclusions are minor and visible only under magnification, but not noticeable to the naked eye.
V. Slightly Included (SI I & SI II): Inclusions are noticeable under magnification, and in some cases, can be seen with the naked eye, particularly in larger diamonds.
VI. Included (I I, I II, I III): Inclusions are clearly visible to the naked eye and can significantly affect the diamond’s brilliance.
Clarity Grades Explained：
1）Internally Flawless (IF)
Diamonds with an IF grade are considered perfect under 10x magnification. These diamonds are rare and highly coveted, usually reserved for those seeking the highest level of perfection. Expect to pay a premium for an IF clarity diamond.
2）Very Very Slightly Included (VVS I & VVS II)
Diamonds in the VVS category have such tiny inclusions that even gemologists with magnification tools have a hard time spotting them. The inclusions are minuscule, often compared to specks of dust, making VVS diamonds an excellent choice for those looking for high quality without the IF price tag. For a 1-carat diamond, the VVS grade offers great value.
3）Very Slightly Included (VS I & VS II)
VS diamonds have inclusions that are visible under magnification but are typically hard to detect with the naked eye. VS I diamonds are of higher quality than VS II, but both offer a great balance of quality and price. For many buyers, VS I diamonds provide the perfect combination of excellent clarity and affordability.
4）Slightly Included (SI I & SI II)
Diamonds graded SI have inclusions that are noticeable under magnification and, in some cases, can be visible to the naked eye, especially in larger diamonds. These diamonds are often more affordable but may have imperfections that can affect their appearance. When buying SI diamonds, it’s important to inspect them carefully to ensure that any visible flaws won’t detract from the overall beauty of the diamond. Emerald cut and Asscher cut diamonds are good choices, as their unique faceting can help hide imperfections.
5）Included (I I, I II, I III)
Diamonds in the I range have obvious inclusions that can be easily seen with the naked eye. These inclusions are significant enough to affect the diamond’s brilliance and overall visual appeal. We typically advise against purchasing diamonds in this clarity range unless the price is extremely low, as the flaws will be difficult to overlook.
How Clarity Affects Value？
Clarity plays a major role in the price of a diamond. As a general rule, the clearer the diamond, the more expensive it will be. However, diamonds with higher clarity may not always offer the best value. For example, a diamond with SI I or VS II clarity may still appear flawless to the naked eye, especially if it is cut well and has good color. These diamonds can offer a great balance of quality and price, making them a smart choice for buyers looking for value.
Choosing the Right Clarity for You？
When shopping for a diamond, the best clarity grade will depend on your budget and priorities. Here are a few tips to help you make an informed decision:
I. If you’re on a budget: Consider VS I or VS II diamonds, which provide excellent quality at a lower cost than higher clarity diamonds.
II. If you want perfection: If you’re willing to pay for the absolute best, IF or VVS I diamonds are your ideal choice. They are the highest clarity grades, ensuring an almost perfect diamond.
III. Consider the cut: A well-cut diamond can often mask minor inclusions, especially if the inclusions are near the edge or hidden in the pavilion (bottom) of the diamond.
IV. Visual inspection: When selecting diamonds in the SI I or SI II range, inspect the diamond to ensure any inclusions are either hidden or not too distracting.
Conclusion: Quality Over Perfection？
Choosing a diamond is like buying a cake—you should balance your budget across all the "layers" of the 4Cs. While clarity is important, you don't need to focus entirely on it at the expense of other factors like cut, color, and carat weight. For example, if cut and color are your priorities, you may be able to compromise slightly on clarity without sacrificing much in terms of the diamond’s beauty and brilliance.
Ultimately, the most important thing is to choose a diamond that appeals to you and fits your budget. Whether you prioritize a high clarity grade or are more focused on size and sparkle, make sure to weigh all aspects of the diamond and find the perfect balance for your needs. Happy diamond hunting!
