When seen at 10x magnification, SI diamonds exhibit obvious inclusions that are easy or very simple for an experienced grader to spot. SI is separated into two classes; SI1 indicates a greater clarity rating than SI2. These can be seen with the naked eye or not. If you had one of these stones and tried to sell it without labeling it, no one would believe you had such a clear diamond.
SI diamonds are less valuable than VS1/VS2 diamonds but more expensive to grade because they require magnifying lenses and microscopes to detect inclusions. Stones with visible inclusions have impurities within their structure that scatter light when viewed under a microscope. This causes them to look darker under blacklight inspection video as well. Stones that do not show any visible inclusions but which still contain internal flaws are called "invisible" diamonds.
SI diamonds can range in price from $5,000 to $50,000 per carat. The average price per carat of an SI diamond is about $15,000. VS1/VS2 diamonds tend to be more expensive and typically range from $20,000 to $500,000 per carat. The average price per carat of a VS1/VS2 diamond is about $80,000.
SI diamonds are used in jewelry for their beauty and quality, whereas VS1/VS2 diamonds are needed for cuteness vs. toughness.
SI stands for "Slightly Included," yet it's not a negative grade. SI diamonds are frequently the best value for money. We prefer these lower clarity ratings. SI diamonds, like all diamonds, contain flaws, even flawless ones. These include inclusions, which are small bubbles trapped inside the crystal when it was forming as well as internal surface cracks. While these problems may cause concerns for some buyers, they do not affect most diamond jewelry. Colorless or white diamonds can be considered perfect gems because they have no color and are completely transparent.
In general, the higher the quality rating, the better the deal. For example, an SI2 stone could be quite valuable, while an SI1 would be cheaper but still attractive. The price of a diamond is based on many factors, such as cut, color, weight, and clarity. A professional jeweler should be able to help you determine what type of stone you have by looking at them under magnification and using an instrument called a goniometer. They will also be able to advise you on how much you can expect to pay for that type of stone.
The best way to find out what type of stone you have is to take it to a jeweler for evaluation. You should feel comfortable doing this through me - if you have any questions about my recommendations please don't hesitate to ask.
SI2 diamonds are somewhat included to the 2nd degree, which means they contain inclusions visible under 10X magnification. Some SI2 diamonds are flawless. A bigger proportion, around 70%, are not eye-clean. That is why SI2 diamonds must be thoroughly examined. Only then can you make an informed choice about whether it's worth buying.
An SI2 diamond is a valuable gem that should not be overlooked. It is our most inclusive grade and includes truly flawless diamonds that are almost impossible to find in the real world. However, diamonds that are slightly flawed but still very beautiful can also be SI2 rated. In fact, nearly 70% of all SI2 diamonds are considered perfect stones by our experts.
The main difference between an SI2 diamond and a VS2 diamond is that SI2 diamonds have visible inclusions while VS2 diamonds do not. Otherwise, they are exactly same as described above. If you are looking for a premium quality diamond, then an SI2 is the way to go. They are absolutely stunning gems that deserve your attention!
Yes! Although a SI1 diamond is not perfect, it is both beautiful and precious. No one will usually approach near enough to observe or identify any additions. SI diamonds, like most other high-quality diamonds, will appreciate with time. The SI1 quality rating system was developed by the Gemological Institute of America (GIA) and covers the following characteristics:
SI1 means "superior" or "perfect." Only flawless diamonds are rated SI. All other diamonds are graded according to their appearance compared to the ideal gemstone.
The term "diamond grade" refers to the quality of a diamond. There are four main grades - IF, VVS1, VVS2, and VT - with increasing levels of perfection. An "IF" diamond has no inclusions or defects that can be seen with the naked eye. These are the most valuable diamonds of all. A "VVS1" diamond has several small inclusions that may be visible with the naked eye. It is considered very rare but still worth some money. A "VVS2" diamond has more large inclusions than a VVS1 diamond but they are still relatively small. In general, these diamonds are less valuable than a VVS1 or VVS2, but some experts believe they are becoming more popular as industrial uses for diamonds are developing.
If you take the time to hunt for an eye-clean stone, a SI1 diamond might provide the finest value. Instead of spending more for a better clarity grade, you receive an eye-clean diamond for far less. With an eye-clean SI1, no one can discern the difference save an expert jeweler using a loupe. These stones are perfect for those who want to appear premium while not having to pay a high price tag.
The SI2 grade is the next best thing to an eye-clean diamond. These diamonds are still very clear and easy to see with just a slight glance, but they have inclusions that are large enough to be seen with the naked eye. SI2 diamonds tend to be cheaper than SI1 diamonds because they're still very valuable and beautiful stones. However, they do have flaws that need to be hidden by an expert jeweler using a laser tool or microscope.
SI3, SII, and SI4 diamonds are considered fancy or quality gems. They may be clear except for some minor inclusions, but these defects are so small they cannot be seen without a microscope. Quality diamonds can cost up to 100 times more than eye-clean stones of the same size. However, fancy diamonds can sell for hundreds or even thousands of dollars per carat!
Eye-clean diamonds are precious gifts from God. They should be treated with respect and kept out of direct sunlight.
VVS diamonds feature minute inclusions that are difficult to see even with trained eyes under 10x magnification. VVS2 clarity diamonds contain somewhat more inclusions than VVS1 clarity diamonds. A VVS diamond is of exceptional quality and clarity. VVS diamonds are purchased by 21% of consumers. The next level down, VS1 stones are even clearer than VVS. They must be viewed under a microscope to detect inclusions. Only 1 in 10,000 diamonds are considered VS1 stones.
An S1 stone has no visible inclusions at all. These diamonds tend to be larger than other grades of diamonds. They can sometimes sell for more too! An S1 stone is the highest grade of diamond that can be sold as clear or nearly so. Most diamonds that reach the market are some combination of V, VS, and SI stones.
There are three main types of diamonds: colorless, yellow, and red. Colorless diamonds include those that are G, H, I, or J. Yellow diamonds have a yellow tint to them; they are labeled X or Y. Red diamonds are completely red, including their crown and shaft. Pink diamonds can appear red under certain conditions. The less color a diamond has, the higher its value will be. Diamonds that are completely white or black do not exist in nature.
Diamonds are formed deep within planets when carbon atoms bind together with other elements such as oxygen or nitrogen.