SI2 indicates that in at least two places inside the diamond, inclusions, however slight, are visible.You can view diamond clarity images, below, including one for a diamond graded as SI2.
The value of diamonds depends greatly on their clarity, the quality of their cut and their color. To purchase a 3 carat diamond from a retail source with quality better than SI2 you will be spending at least 20 thousand dollars!
SI1 has the fewest and smallest inclusions, while SI2 has more and larger inclusions. This doesn't mean that SI clarity diamonds are a poor choice. In fact, most SI1 clarity diamonds will look just as good as a higher clarity diamond.
The value of a diamond depends on its cut, its clarity, its colour and its carat weight. A local jeweler can give you the answer you want.
The value of a diamond depends on its cut, colour, carat weight and its clarity. A local jeweler can answer your question. You can buy a round cut diamond of this weight today from Blue Nile and spend from about US$40,000 to about US$56,000. An investment-quality diamond -- with a higher clarity rating -- starts at about US$56,000.
Depending on the cut, colour, clarity and exact carat weight, you could buy a diamond of about this weight today from Blue Nile and spend between US$17,000 and US$21,000. Then, you'd pay for the setting.
According to Wikipedia: "Slightly Included category (SI) diamonds have noticeable inclusions that are easy to very easy for a trained grader to see when viewed under 10x magnification.[2] The SI category is divided into two grades; SI1 denotes a higher clarity grade than SI2. These may or may not be noticeable to the naked eye." "Good" is relative. From an investment point of view, SI is not as good as the less included clarity ratings.
A GIA round 3 carat F color, VVS2 clarity diamond can cost about $56,900 and 3 carat round H color, SI2 (100% eye clean) clarity diamond costs about $25,951. You can select a good quality diamond if you focus on the cut and compromise on the clarity, depending on your budget.
The U colour is in the clearly yellow range of 'colourless' diamonds, and SI 2 is toward the lower end of desirability in terms of clarity. Today, at Blue Nile, the 'yellowest' diamond you can buy in the .65 carat price range is J colour, and with the clarity option you want, you'll spend about US$1,000.00.
A round GIA certified 1 carat H color and VS1 clarity “VG†cut diamond is worth approx. $4,500. You can go down on clarity up to SI2 but an eye clean diamond which will cost you $3,800.
You can purchase a cut diamond today from Blue Nile for $302. This stone is .30 carats, round brilliant cut, rated as very good, with an I colour and SI2 clarity. As well, you could go to an auction and spend many millions on a rare diamond, perhaps up to $24 million (US).
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