Here's your math problem: today on Blue Nile you can purchase half carat diamonds of this clarity and pay between US$579 and US$1582, depending on the cut and colour of the diamonds you want to buy.
With 20 such diamonds, you can figure out the range of values, above, or take your cache to a jeweler so that each diamond can be valued individually, which is the practice for vendors in this marketplace.
You're asking about two of the four Cs in diamond grading: clarity and colour.ClarityThe numbers are self-explanatory. The initials are:VS - very slightSI - slight inclusionYou can read more, below.ColourThe colours you list are in the second tier of desirable colours for 'colourless' diamonds, D through H, being the most desirable.You can read more, below.
There are several ways: * You can send the diamond to be tested again. GIA offers a discounted rate for reexaminations within 60 days of the original testing. * You can send the diamond to be tested again, without suggesting its a reexamination. * You can compare the report number to the number inscribed on the diamond, if the diamond has been inscribed. * Ask a graduate gemologist to draw a map of the diamond's inclusions and blemishes, and compare this to your GIA map. Each diamond's map is unique, like a fingerprint. (Not all GIA certificates include a map.) Here are some suggestions that can be done by yourself or with a local jeweler: * If the diamond is loose, it can be weighed to see if it matches the certificate * A jeweler can usually examine it and provide a quick idea if the certificate is close, based on the color and inclusions. (If the jeweler thinks it is an H color and SI2 clarity, but the certificate says F color and VS1, this would be a good indication it may not match) * You can inspect the clarity yourself, but clean the diamond first. If the diamond clarity is IF, VVS or VS clarity, you will need magnification to see any inclusions, but if you can see any inclusions with the naked eye, it is an SI or I clarity.
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).
Any diamond is worth what someone will pay you for it. In your case, 23 carats is a large diamond. Best practices dictate that you take the diamond to a certified gemologist who can ascertain its cut and clarity -- you have its carat weight and colour -- and give you a better idea of its potential market value. For example, the largest diamond that you can buy today on Blue nile weighs 22.49 carats, J colour, VVS2, and is a Very good Emerald cut. You can buy it for US$1,108,751.
At Dubai Wholesale Diamonds, a 2.19 carat GIA certified D / FL will cost you $80,000 and a Round 2.00 carat J / SI2 (Eye Clean) will cost you approx. $10,500 For further details you can contact us at sales@dubaiwholesalediamonds.comor browse through our collection of certified diamonds at http://dubaiwholesalediamonds.com/diamond-search/.
The acronym SI1 or SI2 indicate slight inclusion, followed by the number of these inclusions visible under a 10x loupe.
Yes. If the diamond is flawed, rated as SI2+, or if the mounting does not protect the stone against that once-in-a-lifetime accidental blow, yes, a diamond can chip.
Red diamonds are the most rare of all naturally coloured diamonds. Shopping online today, you can find an 0.11 carat Fancy Purplish Red, Radiant shape, SI2 clarity with a GIA certificate and pay US$24,300. There are larger, more expensive red diamonds available also.
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.
:::i-::s-i:::
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.
Adamantine to waxy luster are the words used to describe the luster of diamonds. According to Wikipedia: "Adamantine minerals possess a superlative lustre, which is most notably seen in diamond. Such minerals are transparent or translucent, and have a high refractive index (of 1.9 or more)." Luster is the clarity and refractivity of an individual stone. Not all diamonds are created equal. Flawless diamonds are extremely rare and can be prohibitively expensive for most of us. In jewelry, generally diamonds evaluated as those containing VVSI (very very slightly included) to SI2 (two slight inclusions), are more affordable. SI2 is generally the lowest grade for good gems. Inclusions can be any imperfection. The luster is its refractiveness. Its ability to bounce back available light from inside the stone. This can be affected by the color, cut or clarity. Only 20% of all diamonds mined are gem-stone quality.
Today on Blue Nile, the largest diamond available of this cut weighs less than half of 15 carats: 6.10 carats. It is an I colour with a clarity rating of SI2, meaning it is not a top-grade diamond. For it you could pay US $71,674. To find this cut in this larger size, best practices dictate that you search auction house options, such as Sotheby's or Christie's. Given their world-wide trade in luxury goods, you may see a diamond of that cut/ weight that you can buy.
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.