Diamond Inclusions & Blemishes
Below, we are going to reveal some of the most common inclusions and blemishes you can find on a diamond. Blemishes and inclusions can have a negative impact on the clarity of a diamond, and thus it is vital to know a little bit more about them before purchasing.
Indented Natural - Firstly, we have an indented natural. This is the type of inclusion that can occur after the diamond has been cut. This is because they are used to make certain the cutter can extract the most value from the diamond.
Twinning Wisps - Twinning wisps occur when the crystal has entwined into a trial during the original growth of the stone.
Knots - Knots are one of the most troublesome flaws, and this is because they are very visible and they appear on the diamond's surface. Because of this, you can expect knots to have quite a detrimental impact on the clarity grading of a diamond.
Needles - This type of inclusion gets its name because it looks like a needle; like a streak of light within the stone. When in clusters, needles can be rather damaging to the appearance of the diamond.
Pinpoints - Pinpoints are small crystals in the diamond. They can be light or dark.
Pinpoint Clouds - Pinpoint clouds relate to a cluster of the former, and the result is a cloudy appearance on the diamond.
Feathers - This is a term that describes small cracks in the stone that appear like a feather. The impact of a feather inclusion can differ dramatically. If it is close to the surface, it can cause a real issue, not only in terms of appearance but also durability.
Mineral crystals or inclusions - Most diamonds suffer from this type of inclusion, as they all have minute crystals or minerals imbedded inside. What you want to know is how visible these minerals or crystals are, as you don't want them to be noticeable to the naked eye. Examples of fragments that get imbedded inside include garnet, calcite, silica, diopside, and olivine. It can even be small diamonds in some instances.