Web羽裂纹 Feather: 钻石内部裂痕的总称，是一种常见的瑕疵。 孪晶纹 twinning wisp：是聚集在钻石双晶面上的大量包体，通常呈现丝状或者网状。 针点 pinpoint: 针点大小的晶体，大 … WebApr 12, 2024 · You don’t want feathers, twinning wisps, etch channels, or indented naturals visible when showing off your diamond ring. It might require choosing a higher clarity than SI2, but you can start there. In fact, most buyers choose a clarity grade higher than SI2 for their engagement ring diamond.

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WebSep 27, 2024 · Clarity is one of the most important aspects of a diamond to consider because black spots, a dark twinning wisp, or a feather can negatively affect its appearance, no matter its quality in other areas. Cut Grade. A diamond’s cut is the factor that most impacts its brilliance. Gemologists base the overall cut grade on factors such as: WebOct 1, 2024 · Generally, we will find twinning wisps on fancy diamond shapes such as the Pear Shape, Heart Shape, and Triangle shape because it is caused by the twisting of the diamond. It can also be found in other shapes of diamonds. In simpler terms, twinning wisps are a combination of different inclusions such as pinpoints, crystals, feathers, and clouds. cdr king projector

解析GIA证书上clarity characteristics中的各内含物特征 - 知乎

WebCommon SI2 inclusions are larger crystals, twinning wisps, feathers, clouds and knots. SI diamonds. I1: Included 1. Included 1: an I1 diamond will shine bright despite eye visible … WebOct 24, 2024 · Larger feathers in SI clarity graded diamonds may be eye-visible and often I2 and I3 clarity diamonds have large feathers that can create structural integrity concerns, … WebJan 28, 2024 · Twinning wisps; Feathers; Cavity; Needles; Naturals; A higher number of inclusions has a negative impact on the diamond. It’s rare to find one with more than six types that earns a grade above SI. But there are exceptions to this rule. I’ve seen diamonds earn a SI2 grade because of a single crystal that affected every aspect of its appeal. 2. cdr snina