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    OVAL CUT DIAMOND
    1.
    发明公开
    OVAL CUT DIAMOND 有权
    DIAMANT MIT OVALEM SCHNITT

    公开(公告)号：EP1741359A4

    公开(公告)日：2008-06-18

    申请号：EP05721467

    申请日：2005-03-25

    Applicant: HOHOEMI BRAINS INC

    Inventor： MATSUMURA TAMOTSU ,  KAWABUCHI YOSHINORI ,  ITOH AKIRA

    IPC: A44C17/00

    CPC classification number: A44C17/001

    Abstract: An oval cut diamond having a girdle with elliptical or nearly elliptical outline, a crown which is above the girdle and has an octagonal table facet in the top section, and a pavilion which is below the girdle. The girdle has an aspect ratio (b/a) of 0.6 or more where a is the radius in the direction of the long axis and b is the radius in the direction of the short axis. A pair of pavilion main facets arranged opposite to each other with respect to the central axis have a crown main facet pair or a star facet pair respectively facing them across the girdle. Since these two pavilion main facets, two crown main facets or star facets, and the table facet have a common vertical plane in their facets, brightness of reflected light emerging above the table facet and the crown facets is enhanced.

    Abstract translation: 一种椭圆形切割钻石，具有椭圆形或近似椭圆形轮廓的腰围，顶部上方具有八角形小平面的冠部以及位于腰部下方的亭子。 腰带具有0.6或更大的纵横比（b / a），其中a是长轴方向上的半径，而b是短轴方向上的半径。 相对于中心轴线彼此相对布置的一对亭子主小平面具有分别穿过腰带面对它们的冠主小面对或星形小面对。 由于这两个亭主面，两个冠主面或星面以及台面在它们的小平面中具有共同的垂直平面，所以增强了在台面和冠面上方出现的反射光的亮度。

    OVAL CUT DIAMOND
    2.
    发明公开
    OVAL CUT DIAMOND 审中-公开
    Diamond采用椭圆形切割

    公开(公告)号：EP1741360A4

    公开(公告)日：2008-06-18

    申请号：EP05721468

    申请日：2005-03-25

    Applicant: HOHOEMI BRAINS INC

    Inventor： MATSUMURA TAMOTSU ,  KAWABUCHI YOSHINORI ,  ITOH AKIRA

    IPC: A44C17/00

    CPC classification number: A44C17/001

    Abstract: An oval cut diamond, comprising a girdle having a border line formed in an elliptic shape or a shape similar to the elliptic shape, a crown at its tip part having, at the upper part of the girdle, a table facet formed in an octagonal shape, and a pavilion at the lower part of the girdle. The so-called deformed oval brilliant cut diamond is formed by rotating either of the crown and the pavilion of a normal brilliant cut diamond by approximately 1/16 turn around its center axis. Where the radius of the girdle in the major axis direction is (a) and the radius of the girdle in the minor axis direction is (b), the ratio (b/a) of the radius in the minor axis direction to the radius in the major axis direction is 0.6 or larger. A pair of pavilion main faucets positioned oppositely to each other with respect to the center axis comprise a pair of crown main faucets or a pair of star faucets opposed to each other on both sides of the girdle. Since these two pavilion main faucets, two crown main faucets or star faucets, and the table faucet comprise a common vertical plane in these faucets, the brightness of reflected light coming to the upper side of the table faucet and the crown faucet is intensified.

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