Use of rotational inertia of the definition of calculated rigid ovalring around the ring with the vertical plane through the central axis and the moment of inertia.
运用转动惯量定义式直接计算出椭圆环刚体绕垂直与环平面且通过中心轴的转动惯量。
2
In comparison, you'd pay $5, 717 for the same ring set with a pear-shaped stone of the same attributes; $6, 174 for a marquis, or $5, 803 for an oval.
At Blue Nile, a three-stone white gold ring set with an oval-cut sapphire (just shy of one carat, good color, no visible flaws) and flanked by two 0.15-carat diamonds goes for $1,575.