Page 58 - Thailand Gems & Jewelry Guide Book
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Thailand’s Gems & Jewelry Guide Book
R
uby & Sapphire Guide
关于购买红宝石/蓝宝石的指南
红宝石和蓝宝石的质量标准和市场价值
取决于下列各项条件:
Carat Weight
重量克拉 : 红/蓝宝石的重量单位是克拉。
1克拉= 0.2 克。较重和较大的红/蓝宝石通常是比较稀有的。
Weight of a ruby / sapphire is measured in carats.1 carats
= 0.2 grams. The heavier and the larger the ruby / sapphire,
usually the more rare it is.
Cut
打磨切割 : 红/蓝宝石的精致度取决于切割的角度、比例、
对称和抛光。切割技术的高低决定了一颗宝石光芒四射亦或是黯
淡无光。
Cut refers to the accuracy of the angles, proportions,
symmetry and polish of the ruby /sapphire. It greatly affects how
light travels within the ruby / sapphire, and how it exits in the form
of brilliance.
Proportional Deep shallow Asymetric
