Page 62 - Thailand Gems & Jewelry Guide Book

62
Thailand’s Gems & Jewelry Guide Book

宝石的优化处理

除了切割和打磨之外,一般情况下红/蓝宝石还要经过优化处

理来提升宝石的颜色和净度。顾客需要索取证书来判断宝石的优化

处理方法,这些方法的命名可在欧洲宝石学会的宝石学一书中查

到。

Gemstone Modifification

Besides Cutting and polishing, rubies / sapphires are

commonly modified to improve their color and clarity. It is

required that customers be informed about such modifications.

Ask for a written confirmation.The correct nomenclature

of modified gemstones can be found in the CIBJO Gemstone

Book.

宝石的价值

除了首页提到的内容之外, 切工、稀有度和硬度也决定了宝石

的价值。

通过工厂加工合成和仿造的宝石不属于天然的宝石,价值也远

远的比天然且有着相似形状的宝石低。

Value of a Gemstone

Moreover, the value of a gemstone is also defined by

the combination of relative beauty, rarity and durability. Synthetic

and imitation stones can be produced in industrial plants in any

quantity and are therefore not rare and not considered precious.

As a result, they cost much less than their natural counterparts of

equal characteristics.

Source : CIBJO