垫形蓝宝石裸石

垫形蓝宝石裸石

什么是垫形切工

垫形（cushion）的轮廓为方形或长方形，四角圆润，刻面通常采用明亮式或混合式排列。它是彩色宝石中常见的传统形状，在古董和复古风格的首饰里经常出现。圆角让轮廓显得柔和，镶嵌时也便于保护边角。

挑选要点

垫形的长宽比差别较大：接近1:1的显得方正，比例更长的则偏向长方形；喜欢修长轮廓的买家也可以浏览长方形蓝宝石，偏好方正轮廓可看方形蓝宝石。观察时可留意台面颜色是否均匀，以及中央是否出现明显的“领结”暗区。每颗宝石的页面列有该宝石的尺寸与重量。

加热、报告与查询

Crescent Gems自2000年起在斯里兰卡采购原石，多数宝石由自家工坊切磨，详见关于我们。每颗宝石的页面都会注明是否经过加热；如报告列有处理项目，我们会照报告原文列出。较高价位的宝石附有美国宝石研究院（GIA）报告，页面会显示该宝石所附的报告。

如需查询某颗宝石，或希望我们为它拍摄一段视频，请发电子邮件至crescentgems@gmail.com，我们以中文回复。宝石从美国经FedEx或UPS全额保险寄出：订单金额499美元及以下每单运费60美元，超过499美元免运费；享14天退款保证（美国境外退货运费由买家承担）。

Natural blue sapphire loose stone in a rich royal blue hue

蓝色

Close-up of a rare Loose Purple Sapphires gemstone showcasing its royal and mysterious deep violet hue

紫色

Close-up of a vibrant Pink Sapphire gemstones showcasing its brilliance and color variations

粉色

Close-up of a deep red Ruby Gemstones symbolizing passion and power, known as the King of Gemstones

红宝石

Vivid orange sapphire gemstones with deep tangerine hue and brilliant cut, showcasing clarity and strong saturation

橙色

Close-up of a soft pink-orange peach sapphire gemstone showcasing its delicate hues

蜜桃色

Close-up of vibrant yellow sapphire gemstones showcasing their radiant golden hues and brilliant sparkle

黄色

白色

Close-up of a Teal Sapphire gemstones blue and green hues

蓝绿色

Faceted Green Sapphire gemstones, showcasing vibrant green hues as an attractive emerald alternative.

绿色

Close-up of a brilliant green Tsavorite garnet gemstones showcasing its vibrant color and rare beauty

绿色钙铝榴石（沙弗莱）

Natural padparadscha sapphire loose stone in a rare peachy-pink lotus-blossom hue

帕帕拉恰

Close-up of a Natural Chrysoberyl gemstone showcasing its brilliance and durability, symbolizing strength, light, and luxury.

金绿宝石

Close-up of natural cat's eye chrysoberyl gemstone showing sharp chatoyancy phenomenon on honey-yellow cabochon stone

金绿宝石猫眼

Natural Star Sapphires gemstone with glowing asterism star effect in smooth cabochon cut

星光蓝宝石

Natural colour-change sapphire loose stone shifting hue between light sources

变色蓝宝石

Sapphire pairs showcasing balanced color, size, and shape for elegant jewelry designs

配对宝石

Round Sapphires Ceylon blue sapphire 6mm — calibrated loose stone for engagement rings

圆形宝石

Natural Oval Sapphire — unheated loose stone for engagement rings

椭圆形宝石

rectangular sapphires— unheated elongated loose stone

长方形宝石

Square Sapphires— square loose stone, diamond alternative

方形宝石

1.06 ct Kite-Shaped Blue Sapphire showcasing a unique geometric design and vibrant blue color.

异形切工宝石