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您已选择 (1232): 变色宝石 - Color Change Garnet, Color Change Sapphire, Alexandrite, Color-Change Diaspore, Color-Change Fluorite 清除所有
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Violet to Blue 变色萤石 Gem - 10.9ct 圆形切面 (ID: 413698)

圆形 彩色 变色萤石

10.9ct
14 mm
$ 272.50
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1 件
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金棕色至橙色 变色石榴石 Gem - 1.8ct 梨形切面 (ID: 344767)

梨形 彩色 变色石榴石

1.8ct
10.5 x 6 mm
$ 159.30
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Green to Pink 变色水铝石 Gem - 1.2ct 垫型切割 (ID: 396546)

垫形 彩色 变色水铝石

1.2ct
8.2 x 5.1 mm
$ 58.74
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2 件
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Green to Pink 变色水铝石 Gem - 1.3ct 垫型切割 (ID: 451601)

垫形 彩色 变色水铝石

1.31 ct (总计 2.61ctw)
10.3 x 4.3 mm
$ 122.67
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金棕色至橙色 变色石榴石 Gem - 3.8ct 椭圆形切面 (ID: 344565)

椭圆形 彩色 变色石榴石

3.8ct
10.6 x 7.6 mm
$ 490.10
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Green to Pink 变色水铝石 Gem - 1.3ct 垫型切割 (ID: 451657)

垫形 彩色 变色水铝石

1.29 ct (总计 2.57ctw)
7.9 x 5.1 mm
$ 120.79
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2 件
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Green to Pink 变色水铝石 Gem - 1.1ct 梨形切面 (ID: 451573)

梨形 彩色 变色水铝石

1.11 ct (总计 2.22ctw)
13.1 x 4.6 mm
$ 104.34
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绿棕色到红粉色 变色石榴石 Gem - 0.5ct 椭圆形切面 (ID: 428860)

椭圆形 彩色 变色石榴石

0.49 ct (总计 0.97ctw)
5.1 x 4 mm
$ 48.50
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Green to Pink 变色水铝石 Gem - 1.8ct 狭长形切面 (ID: 398473)

狭长方形 彩色 变色水铝石

1.8ct
11 x 4.6 mm
$ 84.64
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Violet to Blue 变色萤石 Gem - 11.5ct 圆形切面 (ID: 413715)

圆形 彩色 变色萤石

11.5ct
14 mm
$ 286.25
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金棕色至橙色 变色石榴石 Gem - 1.5ct 椭圆形切面 (ID: 344891)

椭圆形 彩色 变色石榴石

1.5ct
8 x 6.1 mm
$ 133.20
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Green to Pink 变色水铝石 Gem - 3.3ct 梨形切面 (ID: 390227)

梨形 彩色 变色水铝石

3.3ct
13.1 x 7.6 mm
$ 825.00
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2 件
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Green to Pink 变色水铝石 Gem - 1.5ct 垫型切割 (ID: 451605)

垫形 彩色 变色水铝石

1.51 ct (总计 3.01ctw)
11 x 4.7 mm
$ 141.47
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Click for Product Video (381559)
Green to Pink 变色水铝石 Gem - 19.9ct 圆形切面 (ID: 381559)

圆形 彩色 变色水铝石

19.9ct
15.4 mm
$ 6,500.92
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Click for Product Video (413680)
Violet to Blue 变色萤石 Gem - 12.3ct 圆形切面 (ID: 413680)

圆形 彩色 变色萤石

12.3ct
14.1 mm
$ 306.25
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Click for Product Video (344766)
金棕色至橙色 变色石榴石 Gem - 2.4ct 梨形切面 (ID: 344766)

梨形 彩色 变色石榴石

2.4ct
9.1 x 7.4 mm
$ 200.92
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金黄色至粉色 变色石榴石 Gem - 0.7ct 八角/交叉切割 (ID: 238079)

彩色 变色石榴石

0.7ct
7.1 x 3.5 mm
$ 84.31
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4 件
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Green to Pink 变色水铝石 Gem - 0.5ct 圆形切面 (ID: 454509)

圆形 彩色 变色水铝石

0.48 ct (总计 1.93ctw)
4.9 mm
$ 61.76
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Click for Product Video (381560)
Green to Pink 变色水铝石 Gem - 6.7ct 垫型切割 (ID: 381560)

垫形 彩色 变色水铝石

6.7ct
11.7 x 9.8 mm
$ 2,858.44
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2 件
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Click for Product Video (451571)
Green to Pink 变色水铝石 Gem - 1.5ct 垫型切割 (ID: 451571)

垫形 彩色 变色水铝石

1.54 ct (总计 3.08ctw)
10.9 x 4.4 mm
$ 144.76
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绿棕色到红粉色 变色石榴石 Gem - 0.6ct 椭圆形切面 (ID: 429001)

椭圆形 彩色 变色石榴石

0.6ct
5.7 x 4.4 mm
$ 31.00
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变色宝石
There are various color change gems, which include color change garnet, color change diaspore, color change fluorite, color change sapphire and alexandrite.

Color-change garnet is a mix of spessartite and pyrope garnet. This garnet presents a color change from brownish in daylight to a rose pink in incandescent light. The color change is quite intense and dramatic, surpassing that of the more expensive alexandrite.

Alexandrite is one of the rarest of all colored gemstones and is famed for its color change from green in daylight to red under incandescent light. Fine faceted alexandrite over 1 carat is more valuable than sapphire, ruby or emerald. Alexandrite is a variety of chrysoberyl, with an excellent hardness of 8.5 on the Mohs scale, placing it right behind sapphire and ruby. Alexandrite is rare because of its chemical composition. Chrysoberyl is colored by traces of iron and titanium, but alexandrite is also colored by chromium, which gives it the emerald green hue in daylight.

Diaspore, sometimes marketed under the name Zultanite, is a color change gem from Turkey recently introduced to the international market. Diaspore is a hydrated aluminum oxide colored by manganese. It was first faceted as a gemstone in the 1980s, but was not commercially mined until recently. With reasonably good hardness (6.5 to 7 on the Mohs scale) and good brilliance, diaspore has been attracting considerable attention in the gem world. Under natural or fluorescent light, diapsore has a kiwi green color, with flashes of yellow. Diaspore displays a champagne color under incandescent lighting, and when exposed to subdued lighting, such as candlelight, it has a pinkish color. The larger the stone, the more pronounced the color change effect will be.

Color change fluorite is fluorite which exhibits a change of color under different lighting conditions; most often from blue under daylight, to purple under incandescent light. Fluorite is composed of calcium fluoride and is known for its many different colors. Some of the rarer fluorite colors prized by collectors are colorless and blue fluorite. Color change fluorite gems are typically faceted and available in a variety of shapes. As well as some fluorite stones possessing the optical phenomenon of color change, fluorite glows when heated and fluoresces under ultraviolet light. With a hardness rating of 4 on the Mohs scale, fluorite is a soft stone that should only be used for pendants, brooches or earrings. Fluorite is a very affordable and attractive gem. The origin of the word fluorite comes from the Latin verb to flow. Ancient Romans believed that drinking alcoholic beverages from vessels carved of fluorite prevented drunkenness.

Some rare sapphires exhibit a color change under varying lighting conditions. Color change sapphires are typically blue in natural light and purple under incandescent indoor light. Color changes may also be pink in daylight to greenish under fluorescent light. Some stones shift color well and others only partially, in that some stones go from blue to bluish purple.

To find the color change gemstones you seek, filter the results further by using the left-hand menu. You can buy color change gems by gem type, color and shape. By using the top menu, you can search by carat weight, size, price and other factors, to enable you to find the exact color change gems that you are looking for. All items are in stock and ready to be shipped.
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综合评分 -> 9 star ratings
Great selection. Love the many learning features like articles and gem information. Prices competitive for natural stones. I do miss not having a selection of lab-made stones, CZ’s, etc, which are useful when price and cost are factors.
发布者 Dirk in January, 2019
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综合评分 -> 10 star ratings
Website easy to navigate.
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综合评分 -> 9 star ratings
I WOULD RECOMMEND GEM SELECT.
发布者 BO in January, 2019
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综合评分 -> 10 star ratings
As Always never disappointed in any gemstone I purchase from this site. I have never had a problem. Thank-You Gemselect for offering such a comprehensive variety . I will continue to order from this site.
发布者 Brian in January, 2019
来源: Bizrate
综合评分 -> 10 star ratings
Easy to find what i'm looking for on website, very clear, like photos
发布者 Lifter in January, 2019
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综合评分 -> 10 star ratings
Better than what I expected. Beautifully cut gem!
发布者 in January, 2019
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人气宝石
全部宝石 (142)
只提供英语客户支持

免费通话 - 仅限美国和加拿大:
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国际:
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大小和重量

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart