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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1279): Color-Change Gems Fluorite, Color Change Garnet, Color Change Sapphire, Alexandrite, Color-Change Diaspore, Color-Change Fluorite Clear All
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ID: 3463231 pcs
thumb image of 0.6ct Oval Facet Brownish Rose to Red Color-Change Garnet (ID: 346323)
0.55ct Color-Change Garnet
5.92 x 3.90 x 2.56mm
USD 49.50
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ID: 4398731 pcs
thumb image of 1ct Octagon Facet Green/Pink Color-Change Diaspore (ID: 439873)
1.03ct Color-Change Diaspore
6.19 x 5.90 x 3.18mm
USD 28.84
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ID: 3984681 pcs
thumb image of 1.4ct Baguette Facet Green/Pink Color-Change Diaspore (ID: 398468)
1.38ct Color-Change Diaspore
10.76 x 3.96 x 3.00mm
USD 65.62
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ID: 4292651 pcs
thumb image of 0.6ct Oval Facet Greenish Brown To Red Pink Color-Change Garnet (ID: 429265)
0.59ct Color-Change Garnet
5.49 x 4.22 x 2.91mm
USD 29.50
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ID: 3984641 pcs
thumb image of 1.2ct Baguette Facet Green/Pink Color-Change Diaspore (ID: 398464)
1.18ct Color-Change Diaspore
10.66 x 3.69 x 2.77mm
USD 56.11
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ID: 4288632 pcs
thumb image of 1.5ct Oval Facet Greenish Brown To Red Pink Color-Change Garnet (ID: 428863)
1.45ct Color-Change Garnet
5.96 x 4.13 x 3.15mm
USD 72.50
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ID: 3882191 pcs
thumb image of 0.7ct Round Facet Green/Pink Color-Change Diaspore (ID: 388219)
0.66ct Color-Change Diaspore
5.05 x 3.51mm
USD 21.66
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ID: 4294861 pcs
thumb image of 0.8ct Oval Facet Greenish Brown To Red Pink Color-Change Garnet (ID: 429486)
0.84ct Color-Change Garnet
6.15 x 4.84 x 3.26mm
USD 50.40
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ID: 3984651 pcs
thumb image of 1.5ct Baguette Facet Green/Pink Color-Change Diaspore (ID: 398465)
1.50ct Color-Change Diaspore
9.05 x 4.84 x 3.29mm
USD 71.32
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ID: 3887591 pcs
thumb image of 1ct Marquise Facet Green/Pink Color-Change Diaspore (ID: 388759)
0.99ct Color-Change Diaspore
10.21 x 4.08 x 3.71mm
USD 48.15
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ID: 3967521 pcs
thumb image of 1ct Pear Facet Green/Pink Color-Change Diaspore (ID: 396752)
1.04ct Color-Change Diaspore
6.72 x 5.07 x 4.14mm
USD 49.67
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ID: 4040284 pcs
thumb image of 0.9ct Round Facet Violet to Red Color-Change Sapphire (ID: 404028)
0.87ct Color-Change Sapphire
3.36 x 1.92mm
USD 65.25
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ID: 4290021 pcs
thumb image of 0.6ct Oval Facet Greenish Brown To Red Pink Color-Change Garnet (ID: 429002)
0.57ct Color-Change Garnet
5.14 x 4.10 x 3.09mm
USD 28.50
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ID: 3949611 pcs
thumb image of 1ct Oval Facet Green/Pink Color-Change Diaspore (ID: 394961)
1.02ct Color-Change Diaspore
6.92 x 4.88 x 3.69mm
USD 37.98
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ID: 4400221 pcs
thumb image of 1ct Octagon Facet Green/Pink Color-Change Diaspore (ID: 440022)
0.96ct Color-Change Diaspore
5.85 x 4.71 x 3.84mm
USD 26.88
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ID: 3277751 pcs
thumb image of 1.2ct Cushion-Cut Brownish Rose to Red Color-Change Garnet (ID: 327775)
1.20ct Color-Change Garnet
8.58 x 5.03 x 2.59mm
USD 108.00
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ID: 3883371 pcs
thumb image of 0.8ct Round Facet Green/Pink Color-Change Diaspore (ID: 388337)
0.78ct Color-Change Diaspore
5.44 x 3.81mm
USD 25.60
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ID: 2531551 pcs
thumb image of 0.6ct Octagon / Scissor Cut Golden Brown to Orange Color-Change Garnet (ID: 253155)
0.61ct Color-Change Garnet
6.98 x 3.43 x 2.50mm
USD 54.90
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ID: 4221491 pcs
thumb image of 1ct Cushion-Cut Green/Pink Color-Change Diaspore (ID: 422149)
1.04ct Color-Change Diaspore
7.22 x 5.10 x 2.99mm
USD 45.45
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ID: 3916221 pcs
thumb image of 1ct Marquise Facet Green/Pink Color-Change Diaspore (ID: 391622)
0.98ct Color-Change Diaspore
10.92 x 4.63 x 3.06mm
USD 47.50
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ID: 3974841 pcs
thumb image of 0.9ct Oval Facet Green/Pink Color-Change Diaspore (ID: 397484)
0.85ct Color-Change Diaspore
7.94 x 4.81 x 2.77mm
USD 40.54
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Color-Change Gems
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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Size and Weight

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