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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (1097): Star Gemstones - Star Sapphire, Star Ruby, Star Moonstone, Star Rose Quartz, Star Diopside, Star Sunstone, Star Garnet, Star Lemon Quartz Clear All
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thumb image of 17.8ct Oval Cabochon Cream Star Moonstone (ID: 417030)
17.80 ct Star Moonstone
17.7 x 14.8 mm
$ 71.20
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thumb image of 21.2ct Round Cabochon Grayish Silver Star Sapphire (ID: 470844)
21.23 ct Star Sapphire
14.7 mm
$ 743.05
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thumb image of 1.5ct Oval Cabochon Black Star Sapphire (ID: 486773)
1.48 ct Star Sapphire
7.9 x 6.1 mm
$ 14.80
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thumb image of 7.2ct Round Cabochon Cream Star Moonstone (ID: 418852)
7.18 ct Star Moonstone
12.5 mm
$ 28.72
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thumb image of 17.3ct Oval Cabochon Cream Star Moonstone (ID: 325814)
17.25 ct Star Moonstone
17.9 x 14 mm
$ 69.00
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thumb image of 6.8ct Round Cabochon Cream Star Moonstone (ID: 490939)
6.81 ct Star Moonstone
11.5 mm
$ 13.62
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thumb image of 81.2ct Round Cabochon Lemon Star Lemon Quartz (ID: 497513)
81.22 ct Star Lemon Quartz
23.3 mm
$ 243.66
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thumb image of 1.6ct Oval Cabochon Black Star Sapphire (ID: 487256)
1.56 ct Star Sapphire
8.1 x 6.2 mm
$ 15.60
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thumb image of 15.9ct Oval Cabochon Orange Cream Star Moonstone (ID: 262109)
15.93 ct Star Moonstone
14.2 x 13.4 mm
$ 63.72
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thumb image of 3ct Oval Cabochon Black Star Sapphire (ID: 488166)
3.01 ct Star Sapphire
8.6 x 6.8 mm
$ 30.10
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thumb image of 7.3ct Oval Cabochon Cream Star Moonstone (ID: 418398)
7.34 ct Star Moonstone
13.4 x 10.6 mm
$ 29.36
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Click for Product Video (373452)
thumb image of 84.6ct Oval Cabochon Lemon Star Lemon Quartz (ID: 373452)
84.63 ct Star Lemon Quartz
25.2 x 22.5 mm
$ 253.89
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thumb image of 15.3ct Oval Cabochon Cream Star Moonstone (ID: 418543)
15.31 ct Star Moonstone
19.2 x 14 mm
$ 61.24
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Click for Product Video (492849)
thumb image of 114.5ct Oval Cabochon Lemon Star Lemon Quartz (ID: 492849)
114.50 ct Star Lemon Quartz
26.6 x 25.5 mm
$ 229.00
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thumb image of 20.3ct Oval Cabochon Black Star Sapphire (ID: 350892)
20.32 ct Star Sapphire
19.2 x 15.9 mm
$ 553.92
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thumb image of 1.6ct Oval Cabochon Black Star Sapphire (ID: 487000)
1.57 ct Star Sapphire
8.4 x 6 mm
$ 15.70
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thumb image of 6.7ct Oval Cabochon Cream Star Moonstone (ID: 416969)
6.73 ct Star Moonstone
10.8 x 9.8 mm
$ 26.92
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thumb image of 2.7ct Oval Cabochon Black Star Sapphire (ID: 488643)
2.73 ct Star Sapphire
8.9 x 6.7 mm
$ 27.30
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thumb image of 7.8ct Oval Cabochon Purplish Red Star Ruby (ID: 468605)
7.81 ct Star Ruby
12.3 x 10 mm
$ 62.48
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thumb image of 14.8ct Oval Cabochon Cream Star Moonstone (ID: 417026)
14.83 ct Star Moonstone
18.6 x 14.9 mm
$ 59.32
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Click for Product Video (373455)
thumb image of 89.2ct Oval Cabochon Lemon Star Lemon Quartz (ID: 373455)
89.17 ct Star Lemon Quartz
25.2 x 24 mm
$ 267.51
Item in Stock
Star Gemstones
In the world of gemstones, there is a small but special group of gems known to exhibit chatoyancy, either in the form of 'simple' chatoyancy, cat's eye chatoyancy or asterism (star chatoyancy). Gems that display the star effect are rare and fascinating. Chatoyancy is one of several forms of optical phenomena; other forms of optical phenomena include (but are not limited to) color-change, iridescence (the rainbow effect) and adularescence (shimmering light). Gems which display chatoyancy are known as 'phenomenal gemstones' and are heavily prized by jewelers and collectors for their rare and unique visible traits. The star phenomena is known to occur in only a handful of different gem types, such as star sapphire, star ruby, star garnet, star quartz, star moonstone and star diopside.

The value of star gemstones usually depends on the clarity of the 'star'. Gems which display sharp, clear and well-centered stars are generally considered to be of higher quality. In addition, gems which show stars from wider angles and under all different types of lighting are valued the most. Most star gemstones will often show their chatoyancy only when viewed under a single strong and focused light source; it is usually very difficult to see any asterism under diffused light. When viewing a star gemstone, it is best to use a flashlight or penlight while tilting the gem and light back and forth. This should cause the star to appear to glide across the stone's surface. Star gemstones are always cut en cabochon, as this is the best way to maximize chatoyancy. Gem cutters must be careful when working with star gemstones, as it requires great skill to properly shape and orient the stones.
Certified Customer Reviews
Overall Rating -> 10 star ratings
offer military prices
Posted By Frobb1968 in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Trustworthy company & site, great products.
Posted By KM in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
I have been ordering from GemSelect for at least 6 years. Every single order was perfect - every item was as advertized, in perfect condition and arrived well within the specified time frame. I have recommended them to several friends.
Posted By Jim in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Excellent company with excellent website!
Posted By Marcy in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Happy with price and ease of purchase. Will tell others
Posted By JJ Kool Juan in August, 2018
Source: Bizrate
Overall Rating -> 10 star ratings
Very pleased with my purchase in all aspects!!!!!
Posted By JJ Kool Juan in August, 2018
Source: Bizrate
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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

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