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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (161): 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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ID: 4632041 pcs
thumb image of 5.7ct Round Cabochon Cream Peach Star Moonstone (ID: 463204)
5.66 ct Star Moonstone
10.2 mm
$ 22.64
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ID: 4170221 pcs
thumb image of 17.9ct Oval Cabochon Cream Peach Star Moonstone (ID: 417022)
17.93 ct Star Moonstone
16.6 x 15.3 mm
$ 71.72
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ID: 3258141 pcs
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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ID: 3734561 pcs
thumb image of 81.2ct Round Cabochon Lemon Star Lemon Quartz (ID: 373456)
81.22 ct Star Lemon Quartz
23.7 mm
$ 243.66
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ID: 2621091 pcs
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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ID: 3052491 pcs
thumb image of 156.6ct Oval Cabochon Pink Star Rose Quartz (ID: 305249)
156.55 ct Star Rose Quartz
32.1 x 28.3 mm
$ 344.41
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ID: 3547641 pcs
thumb image of 270.2ct Round Cabochon Pink Star Rose Quartz (ID: 354764)
270.20 ct Star Rose Quartz
37.2 mm
$ 540.40
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ID: 3053791 pcs
thumb image of 163.2ct Oval Cabochon Pink Star Rose Quartz (ID: 305379)
163.20 ct Star Rose Quartz
32.1 x 28.8 mm
$ 326.40
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ID: 4692281 pcs
thumb image of 64.3ct Oval Cabochon Lemon Star Lemon Quartz (ID: 469228)
64.30 ct Star Lemon Quartz
23.3 x 22.1 mm
$ 135.03
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ID: 3734551 pcs
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
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ID: 3734611 pcs
thumb image of 78.7ct Oval Cabochon Lemon Star Lemon Quartz (ID: 373461)
78.67 ct Star Lemon Quartz
24.1 x 22.7 mm
$ 236.01
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ID: 3444381 pcs
thumb image of 236.3ct Oval Cabochon Pink Star Rose Quartz (ID: 344438)
236.30 ct Star Rose Quartz
38.2 x 36.2 mm
$ 590.75
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ID: 4692291 pcs
thumb image of 50.9ct Oval Cabochon Lemon Star Lemon Quartz (ID: 469229)
50.90 ct Star Lemon Quartz
23.1 x 20 mm
$ 106.89
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ID: 3734521 pcs
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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ID: 4686141 pcs
thumb image of 4.7ct Oval Cabochon Purplish Red Star Ruby (ID: 468614)
4.74 ct Star Ruby
9.6 x 8.3 mm
$ 52.14
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ID: 4692301 pcs
thumb image of 39.9ct Oval Cabochon Lemon Star Lemon Quartz (ID: 469230)
39.91 ct Star Lemon Quartz
21.7 x 17.3 mm
$ 83.81
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ID: 3547631 pcs
thumb image of 383ct Oval Cabochon Pink Star Rose Quartz (ID: 354763)
382.95 ct Star Rose Quartz
44.4 x 42.5 mm
$ 765.90
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ID: 4686681 pcs
thumb image of 5.1ct Oval Cabochon Purplish Red Star Ruby (ID: 468668)
5.13 ct Star Ruby
10 x 9.1 mm
$ 56.43
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ID: 3072881 pcs
thumb image of 311.7ct Oval Cabochon Pink Star Rose Quartz (ID: 307288)
311.65 ct Star Rose Quartz
43.5 x 42 mm
$ 623.30
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ID: 3734571 pcs
thumb image of 67.5ct Oval Cabochon Lemon Star Lemon Quartz (ID: 373457)
67.54 ct Star Lemon Quartz
23.5 x 20.4 mm
$ 202.62
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ID: 4686111 pcs
thumb image of 4.6ct Round Cabochon Purplish Red Star Ruby (ID: 468611)
4.61 ct Star Ruby
8.7 mm
$ 50.71
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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.
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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