Jewelry New Arrivals Pairs Lots Contact
  : Star Cabochons
Shop By

Single

Pairs

Lots

Faceted

Cab

Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (133): Star Cabochons Star Sapphire, Star Ruby, Star Moonstone, Star Rose Quartz, Star Diopside, Star Sunstone, Star Garnet, Star Lemon Quartz Clear All
Sort By:
Compare
ID: 4040041 pcs
thumb image of 57.5ct Oval Cabochon Black Red Star Garnet (ID: 404004)
57.48 ct Star Garnet
24.4 x 20.4 mm
$ 172.44
Quantity
Item in Stock
Compare
ID: 3801941 pcs
thumb image of 47.5ct Round Cabochon Reddish Black Star Garnet (ID: 380194)
47.52 ct Star Garnet
18.6 mm
$ 237.60
Quantity
Item in Stock
Compare
ID: 3444391 pcs
thumb image of 105.3ct Oval Cabochon Pink Star Rose Quartz (ID: 344439)
105.30 ct Star Rose Quartz
30.4 x 26.1 mm
$ 264.50
Quantity
Item in Stock
Compare
ID: 3885381 pcs
thumb image of 6.3ct Oval Cabochon Black Star Sapphire (ID: 388538)
6.32 ct Star Sapphire
14.7 x 11.6 mm
$ 150.54
Quantity
Item in Stock
Compare
ID: 4140851 pcs
thumb image of 6.9ct Oval Cabochon Cream Peach Star Moonstone (ID: 414085)
6.89 ct Star Moonstone
12.3 x 10.1 mm
$ 27.56
Quantity
Item in Stock
Compare
ID: 3906521 pcs
thumb image of 10.4ct Oval Cabochon Black Star Sapphire (ID: 390652)
10.43 ct Star Sapphire
13.2 x 10.4 mm
$ 156.45
Quantity
Item in Stock
Compare
ID: 3875341 pcs
thumb image of 6.6ct Oval Cabochon Black Star Sapphire (ID: 387534)
6.57 ct Star Sapphire
11.8 x 8.7 mm
$ 131.40
Quantity
Item in Stock
Compare
ID: 4040101 pcs
thumb image of 102.6ct Round Cabochon Black Red Star Garnet (ID: 404010)
102.57 ct Star Garnet
26.5 mm
$ 307.71
Quantity
Item in Stock
Compare
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
Quantity
Item in Stock
Compare
ID: 3858581 pcs
thumb image of 9.8ct Oval Cabochon Black Star Sapphire (ID: 385858)
9.82 ct Star Sapphire
12.1 x 10.8 mm
$ 147.30
Quantity
Item in Stock
Compare
ID: 4038911 pcs
thumb image of 80.8ct Round Cabochon Black Red Star Garnet (ID: 403891)
80.78 ct Star Garnet
24.4 mm
$ 242.34
Quantity
Item in Stock
Compare
ID: 3508861 pcs
thumb image of 8ct Oval Cabochon Black Star Sapphire (ID: 350886)
7.96 ct Star Sapphire
13.8 x 10.6 mm
$ 153.71
Quantity
Item in Stock
Compare
ID: 3508931 pcs
thumb image of 27.2ct Oval Cabochon Black Star Sapphire (ID: 350893)
27.17 ct Star Sapphire
17.9 x 14.7 mm
$ 740.65
Quantity
Item in Stock
Compare
ID: 4140941 pcs
thumb image of 6.5ct Oval Cabochon Cream Peach Star Moonstone (ID: 414094)
6.47 ct Star Moonstone
10.9 x 9.9 mm
$ 25.88
Quantity
Item in Stock
Compare
ID: 3506421 pcs
thumb image of 32.7ct Oval Cabochon Black Star Sapphire (ID: 350642)
32.66 ct Star Sapphire
18.8 x 15 mm
$ 890.31
Quantity
Item in Stock
Compare
ID: 4031911 pcs
thumb image of 14.9ct Oval Cabochon Cream Star Moonstone (ID: 403191)
14.92 ct Star Moonstone
15.7 x 12.7 mm
$ 52.67
Quantity
Item in Stock
Compare
ID: 3876911 pcs
thumb image of 4.2ct Oval Cabochon Black Star Sapphire (ID: 387691)
4.19 ct Star Sapphire
11.5 x 9.1 mm
$ 83.80
Quantity
Item in Stock
Compare
ID: 3508921 pcs
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
Quantity
Item in Stock
Compare
ID: 4040051 pcs
thumb image of 71.4ct Oval Cabochon Black Red Star Garnet (ID: 404005)
71.36 ct Star Garnet
27 x 21.2 mm
$ 214.08
Quantity
Item in Stock
Compare
ID: 4141051 pcs
thumb image of 8.6ct Oval Cabochon Cream Star Moonstone (ID: 414105)
8.56 ct Star Moonstone
12.7 x 10.2 mm
$ 34.24
Quantity
Item in Stock
Compare
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
Quantity
Item in Stock
1
2
3
4
5
6
7
Star Cabochons
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.
English speaking customer support only

Toll Free - USA & Canada only:
1-800-464-1640

International:
+66-39303404

Reorder Items

Save Money
No shipping Fees for Additional Items!
$6.99 Worldwide Shipping

GemSelect Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
X Close Window
Colored Gemstones
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