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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (3893): October Birthstones Tourmaline, Fire Opal, Moss Opal, Opal, Opal Doublet, Cat's Eye Tourmaline, Paraiba Tourmaline, Chrome Tourmaline, Rubellite Tourmaline, Boulder Opal, Chocolate Opal, Black Opal Clear All
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ID: 3908761 pcs
thumb image of 1.6ct Octagon Facet Green Tourmaline (ID: 390876)
1.58 ct Tourmaline
14.4 x 3.7 mm
$ 34.76
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ID: 4016002 pcs
thumb image of 1.1ct Oval Facet Golden Brown Tourmaline (ID: 401600)
1.07 ct Tourmaline
5.9 x 4.7 mm
$ 40.02
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ID: 3668751 pcs
thumb image of 1.6ct Trillion Facet Reddish Orange Fire Opal (ID: 366875)
1.57 ct Fire Opal
8.9 x 8.9 mm
$ 61.51
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ID: 4627244 pcs
thumb image of 1.3ct Oval Facet Multicolor Opal (ID: 462724)
1.32 ct Opal
6.9 x 5.1 mm
$ 52.80
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ID: 4504042 pcs
thumb image of 2.5ct Oval Facet Orange Fire Opal (ID: 450404)
2.51 ct Fire Opal
9 x 7.1 mm
$ 67.22
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ID: 4067915 pcs
thumb image of 3.8ct Oval Facet Multicolor Tourmaline (ID: 406791)
3.80 ct Tourmaline
6.9 x 5.2 mm
$ 138.05
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ID: 4495784 pcs
thumb image of 2.1ct Oval Facet Orange Fire Opal (ID: 449578)
2.10 ct Fire Opal
7.1 x 5.2 mm
$ 56.26
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ID: 3280041 pcs
thumb image of 17.4ct Octagon Facet Bi-color Tourmaline (ID: 328004)
17.35 ct Tourmaline
66.5 x 6.3 mm
$ 3470.50
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ID: 4514571 pcs
thumb image of 1.9ct Pear Facet Purplish Red Rubellite Tourmaline (ID: 451457)
1.90 ct Rubellite Tourmaline
10.1 x 6.8 mm
$ 570.00
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ID: 3832011 pcs
thumb image of 0.6ct Oval Facet Reddish Orange Fire Opal (ID: 383201)
0.56 ct Fire Opal
5.9 x 5.2 mm
$ 17.93
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ID: 3683002 pcs
thumb image of 2.3ct Oval Cabochon Orange Opal (ID: 368300)
2.28 ct Opal
8.9 x 7.1 mm
$ 62.81
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ID: 4296471 pcs
thumb image of 2ct Pear Facet Purplish Red Rubellite Tourmaline (ID: 429647)
1.95 ct Rubellite Tourmaline
10.1 x 6.9 mm
$ 599.99
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ID: 4132691 pcs
thumb image of 1.1ct Oval Facet Green Tourmaline (ID: 413269)
1.12 ct Tourmaline
7.5 x 6 mm
$ 35.45
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ID: 3212371 pcs
thumb image of 1.1ct Oval Facet Multicolor Opal (ID: 321237)
1.14 ct Opal
9.4 x 7.3 mm
$ 45.60
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ID: 3784312 pcs
thumb image of 0.9ct Oval Facet Yellowish Green Tourmaline (ID: 378431)
0.94 ct Tourmaline
6 x 4.2 mm
$ 28.20
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ID: 3668961 pcs
thumb image of 1ct Oval Facet Orange Fire Opal (ID: 366896)
1.01 ct Fire Opal
8.2 x 6.2 mm
$ 39.39
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ID: 4626814 pcs
thumb image of 1.8ct Oval Facet Multicolor Opal (ID: 462681)
1.75 ct Opal
7 x 5 mm
$ 70.00
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ID: 4539122 pcs
thumb image of 1.5ct Oval Facet Orange Fire Opal (ID: 453912)
1.52 ct Fire Opal
7.9 x 5.9 mm
$ 40.04
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ID: 3788364 pcs
thumb image of 3.2ct Baguette Facet Multicolor Tourmaline (ID: 378836)
3.16 ct Tourmaline
8 x 4 mm
$ 143.78
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ID: 4164631 pcs
thumb image of 12.3ct Oval Facet Golden Green Tourmaline (ID: 416463)
12.25 ct Tourmaline
15.7 x 12.8 mm
$ 2450.00
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ID: 4506984 pcs
thumb image of 1.8ct Oval Facet Orange Fire Opal (ID: 450698)
1.81 ct Fire Opal
6.9 x 5 mm
$ 48.47
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October Birthstones
Opal and tourmaline are the birthstones for October, providing choices in every possible color. More than any other gem, each opal is distinctly an individual. No other stone has as rich and varied a folklore. Opals are also the most delicate gems commonly worn. They require special care to ensure their health and longevity.

Tourmaline derives from the Sinhalese term "turamali", which translates as "stone of mixed colors". The very name refers to the unique spectrum of colors displayed by this gemstone, which is second to none in the realm of precious stones. One of the most versatile of gemstones, tourmaline is available in every color, from colorless to black. It can show every tone from pastel to dark, and can exhibit various colors in the same stone.

The astrological stone for Scorpio is beryl. Beryl is one of the most important mineral groups and also one of the biggest gemstone groups. Although the mineral is abundant, it rarely occurs in transparent gem-quality material. Transparent gem-quality beryl is referred to as 'precious beryl'. The most famous beryl gemstone is green emerald, followed by blue aquamarine. Golden beryl is not very well-known by the general public. Other popular beryl gems include pink 'morganite' and white, or colorless, 'goshenite'. Red beryl is the rarest variety of beryl and it is known in the trade as 'bixbite'.
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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