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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (4411): 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: 3503011 pcs
thumb image of 1.6ct Octagon Facet Green Tourmaline (ID: 350301)
1.64ct Tourmaline
12.65 x 3.87 x 3.39mm
USD 36.08
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ID: 3702661 pcs
thumb image of 2.1ct Cushion-Cut Reddish Orange Fire Opal (ID: 370266)
2.08ct Fire Opal
10.43 x 7.91 x 5.53mm
USD 93.60
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ID: 4053161 pcs
thumb image of 1.1ct Pear Facet Orange Fire Opal (ID: 405316)
1.07ct Fire Opal
10.97 x 6.85 x 4.36mm
USD 25.16
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ID: 4164671 pcs
thumb image of 8ct Octagon Facet Rose Pink Tourmaline (ID: 416467)
8.02ct Tourmaline
14.35 x 10.05 x 6.65mm
USD 2807.00
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ID: 3788064 pcs
thumb image of 1.9ct Oval Facet Yellowish Green Tourmaline (ID: 378806)
1.87ct Tourmaline
6.00 x 4.13 x 3.00mm
USD 85.08
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ID: 4161641 pcs
thumb image of 1.9ct Octagon Facet Green Tourmaline (ID: 416164)
1.88ct Tourmaline
20.94 x 3.26 x 2.81mm
USD 45.12
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ID: 3805111 pcs
thumb image of 0.7ct Oval Facet Golden Green Tourmaline (ID: 380511)
0.72ct Tourmaline
5.94 x 4.67 x 3.67mm
USD 21.78
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ID: 3537021 pcs
thumb image of 6.1ct Pear Cabochon Multicolor Boulder Opal (ID: 353702)
6.14ct Boulder Opal
16.03 x 10.01 x 4.53mm
USD 42.98
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ID: 3670361 pcs
thumb image of 3.2ct Oval Facet Reddish Orange Fire Opal (ID: 367036)
3.20ct Fire Opal
11.33 x 9.49 x 6.63mm
USD 106.72
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ID: 3468101 pcs
thumb image of 1.8ct Octagon Facet Green Tourmaline (ID: 346810)
1.82ct Tourmaline
14.74 x 4.05 x 2.99mm
USD 40.04
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ID: 4067944 pcs
thumb image of 2.7ct Oval Facet Golden Green Tourmaline (ID: 406794)
2.71ct Tourmaline
6.89 x 4.94 x 2.91mm
USD 98.45
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ID: 3796381 pcs
thumb image of 1.3ct Oval Facet Green Tourmaline (ID: 379638)
1.33ct Tourmaline
7.01 x 6.09 x 4.37mm
USD 66.85
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ID: 3650621 pcs
thumb image of 1.7ct Octagon Facet Green Tourmaline (ID: 365062)
1.72ct Tourmaline
17.69 x 3.74 x 2.48mm
USD 34.31
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ID: 3488401 pcs
thumb image of 24.2ct Pear Checkerboard Black Tourmaline (ID: 348840)
24.20ct Tourmaline
20.56 x 17.16 x 11.34mm
USD 121.00
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ID: 3694461 pcs
thumb image of 1.9ct Oval Facet Reddish Orange Fire Opal (ID: 369446)
1.92ct Fire Opal
9.63 x 7.88 x 5.18mm
USD 62.27
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ID: 4411671 pcs
thumb image of 1.5ct Oval Facet Yellowish Green Tourmaline (ID: 441167)
1.48ct Tourmaline
7.69 x 6.48 x 4.35mm
USD 44.40
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ID: 3981161 pcs
thumb image of 1ct Octagon Facet Green Tourmaline (ID: 398116)
1.03ct Tourmaline
14.88 x 3.32 x 2.15mm
USD 22.66
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ID: 3697321 pcs
thumb image of 3.5ct Oval Facet Reddish Orange Fire Opal (ID: 369732)
3.46ct Fire Opal
13.14 x 9.89 x 5.90mm
USD 112.21
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ID: 3695721 pcs
thumb image of 1.2ct Round Facet Reddish Orange Fire Opal (ID: 369572)
1.23ct Fire Opal
7.61 x 5.21mm
USD 39.89
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ID: 4342781 pcs
thumb image of 0.8ct Oval Facet Green Tourmaline (ID: 434278)
0.77ct Tourmaline
6.05 x 5.42 x 3.65mm
USD 24.39
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ID: 3669191 pcs
thumb image of 2.9ct Oval Facet Orange Fire Opal (ID: 366919)
2.85ct Fire Opal
11.22 x 8.70 x 5.95mm
USD 111.15
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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