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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (4741): 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: 2614601 pcs
1.89ct Tourmaline
6.67mm x 6.65mm x 4.59mm
USD 47.25
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ID: 3483921 pcs
2.57ct Tourmaline
28.62mm x 3.65mm x 2.43mm
USD 64.25
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ID: 4359881 pcs
2.11ct Tourmaline
8.07mm x 5.22mm
USD 327.58
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ID: 4195201 pcs
1.29ct Tourmaline
6.51mm x 6.13mm x 4.53mm
USD 64.50
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ID: 3037794 pcs
4.55ctw Tourmaline
7.66mm x 4.99mm
USD 80.08
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ID: 4152931 pcs
1.34ct Tourmaline
7.03mm x 6.17mm x 4.30mm
USD 67.00
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ID: 3835491 pcs
0.74ct Fire Opal
7.36mm x 6.05mm x 3.45mm
USD 23.65
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ID: 4172621 pcs
1.93ct Tourmaline
8.93mm x 6.46mm x 4.09mm
USD 370.52
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ID: 4344231 pcs
0.70ct Tourmaline
6.69mm x 5.19mm x 2.88mm
USD 22.17
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ID: 4150211 pcs
0.87ct Tourmaline
6.36mm x 4.93mm x 4.07mm
USD 29.58
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ID: 3460011 pcs
0.93ct Opal
8.26mm x 6.23mm x 4.68mm
USD 37.20
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ID: 4261671 pcs
0.70ct Tourmaline
6.05mm x 3.07mm
USD 13.42
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ID: 4134114 pcs
3.18ctw Tourmaline
5.93mm x 5.15mm x 3.72mm
USD 100.65
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ID: 4163101 pcs
1.09ct Tourmaline
19.35mm x 2.59mm x 2.11mm
USD 26.16
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ID: 4129531 pcs
1.50ct Tourmaline
7.99mm x 6.27mm x 4.01mm
USD 52.10
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ID: 4011251 pcs
0.71ct Tourmaline
6.63mm x 4.70mm x 3.39mm
USD 34.14
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ID: 2531681 pcs
1.50ct Tourmaline
7.44mm x 6.46mm x 5.01mm
USD 39.85
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ID: 3652241 pcs
13.21ct Boulder Opal
14.39mm x 14.08mm x 7.05mm
USD 92.47
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ID: 4195231 pcs
1.21ct Tourmaline
7.19mm x 5.81mm x 4.10mm
USD 60.50
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ID: 4162431 pcs
0.95ct Tourmaline
10.60mm x 3.46mm x 2.62mm
USD 22.80
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ID: 4200171 pcs
0.86ct Tourmaline
7.02mm x 5.57mm x 3.22mm
USD 32.68
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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

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