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Gemtype Color Shape Weight Size Date Clarity Price Origin
You Selected (4701): 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: 3908801 pcs
1.60ct Tourmaline
16.96mm x 3.68mm x 2.53mm
USD 35.20
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ID: 3650631 pcs
1.55ct Tourmaline
19.08mm x 3.16mm x 2.59mm
USD 30.92
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ID: 3791892 pcs
1.55ctw Tourmaline
7.07mm x 5.06mm x 3.26mm
USD 70.32
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ID: 4288092 pcs
1.57ctw Opal
8.18mm x 6.11mm x 3.36mm
USD 43.96
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ID: 3473311 pcs
2.54ct Tourmaline
23.04mm x 3.81mm x 2.78mm
USD 63.50
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ID: 4318982 pcs
1.65ctw Fire Opal
8.09mm x 6.15mm x 4.25mm
USD 43.87
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ID: 4261601 pcs
0.97ct Tourmaline
7.40mm x 5.17mm x 3.77mm
USD 18.59
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ID: 3704101 pcs
12.66ct Tourmaline
24.84mm x 7.36mm x 7.11mm
USD 47.98
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ID: 4172081 pcs
3.14ct Tourmaline
10.76mm x 8.44mm x 5.54mm
USD 602.82
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ID: 4215201 pcs
1.22ct Tourmaline
6.97mm x 5.89mm x 4.03mm
USD 61.00
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ID: 37942415 pcs
2.21ctw Tourmaline
3.04mm x 3.00mm x 2.18mm
USD 77.35
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ID: 3184021 pcs
1.14ct Opal
9.06mm x 7.04mm x 4.96mm
USD 47.88
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ID: 4288112 pcs
1.63ctw Opal
8.24mm x 6.20mm x 3.60mm
USD 45.64
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ID: 4312781 pcs
0.85ct Opal
7.31mm x 6.41mm x 3.98mm
USD 17.00
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ID: 4293441 pcs
0.66ct Opal
8.19mm x 6.09mm x 2.81mm
USD 18.48
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ID: 3983881 pcs
2.51ct Tourmaline
13.94mm x 4.59mm x 3.82mm
USD 135.16
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ID: 4198161 pcs
1.13ct Tourmaline
6.05mm x 5.75mm x 4.69mm
USD 54.24
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ID: 3841741 pcs
1.17ct Tourmaline
13.28mm x 3.58mm x 2.68mm
USD 22.58
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ID: 4212841 pcs
1.32ct Tourmaline
7.09mm x 6.10mm x 4.46mm
USD 66.00
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ID: 2607554 pcs
1.94ctw Tourmaline
5.52mm x 3.74mm
USD 34.14
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ID: 3476461 pcs
3.28ct Tourmaline
26.53mm x 3.72mm x 3.28mm
USD 98.40
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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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