October

The birthstones for those born in October are Opal and Tourmaline.

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15 items filtered by: 3.00-3.99ct ×
3.25ct Australian Solid Opal
 This stunning Lightning Ridge solid opal has beautiful soft green fire with hints of dark blue and orange flashes as well. The stone is a nice standard oval making it much easier to set the piece.  Stone Type Opal - Solid...
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3.60ct Light Green Tourmaline Square Emerald Cut
This gorgeous light bright green tourmaline is beautifully cut with great light return enhanced by the gem's excellent clarity.   Stone Type Tourmaline Cut Cushion Cut Weight 3.60ct Dimensions 8.6x8.4x7.1mm Colour Green Clarity VS Treatment Standard heat treatment Origin Pakistan, regular...
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3.87ct Light Green Tourmaline Square Emerald Cut
This lovely light bright green tourmaline is beautifully cut with great light return enhanced by the gem's excellent clarity. The piece has some very minor parcel wear visible under high magnification   Stone Type Tourmaline Cut Square Emerald Cut Weight 3.87ct Dimensions...
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3.51ct Free-form Opalized Shell Crystal Sold out
3.51ct Free-form Opalized Shell Crystal. Stone Type Opal - Opalized Shell Cut Free form Weight 3.51ct  Dimensions Approx. 20x15mm 3.2mm deep Colour Multicolour Clarity NA Treatment None Origin Australia, Responsible Sourcing Reference  LG700144 Notes *Please note that this stone has...
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3.70ct White Opal Oval Cut
3.70ct White Opal Oval Cut. Stone Type Opal - White Cut Oval Weight 3.70ct  Dimensions Approx. 13.9x11.3mm 3.9mm deep Colour Multicolour Clarity NA Treatment None Origin Australia, Responsible Sourcing Reference  LG700158 Notes *Please note that this stone has been photographed to our...
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3.37ct White Opal Cushion Cut
3.37ct White Opal Cushion Cut from Queensland, Australia. Stone Type Opal - White Cut Rectangular Cut Weight 3.37ct  Dimensions Approx. 10.5x9mm 4.3mm deep Colour Multicolour Clarity NA Treatment None Origin QLD, Australia, Responsible Sourcing Reference  LG700162 Notes *Please note that this...
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3.41ct Semi Black Opal Pear Cut
3.41ct Semi Black Opal Pear Cut. Stone Type Opal - Semi Black Cut Pear Shape Weight 3.41ct  Dimensions Approx. 14.9x11mm 3mm deep Colour Multicolour Clarity NA Treatment None Origin Australia, Responsible Sourcing Reference  LG700193 Notes *Please note that this stone...
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3.91ct Freeform Boulder Opal
3.91ct Freeform Boulder Opal. Stone Type Opal - Boulder Cut Free Form Weight 3.91ct  Dimensions Approx. 14.3x9.7mm 3.5mm deep Colour Multicolour Clarity NA Treatment None Origin Australia, Responsible Sourcing Reference  LG700201 Notes *Please note that this stone has been photographed to...
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3.64ct Rectangular Pipe Opal
3.64ct Rectangular Pipe Opal. Stone Type Opal - Pipe Cut Rectangular Weight 3.64ct  Dimensions Approx. 16x6mm 4mm deep Colour Multicolour Clarity NA Treatment None Origin QLD, Australia, Responsible Sourcing Reference  LG700218 Notes *Please note that this stone has been photographed to...
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3.10ct Freeform White Opal
3.10ct Freeform White Opal. Stone Type Opal - White Cut Freeform Weight 3.10ct  Dimensions Approx. 18.7x7.9mm 2.9mm deep Colour Multicolour Clarity NA Treatment None Origin NSW, Australia, Responsible Sourcing Reference  LG700230 Notes *Please note that this stone has been photographed to...
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3.14ct Pipe Opal Odd Shape
3.14ct Pipe Opal Free Form Shape. Stone Type Opal - Pipe Opal Cut Free-form Weight 3.14ct  Dimensions Approx. 16.3x8.4mm 3.8mm deep Colour Multicolour Clarity NA Treatment None Origin SA, Australia, Responsible Sourcing Reference  LG700232 Notes *Please note that this stone has...
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3.95ct Freeform Pipe Opal
3.95ct Freeform Pipe Opal. Stone Type Opal - Pipe Opal Cut Freeform Shape Weight 3.95ct  Dimensions Approx. 16.2x9.4mm 4.8mm deep Colour Multicolour Clarity NA Treatment None Origin SA, Australia, Responsible Sourcing Reference  LG700237 Notes *Please note that this stone has been...
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3.18ct Oval White Opal Cabochon
3.18ct Oval White Opal Cabochon. Stone Type Opal - White Opal Cut Oval Cabochon Weight 3.18ct  Dimensions  Approx. 13x10 mm 4mm Deep Colour Multi-colour Clarity NA Treatment None Origin NSW, Australia, Responsible Sourcing Reference  LG700265 Notes *Please note that this stone has...
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3.59ct Freeform Pipe Opal
3.59ct Freeform Boulder Opal. Stone Type Opal - Boulder Opal Cut Free Form Weight 3.59ct  Dimensions  Approx. 13.3x9 mm 4.35mm Deep Colour Multi-colour Clarity NA Treatment None Origin QLD, Australia, Responsible Sourcing Reference  LG700272 Notes *Please note that this stone has...
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3.31ct Pear Cut Opal Cabochon
3.31ct Pear Cut Opal Cabochon. Stone Type Opal - Crystal Cut Pear Cut, Cabochon Weight 3.31ct  Dimensions  Approx. 15.2x9.5 mm 3.85mm Deep Colour Multi-colour Clarity NA Treatment None Origin Australia, Responsible Sourcing Reference  LG700273 Notes *Please note that this stone has...
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