October

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

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25 items filtered by: 4.00-4.99ct ×
4.12ct Green Tourmaline Emerald Cut
This beautiful Brazilian tourmaline is ever so slightly bi-coloured with the stone moving from a deeper to more light blue green across the length of the stone the piece is virtually flawless with a 10x loupe bar a minute chip...
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3pc 3.80ct TW Australian Boulder Opal Lot Sold out
This beautiful boulder opal lot has some great shapes and lovely fire. The pieces are all natural boulder opal from Queensland, Australia. Stone Type Opal - Boulder Cut Free-form Weight 3.80ct TW Dimensions Mixed Colour Multi Clarity NA Treatment None Origin...
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 4.72 ct Oval Cabochon Ethiopian Opal 21% off
Ethiopian opal is a relatively new contender on the opal market, however it is capable of producing material with exceptional play of colour and top quality "crystal" opal. This is a lovely warm stone with strong large flashes of red...
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4.22ct Free-form Opalized Shell Crystal
4.22ct Free-form Opalized Shell Crystal. Stone Type Opal - Opalized Shell Cut Free form Weight 4.22ct  Dimensions Approx. 25x10mm 3.4mm deep Colour Multicolour Clarity NA Treatment None Origin Australia, Responsible Sourcing Reference  LG700143 Notes *Please note that this stone has...
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4.21ct Black Opal Cushion Cut
4.21ct black opal in cushion cut with purple undertone from New South Wales, Australia. Stone Type Opal - Black Cut Square Cut Weight 4.21ct  Dimensions Approx. 12.5x12.5mm 3mm deep Colour Multicolour Clarity NA Treatment None Origin Australia, Responsible Sourcing Reference  LG700150...
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4.07ct Boulder Opal Oval Cut Sold out
4.07ct Boulder Opal Oval Cut. Stone Type Opal - Boulder Cut Oval Cut Weight 4.07ct  Dimensions Approx. 12.3x9.3mm 3.5mm deep Colour Multicolour Clarity NA Treatment None Origin Australia, Responsible Sourcing Reference  LG700151 Notes *Please note that this stone has been photographed to...
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4.14ct Semi-Black Opal Free-form
4.14ct Semi-Black Opal Free-form. From NSW, Australia. Stone Type Opal - Semi-Black Cut Free Form Weight 4.14ct  Dimensions Approx. 15.8x9.2mm 4.5mm deep Colour Multicolour Clarity NA Treatment None Origin Australia, Responsible Sourcing Reference  LG700159 Notes *Please note that this stone...
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4.51ct Semi Black Opal Free-form Cabochon
4.51ct Semi Black Opal Free-form Cabochon. Stone Type Opal - Semi-Black Cut Free Form Weight 4.51ct  Dimensions Approx. 16.7x9.1mm 4.7mm deep Colour Multicolour Clarity NA Treatment None Origin Australia, Responsible Sourcing Reference  LG700161 Notes *Please note that this stone has...
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4.53ct Free-form White Opal Cabochon
4.53ct Free-form White Opal Cabochon. Stone Type Opal - White Cut Free Form Weight 4.53ct  Dimensions Approx. 14x11.3mm 5.5mm deep Colour Multicolour Clarity NA Treatment None Origin SA, Australia, Responsible Sourcing Reference  LG700165 Notes *Please note that this stone has been...
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4.94ct Semi-Black Opal Oval Cabochon
4.94ct Semi-Black Opal Oval Cut. Stone Type Opal - Semi-Black Cut Oval Weight 4.94ct  Dimensions Approx. 16x10.5mm 4mm deep Colour Multicolour Clarity NA Treatment None Origin QLD, Australia, Responsible Sourcing Reference  LG700167 Notes *Please note that this stone has been photographed to...
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4.21ct Opalized Wood/Pipe Opal Free Form
4.21ct Opalized Wood/Pipe Opal Free Form. Stone Type Opal - Opalized Wood/Pipe Cut Free Form Weight 4.21ct  Dimensions Approx. 15.5x12mm 4.7mm deep Colour Multicolour Clarity NA Treatment None Origin QLD, Australia, Responsible Sourcing Reference  LG700173 Notes *Please note that this stone...
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4.61ct Teardrop White Opal
4.61ct Free-form White Opal Stone Type Opal - White Cut Free form Weight 4.61ct  Dimensions Approx. 13.9x11.4mm 4.2mm deep Colour Multicolour Clarity NA Treatment None Origin NSW, Australia, Responsible Sourcing Reference  LG700179 Notes *Please note that this stone has been photographed to...
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4.08ct Free-form Black Opal Sold out
4.08ct Free-form Black Opal. Stone Type Opal - Boulder Cut Free-form Weight 4.08ct  Dimensions Approx. 13.3x10.7mm 4.5mm deep Colour Multicolour Clarity NA Treatment None Origin NSW, Australia, Responsible Sourcing Reference  LG700182 Notes *Please note that this stone has been photographed to our...
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4.70ct Black Opal Pair Oval Cut 9% off

4.70ct Black Opal Pair Oval Cut

$2,999.00 $3,290.00

4.70ct Black Opal Pair Oval Cut. A matched pair, cut from two sides of a single stone. Stone Type Opal - Black Cut Oval Weight 4.70ct  Dimensions Approx. 14x11mm 2.35mm deep Colour Multicolour Clarity NA Treatment None Origin NSW, Australia, Responsible...
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4.40ct Opal Cushion Cut
4.40ct Opal Rectangular Cut Stone Type Opal Cut Rectangular Cut Weight 4.40ct  Dimensions Approx. 15.35x12mm 2.65mm deep Colour Multicolour Clarity NA Treatment None Origin SA, Australia, Responsible Sourcing Reference  LG700195 Notes *Please note that this stone has been photographed to our...
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4.08ct Freeform Black Opal
4.08ct Freeform Black Opal. Stone Type Opal - Black Cut Free Form Weight 4.08ct  Dimensions Approx. 13.3x10.7mm 4.5mm deep Colour Multicolour Clarity NA Treatment None Origin NSW, Australia, Responsible Sourcing Reference  LG700199 Notes *Please note that this stone has been photographed to...
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4.67ct Freeform Opalized Wood/Pipe Opal
4.67ct Freeform Opalized Wood/Pipe Opal. Stone Type Opal - Opalized Wood/Pipe Cut Freeform Weight 4.67ct  Dimensions Approx. 12.5x10.4mm 6.5mm deep Colour Multicolour Clarity NA Treatment None Origin QLD, Australia, Responsible Sourcing Reference  LG700219 Notes *Please note that this stone has...
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4.96ct White Opal Trilliant Cut
4.96ct White Opal Trilliant Cut. Stone Type Opal - White Cut Trilliant Cut Weight 4.96ct  Dimensions Approx. 16x12.8mm 3.8mm deep Colour Multicolour Clarity NA Treatment None Origin SA, Australia, Responsible Sourcing Reference  LG700221 Notes *Please note that this stone has been...
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4.37ct Pipe Opal Pentagon
4.37ct Pipe Opal Pentagon. Stone Type Opal - Pipe Cut Pentagon Shape Weight 4.37ct  Dimensions Approx. 12x10.7mm 5.5mm deep Colour Multicolour Clarity NA Treatment None Origin QLD, Australia, Responsible Sourcing Reference  LG700227 Notes *Please note that this stone has been...
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4.41ct Freeform Opal
4.41ct Freeform Opal. Stone Type Opal Cut Freeform Weight 4.41ct  Dimensions Approx. 18.5x9.8mm 2.25mm deep Colour Multicolour Clarity NA Treatment None Origin NSW, Australia, Responsible Sourcing Reference  LG700229 Notes *Please note that this stone has been photographed to our best ability...
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4.40ct Black Opal Parcel Mix Cut
4.40ct nine pieces of black opal in various cuts. Stone Type Opal - Black Opal Cut Mix Cuts Weight 4.40ct  Dimensions   NA Colour Multicolour Clarity NA Treatment None Origin Australia, Responsible Sourcing Reference  LG700244 Notes *Please note that this stone...
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4.83ct Freeform Pipe Opal
4.83ct Freeform Crystal Opal. Stone Type Opal - Crystal Opal Cut Freeform Weight 4.83ct  Dimensions  Approx. 18.5x9 mm 4.4mm Deep Colour Multi-colour Clarity NA Treatment None Origin SA, Australia, Responsible Sourcing Reference  LG700264 Notes *Please note that this stone has been...
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4.54ct Freeform Opal
4.54ct Freeform Opal. Stone Type Opal Cut Free Form Weight 4.54ct  Dimensions  Approx. 17.4x16 mm 2.85mm Deep Colour Multi-colour Clarity NA Treatment None Origin SA, Australia, Responsible Sourcing Reference  LG700277 Notes *Please note that this stone has been photographed to our best...
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4.42ct Freeform Opal
A 4.42ct Freeform Opal with a 7.48ct sister stone cut from the same rough stone, free of charge. Stone Type Opal Cut Free Form Weight 4.42ct - 7.48ct Dimensions  Approx. 16.8x9 mm 4.5mm Deep Colour Multi-colour Clarity NA Treatment None Origin...
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