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Outstanding & unique 117 ct Lightning ridge black opal, set in…

117 ct Lightning Ridge Black Opal Belt Buckle

Outstanding & unique 117 ct Lightning ridge black opal, set in a ladies 18ct gold belt buckle with a diamond and emerald surround, and a bespoke Hermes crocodile belt approx Specifications: GSL certificate, solid natural opal (type 1), Variety black N2,…

A loose Lightning Ridge oval opal

Freeform Fire: Lightning Ridge Opal

A loose Lightning Ridge oval opal

A loose solid black opal, the oval opal cut en cabochon…

9.71ct Oval Black Opal with Colorful Play of Colors

A loose solid black opal, the oval opal cut en cabochon displaying green, blue and red play of colours, measuring 22.9 mm x 14.45 mm weighing 9.71cts

A loose Olympic field crystal oval opal

Opal Oval: A Loose Olympic Field Crystal

A loose Olympic field crystal oval opal

A good unmounted oval Australian black opal. Lightning ridge…

Vibrant 3.6 ct Lightning Ridge Black Opal Oval

A good unmounted oval Australian black opal. Lightning ridge type, 3.6 carats. Dimensions 13.6 mm x 10 mm. Showing a vibrant colour display.

A loose opal, the freeform opal weighing 131.6cts.

131.6ct Freeform Opal

A loose opal, the freeform opal weighing 131.6cts.

A collection of tumbled white opal, the three opals mounted in…

Melba's White Opal Collection

A collection of tumbled white opal, the three opals mounted in pronged metal settings, length approximately 63 mm. Property from the Collection of Dame Nellie Melba GBE

An unset 42.44ct Ethiopian opal; pear cabochon cut, 36.93 x 19.…

42.44ct Ethiopian Opal Pear Cabochon with Lab Report

An unset 42.44ct Ethiopian opal; pear cabochon cut, 36.93 x 19.54 x 11.27 mmm, with lab report/cert.

A loose opal of 20.30ct, one loose oval cabochon cut and…

20.30ct Dark Opal Cabochon with Spectral Colors

A loose opal of 20.30ct, one loose oval cabochon cut and polished dark opal, measuring 25.1 x 15.1 x, 8.22 mm, weighing a known weight of 20.30ct, displaying large rolling blocks, of green and blue spectral colours. Valuation on request.

A loose Lightning Ridge opal

Free-Flowing Opal from Lightning Ridge

A loose Lightning Ridge opal

Oval cabochon opal 17.0 x 10.4 x 5.3 mm, good play of colour…

Pink, Green, and Yellow Opal Cabochon - 4.84ct

Oval cabochon opal 17.0 x 10.4 x 5.3 mm, good play of colour being pinks, greens, yellow and yellowish green. Weight: 4.84ct.

An opal and diamond cluster ring, the oval solid white opal cut…

Opal and Diamond Cluster Ring

An opal and diamond cluster ring, the oval solid white opal cut en cabochon having four graduated round brilliant cut diamonds set to each shoulder totalling 0.80cts, mounted in 18ct white gold, ring size U. Condition: ring presents in good condition.…

Opal. A rectangular cabochon of natural semi black opal with…

Semi Black Opal Cabochon with Colorful Hues

Opal. A rectangular cabochon of natural semi black opal with greens and blues to one side and reds and oranges to the other size 24 x 11.2 mm

A loose oval Lightning Ridge black opal

Radiant Oval: Lightning Ridge Black Opal

A loose oval Lightning Ridge black opal

A loose Lightning Ridge oval black opal

Loose Oval Black Opal from Lightning Ridge

A loose Lightning Ridge oval black opal

Large attractive opal with great paly of colour this oval…

Harlequin Opal: 40.55ct Oval Cabochon with Play of Colour

Large attractive opal with great paly of colour this oval cabochon cut light opal with harlequin pattern in purple, reddish pink, green and yellow colours and has a total weight of 40.55ct.

A loose crystal white opal, one loose freeform cabochon crystal…

Sparkling 13.34ct Crystal White Opal Cabochon

A loose crystal white opal, one loose freeform cabochon crystal white opal, measuring 14.8 mm x 27 mm, strong aqua, green and blue in colour with flashes of orange, weighing 13.34ct

Solid light opal a pear shape, cabochon cut light opal, N6-N7…

Pear-shaped Solid Light Opal Cabochon with Play of Colour

Solid light opal a pear shape, cabochon cut light opal, N6-N7 body colour with play of colour seen, reds, purple blues, and some green. Dimensions: 13 x 16 x 4.5 mm. Weight 4.9 grams.

An 11.9ct oval cabochon cut opal bright white opal with…

11.9ct Oval Opal with Dominant Red-Pink Colors

An 11.9ct oval cabochon cut opal bright white opal with dominate red to pink colours some greens and violet seen large broad intense to strong flashes 21 x 16 mm and 2.4 grams

Three loose opals. Presented as three loose opals, two oval…

Vibrant Loose Opals: Trio of Multi-Spectral Gems

Three loose opals. Presented as three loose opals, two oval shaped, one pear shaped, each of strong multi spectral colours, measuring 45 x 35 mm, 22 x 17 mm and 20 x 13 mm

An unset solid white opal; displaying fine spectral colours, wt.…

Fine Spectral White Opal, 15ct

An unset solid white opal; displaying fine spectral colours, wt. 15ct

Five loose black / dark opal cabochons. pair 6.5 x 4.7 mm = 1.…

Assorted Dark Opal Cabochons - 7.90ct Total Weight

Five loose black / dark opal cabochons. pair 6.5 x 4.7 mm = 1.2ct. 10 x 7 mm = 4.7ct. Round 7 mm = 1.15ct. 5.5 x 9 mm = 0.85ct (very strong play of colour). Total = 7.90ct

Loose opal showing greens, blues, flashes of orange red and…

Multi-Colored Opal: 5.35ct Loose Gemstone

Loose opal showing greens, blues, flashes of orange red and purple. Approx estimated weight 5.35ct, dimensions 23 mm x 8.4 mm x 3.4 mm

Two light oval shaped cabochon cut opals green, blue and purple…

Colorful Oval Opal Cabochons - 11.8ct Total Weight

Two light oval shaped cabochon cut opals green, blue and purple colours showing, and dimensions of 19.7 x 14 mm and 18 x 12 mm with a total collective weight of 11.8ct.

A loose blue green opal, the solid oval opal weighing 2.35cts.

2.35ct Oval Blue Green Opal

A loose blue green opal, the solid oval opal weighing 2.35cts.

Four unset opals a small oval cut Andamooka opal. Weight: 1.…

Andamooka Opals with Good Play of Colour (4)

Four unset opals a small oval cut Andamooka opal. Weight: 1.59ct. A large triangle cut Andamooka opal. Weight: 4.79ct. A large oval Andamooka opal. Weight: 4.92ct. A small triangle cut Andamooka opal. Weight: 2.16ct. All have good play of colour.(4)

Boulder opal, fine solid natural boulder opal, oval shape

Fine Boulder Opal Oval

Boulder opal, fine solid natural boulder opal, oval shape

Unset 47.34ct boulder opal, freeform plaque 46.02 x 20.46 x 5.…

47.34ct Boulder Opal Freeform Plaque - Blue and Green

Unset 47.34ct boulder opal, freeform plaque 46.02 x 20.46 x 5.96 mm, mostly blue and green colours.

Twenty four loose opals twenty four solid black opals, oval and…

27ct Black Opals: 24 Loose, 24 Solid, 1 Freeform

Twenty four loose opals twenty four solid black opals, oval and one free formed in shape, approximately 27ct, blue, red in colour

A unset 1.17ct light black opal; oval cabochon solid opal with…

1.17ct Oval Light Black Opal with Red Flash

A unset 1.17ct light black opal; oval cabochon solid opal with good red flash, size 9.35 x 7.60 mm.

An oval shaped loose opal one solid black opal, 4.76ct, black…

4.76ct Black Opal with Green Hues - Oval Shape

An oval shaped loose opal one solid black opal, 4.76ct, black with green colour

Semi dark crystal Coober Pedy opal having a medium checker…

Checker Plate Opal: Vibrant Play of Color

Semi dark crystal Coober Pedy opal having a medium checker plate pattern with good play of colour. Strong reds, greens, orange and blue colours Seen. Weight 4.23ct. 14.2 x 10.4 mm.

A loose 1.63ct solid black opal one solid black opal, oval in…

1.63ct Oval Black Opal with Red Green Colors

A loose 1.63ct solid black opal one solid black opal, oval in shape, 1.63ct, black with red green colour

Two unset Australian opals; each a solid oval cabochon with…

Unset Australian Opals with Good Play of Color

Two unset Australian opals; each a solid oval cabochon with grey body and good play of colour including. Red, sizes 16.04 x 7.90 x 288 mm, and 12.98 x 10.55 x 3.23 mm, total wt. 5.08ct.

Loose opals six boulder opal, free formed in shape,…

48ct Free-Formed Boulder Opals in Blue, Green & Red

Loose opals six boulder opal, free formed in shape, approximately 48ct, blue, green and red in colour

A loose oval Lightning Ridge black opal

Radiant Oval: Lightning Ridge Black Opal

A loose oval Lightning Ridge black opal

Unset 4.99ct Australian polished solid opal

Stunning 4.99ct Australian Opal - Polished and Solid

Unset 4.99ct Australian polished solid opal

An unset opal gemstone, pear cut, 3.74cts. With AIG report…

3.74ct Pear Opal with Play of Color - AIG Certified

An unset opal gemstone, pear cut, 3.74cts. With AIG report stating, 'white with play of colour'.

Unset 3.35ct Australian polished sold opal

3.35ct Australian Polished Opal for Sale

Unset 3.35ct Australian polished sold opal

An unset solid white opal measures 14.5 x 13 mm approximately

Large Unset Solid White Opal - 14.5 x 13mm

An unset solid white opal measures 14.5 x 13 mm approximately

Three gold rings; one in 14ct with an abraded opal (4.3g,…

Gold Rings with Opal, Nephrite, and Unset Mount

Three gold rings; one in 14ct with an abraded opal (4.3g, stamped 18k), one in 18ct set with nephrite (6.5g) and a 9ct unset mount (3.5g)

A loose 1.015ct solid black opal oval in shape, 1.015ct, black…

1.015ct Loose Black Opal with Red Color Oval Shape

A loose 1.015ct solid black opal oval in shape, 1.015ct, black with red colour

An unset opal gemstone, pear cut, 4.04cts. With AIG report…

Playful Black Opal: 4.04ct Pear Cut Gemstone

An unset opal gemstone, pear cut, 4.04cts. With AIG report stating, 'black with play of colour'.

An unset 12.50ct opal, oval cabochon Ethiopian opal, 21.05 x 13.…

12.50ct Oval Ethiopian Opal Cabochon - Unset

An unset 12.50ct opal, oval cabochon Ethiopian opal, 21.05 x 13.54 x 9.73 mm.

A loose opal, the rectangular shaped solid opal weighing 6.…

6.48ct Rectangular Opal Loose Gemstone

A loose opal, the rectangular shaped solid opal weighing 6.48cts.

A natural opal loose gemstone, pear cabochon cut, 7.07ct. With…

7.07ct Pear Opal Cabochon with Play of Color

A natural opal loose gemstone, pear cabochon cut, 7.07ct. With AIG report noting 'White with play of Color'.

Three loose white opals, Presented as three oval cabochon cut…

Triplet of Spectral Opals

Three loose white opals, Presented as three oval cabochon cut loose Australian white opals, one measuring 11.45 x 9.4 mm with strong red spectral colours, the second measuring 11.6 x 9.8 mm with strong green and blue spectral colours and the final…

A loose opal one solid white opal, 9.98ct, oval in shape, white…

10ct Oval White Opal with Green and Red Hues

A loose opal one solid white opal, 9.98ct, oval in shape, white with green red colour

Two loose 1.67ct solid black opals oval in shape, 1.67ct in…

Pair of 1.67ct Solid Black Opal Ovals - Blue Red

Two loose 1.67ct solid black opals oval in shape, 1.67ct in total, blue red colour

A natural opal cabochon loose gemstone, 8.06ct. Oval form. With…

8.06ct Oval Black Opal with Play of Color

A natural opal cabochon loose gemstone, 8.06ct. Oval form. With AIG report noting 'Black with Play of Color'.

Three loose opals includes, 1@ oval cut cabochon fire opal 12.…

3 Loose Opals: Fire and Black

Three loose opals includes, 1@ oval cut cabochon fire opal 12.18 mm x 7.75 mm x 5.1 mm (2.50ct), 2@ black opals 0.90ct-0.85ct

Fourteen unset opals, solid black, white and crystal opals…

32ct Mixed Opal Lot: Black, White, and Crystal

Fourteen unset opals, solid black, white and crystal opals totalling 32.32ct.

A loose solid black opal, oval in shape, 5.22ct, black with…

5.22ct Oval Black Opal with Green-Red Color

A loose solid black opal, oval in shape, 5.22ct, black with green red colour

Two loose 1.73ct solid black opals triangular in shape, 1.73ct…

Pair of Triangular Black Opals, 1.73ct Total Weight

Two loose 1.73ct solid black opals triangular in shape, 1.73ct in total, blue with red green colour

Two loose solid black opals oval in shape, 1.04ct in total,…

Black Opal Pair: 1.04ct Oval Red Green Colors

Two loose solid black opals oval in shape, 1.04ct in total, black with red green colour

Unset 7.42ct Australian polished sold opal

7.42ct Australian Opal - Sold!

Unset 7.42ct Australian polished sold opal

A loose opal one solid white opal, rectangle in shape, 15.12ct,…

15ct Rectangle Opal with Red and Green Hues

A loose opal one solid white opal, rectangle in shape, 15.12ct, white with red green colour

Three loose white opals, each of different size and shape,…

Assorted Spectral Opals in Various Shapes and Sizes

Three loose white opals, each of different size and shape, presenting as a small square shaped, cabochon cut solid measuring 9.3 x 9.5 mm, the second a large wide oval shaped, cabochon measuring 24 x 18 mm and finally a marquise shaped cabochon measuring,…

Three unset Australian solid black opals

Unset Black Opals from Australia

Three unset Australian solid black opals

Two good colour solid unset white opals approx 2 grams

Pair of 2g Unset White Opals - Stunning Colors!

Two good colour solid unset white opals approx 2 grams

Two unset opals, 1.98ct solid crystal opal with dark body tone…

Unset Opals: 1.98ct and 3.39ct with Stunning Play of Colour

Two unset opals, 1.98ct solid crystal opal with dark body tone and good play of colour, size 11.34 x 9.18 mm and a 3.39ct solid crystal opal with white body tone with mostly violet and green colours, size 13.24 x 9.19 mm.

A loose solid 0.89ct black opal oval in shape, 0.89ct, black…

0.89ct Black Opal Oval with Green and Red Hues

A loose solid 0.89ct black opal oval in shape, 0.89ct, black with green red colour

Loose opal 15 mm x 8 mm showing blues, reds / orange, and green…

Colorful Loose Opal - 2.90ct

Loose opal 15 mm x 8 mm showing blues, reds / orange, and green colours. Approx dimensions 15.10 mm x 8.65 mm x 4.00 mm depth 2.90ct calculated

Two loose opals, 25.06×17.67×59 mm and 9.85×8.43 x 3 mm

Two Loose Opals: Varying Sizes for Unique Jewelry Making

Two loose opals, 25.06×17.67×59 mm and 9.85×8.43 x 3 mm

Three loose opals, 2.65ct 13 x 8 mm dark solid, strong play of…

Three Loose Opals with Strong Play of Colour

Three loose opals, 2.65ct 13 x 8 mm dark solid, strong play of colour, 1.05ct 9 x 7 mm dark solid, 1.00ct 9 x 6.8 mm, crystal

Loose solid black opal, 4.10ct

4.10ct Loose Black Opal - Stunning Solid Gemstone

Loose solid black opal, 4.10ct

Three unset boulder opals; solid free from (11.59 x 7.55 x 3.38…

Unset Boulder Opals, 7.68ct Total Weight

Three unset boulder opals; solid free from (11.59 x 7.55 x 3.38 mm), oval (15.22 x 7.37 x 4.75 mm, crack), and round (7.39 x 3.35 mm), total wt. 7.68ct.

Opal: one loose solid black opal. 8.06 carats.

8.06 Carat Solid Black Opal for Sale

Opal: one loose solid black opal. 8.06 carats.

A loose solid black opal oval in shape, 2.17ct, blue green in…

2.17ct Loose Black Opal: Stunning Blue Green Hue

A loose solid black opal oval in shape, 2.17ct, blue green in colour

Two loose 1.11ct solid black opals oval in shape, 1.11ct in…

Pair of 1.11ct Solid Black Opals with Red Hue

Two loose 1.11ct solid black opals oval in shape, 1.11ct in total, black with red colour

Freeform loose solid natural Boulder opal, approx: 9.8 carats

9.8ct Freeform Natural Boulder Opal

Freeform loose solid natural Boulder opal, approx: 9.8 carats

Loose polished crystal opal, 3.5ct

Polished Crystal Opal - 3.5ct

Loose polished crystal opal, 3.5ct

Loose polished crystal opal, 3.75ct

Polished Crystal Opal - 3.75ct Loose Stone

Loose polished crystal opal, 3.75ct

A loose semi black opal, oval cabochon shape 13.9 mm x 12.3 mm…

5.2ct Loose Semi Black Opal Cabochon - Oval Shape

A loose semi black opal, oval cabochon shape 13.9 mm x 12.3 mm x 5.3 mm, 5.2ct weight

Three unset Australian opals; solid oval cabochons with grey…

Set of Three Unset Australian Opals, 5.70ct Total Weight

Three unset Australian opals; solid oval cabochons with grey body and good play of colour, sizes 14.45 x 8.49 x 3.80 mm, 10.50 x 8.53 x 2.38 mm, and 9.09 x 6.18 x 4.28 mm (cracks), total wt. 5.70ct.

Loose solid white opal dimensions 21 mm x 24 mm x 5.6 mm, 17.3ct

Solid White Opal: 17.3ct, 21x24x5.6mm

Loose solid white opal dimensions 21 mm x 24 mm x 5.6 mm, 17.3ct

Loose opals three solid crystal opal, pear shaped, 1 x 2.20ct,…

3 Stunning Crystal Opals - Blue and Red Hues

Loose opals three solid crystal opal, pear shaped, 1 x 2.20ct, 2x 1.07ct, white with blue red colour

Loose opals two solid white opals, oval in shape, 1.50ct, 1.…

White Oval Opals with Green Hue - 1.50ct & 1.65ct

Loose opals two solid white opals, oval in shape, 1.50ct, 1.65ct, white with green colour

A loose opal one oval crystal opal, oval in shape, 5.80ct,…

5.80ct Oval Crystal Opal with Green & Red Hues

A loose opal one oval crystal opal, oval in shape, 5.80ct, white with green red colour

Two loose 4.10ct solid black opals oval in shape, 4.10ct, blue…

Pair of 4.10ct Oval Black Opals with Blue-Red Hues

Two loose 4.10ct solid black opals oval in shape, 4.10ct, blue with red colour

A loose 7.99ct solid white opal one solid white opal,…

7.99ct Triangular White Opal with Green & Red Colors

A loose 7.99ct solid white opal one solid white opal, triangular in shape, 7.99ct white with green red colour

Unset pear shaped solid opal

Unset Opal: Perfect for Custom Jewelry

Unset pear shaped solid opal

A loose triangular shaped opal one solid white opal, 2.95ct,…

Triangular 2.95ct Opal with Green and Red Colors

A loose triangular shaped opal one solid white opal, 2.95ct, white with green and red colour

Twenty-one loose oval and pear shaped white opals, all solid…

Varied White Opals with Spectral Colors

Twenty-one loose oval and pear shaped white opals, all solid white opals, varied in intensity of spectral colours, some of crystal type with stronger colours

Loose opals four solid crystal opals, oval in shape, 3.67ct, 4.…

Blue Crystal Opals: 11ct to 3.67ct Loose Stones

Loose opals four solid crystal opals, oval in shape, 3.67ct, 4.26ct, 8.48ct, 11ct, with blue colour

Loose opals two solid white opals, carved into a oval shape, 9.…

White Opals: Oval & Flower Carvings, 13.50ct Total Weight

Loose opals two solid white opals, carved into a oval shape, 9.30ct and a flower, 4.20ct, white with green and red colour

25 unmounted milk opals large sizes and mixed shaped

Mixed Large Milk Opals in Various Shapes

25 unmounted milk opals large sizes and mixed shaped

Loose white solid opal polygon form. Showing full spectrum of…

Full Spectrum Opal Polygon - 20.3 cm

Loose white solid opal polygon form. Showing full spectrum of colours, size 20.3 cm longest edge, 13.mm widest point, 2.7 cm thick

Eight unset pear-shaped Australian opals

Australian Opal Set: 8 Pear-Shaped Beauties

Eight unset pear-shaped Australian opals

Two loose black and white solid opals dimensions black 10.5 mm…

7.05ct Black and White Solid Opals

Two loose black and white solid opals dimensions black 10.5 mm x 16.88 mm x 4.7 mm & white 12.5 mm x 7.1 mm x 3.58 mm. Weight 7.05ct

A loose solid black opal free form with blues, greens and some…

Stunning Australian Black Opal with Vibrant Colors

A loose solid black opal free form with blues, greens and some flashes of purple and orange Approx length 19.6 mm x 11 mm of Australian type

Box of 12 loose marquise shape opals

12 Loose Marquise Opals

Box of 12 loose marquise shape opals

An unset boulder opal, good colour range, wt. 6.07ct, (18 x 13…

Vibrant 6.07ct Unset Boulder Opal - 18x13mm

An unset boulder opal, good colour range, wt. 6.07ct, (18 x 13 mm).

Loose opals two solid white opals, long pear shaped, 7.57ct in…

7.57ct White Opals with Green and Red Hues

Loose opals two solid white opals, long pear shaped, 7.57ct in total, white with green red colour