Results in Cabochon Loose Black Opals

1-25 of 102

  • OPAL Red on black and grey Lightning Ridge Art Stone freeform 3.5ct

    OPAL Red on black and grey Lightning Ridge Art Stone freeform 3.5ct

    This is an unusual Lightning Ridge Opal with red and pink on black and grey opal potch. There is also a touch of green and other colours. The opal has been cut into this freeform shape to take advantage of the colours combined with the potch to create this unique "Art Stone". Art stones are when the opal cutter cuts the non valuable opal potch colours intertwined with the opal to create unusual colour combinations such as seen in this stone. The opal weighs 0.7gms or 3.5cts. Its overall maximum dimensions are 19.3mm x 8.6mm x 3.2mm. The Art Stone can be left as a unique specimen or set into an eye catching pendant or ring. The opal has been photographed with a US one cent coin to show perspective and the coin is not included in sale.
    AU $55.00
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  • 1.38 ct Incomparable Cabochon Cut (9 x 7 mm) Flashing Multicolor Black Opal

    1.38 ct Incomparable Cabochon Cut (9 x 7 mm) Flashing Multicolor Black Opal

    Mohs Hardness - 5.5-6.5 Found in - Australia, Austria, Honduras, Brazil, Mexico, Zimbabwe, Ethiopia and the USA. History - Opal is a semi-transparent solidified mineral composed of silicon and water.
    AU $28.39
    From United States
    Was: Previous priceAU $33.40
    Available for Best Offeror Best Offer
    Free postage
  • 2.43ct DRAGON FIRE! Effect Multi Color Flash Solid Black Opal

    2.43ct DRAGON FIRE! Effect Multi Color Flash Solid Black Opal

    Multi Color Flash Solid Black Opal. Luster Top Multi Color Luster. 2.43ct Dragon Fire Effect 3D Pattern. Color Multi Color. Item Name Natural Opal. Quantity 1 Piece. Shape Cabochon. Clarity Opaque.
    AU $13.19
    0 bids
    AU $6.67 postage
    Ending Friday at 19:30 AEDST
    From India
  • 37ct Extremely rare Solid Black picture Opal Mintabie *New Video*

    37ct Extremely rare Solid Black picture Opal Mintabie *New Video*

    Extremely rare and much sort after solid picture opal with a pin-fire pattern from Mintabie, South Australia. This stone displays a magnificent Red/Blue and Blue/Green pinfire patterns to form a stunning celestial night time picture.
    AU $5,000.00
    0 bids
    Free postage
    Ending 11 Dec at 17:55 AEDST
  • Natural Opal Dark 4.25cts 13.5 x 11.5 x 4.8mm Cabochon Blue Green Fire UNTREATED

    Natural Opal Dark 4.25cts 13.5 x 11.5 x 4.8mm Cabochon Blue Green Fire UNTREATED

    This 4.25ct Opal is surely breathtaking. With its cool water tone fire changing its pattern according to light source, no matter what kind of jewellery it is set in, it will never fail to impress. Natural Dark Opal (Untreated).
    AU $1,396.50
    Was: Previous priceAU $1,995.00
    Available for Best Offeror Best Offer
    AU $12.95 postage
  • 2.53ct Museum Grade! Extraordinery! TOP GRADE Rainbow Flash Black Opal

    2.53ct Museum Grade! Extraordinery! TOP GRADE Rainbow Flash Black Opal

    2.53ct Museum Grade! TOP GRADE Rainbow Flash Black Opal. Luster Top Multi Color Luster. Item Name Natural Black Opal. Size 11.9 x 8.3 x 5.8 MM. Inclusion Very Slightly Inclusion Slightly Inclusion Open Inclusion.
    AU $13.49
    0 bids
    AU $6.67 postage
    Ending 11 Dec at 10:20 AEDST
    From India
  • Black Opal, Mintabie, 1.6 carat, crystal, harlequin, pinfire back, multicolour

    Black Opal, Mintabie, 1.6 carat, crystal, harlequin, pinfire back, multicolour

    This stunning and unusual gemstone comes from Mintabie and is of quality, strong material. Double sided, this black opal features a multicoloured harlequin pattern on a black crystal base and on the back there is a lively pinfire pattern.
    AU $128.00
    Available for Best Offeror Best Offer
    Free postage
  • 0.58 ct Astonishing Round Cabochon Cut (6 x 6 mm) Flashing Multicolor Black Opal

    0.58 ct Astonishing Round Cabochon Cut (6 x 6 mm) Flashing Multicolor Black Opal

    Shape Round Cabochon. Mohs Hardness - 5.5-6.5 Found in - Australia, Austria, Honduras, Brazil, Mexico, Zimbabwe, Ethiopia and the USA. History - Opal is a semi-transparent solidified mineral composed of silicon and water.
    AU $17.03
    From United States
    Was: Previous priceAU $20.04
    Available for Best Offeror Best Offer
    Free postage
  • 1.34 ct Tremendous Cabochon Cut (10 x 7 mm) Flashing Multicolor Black Opal

    1.34 ct Tremendous Cabochon Cut (10 x 7 mm) Flashing Multicolor Black Opal

    Mohs Hardness - 5.5-6.5 Found in - Australia, Austria, Honduras, Brazil, Mexico, Zimbabwe, Ethiopia and the USA. History - Opal is a semi-transparent solidified mineral composed of silicon and water.
    AU $28.39
    From United States
    Was: Previous priceAU $33.40
    Available for Best Offeror Best Offer
    Free postage
  • Black Crystal Opal, 1.02 carat, Lightning Ridge, freeform cabochon

    Black Crystal Opal, 1.02 carat, Lightning Ridge, freeform cabochon

    Semi Black/Crystal from Lightning Ridge. 1.02 carat, 10.5mm(L) x 8mm(W) x 2mm (D). Light Blue/Green with some Purple, flash meets pinfire. All our photography is done with a composition of natural light and a small led desk lamp.
    AU $61.00
    Available for Best Offeror Best Offer
    AU $4.25 postage
  • Black Opal, 1.1 carat, Lightning Ridge, freeform cabochon

    Black Opal, 1.1 carat, Lightning Ridge, freeform cabochon

    More from Lightning Ridge. Semi Black and 1.1 carat. The stunning bar shown in this tone bears a floral pattern in light blue, light green and purple on a semi-black potch base. Dimensions in millimeters are: 9.5 x 8 x 2.5.
    AU $64.00
    Available for Best Offeror Best Offer
    AU $4.25 postage
  • Opal, dark black opal,9.9 mm Round cabochon, 2.8 ct,

    Opal, dark black opal,9.9 mm Round cabochon, 2.8 ct,

    Beautiful Aussie Opal that displays multi- colour flash in a black Opal brightening under light. This Opal weighs 2.8 ct of Natural Opal that is an attractive black base with nice small flashes colour as can be displayed in the photos.
    AU $35.00
    eBay Premium Service
    Available for Best Offeror Best Offer
    Free postage
  • 0.72 ct Romantic Oval Cabochon Cut (8 x 5 mm) Flashing Multicolor Black Opal

    0.72 ct Romantic Oval Cabochon Cut (8 x 5 mm) Flashing Multicolor Black Opal

    Mohs Hardness - 5.5-6.5 Found in - Australia, Austria, Honduras, Brazil, Mexico, Zimbabwe, Ethiopia and the USA. History - Opal is a semi-transparent solidified mineral composed of silicon and water.
    AU $17.03
    From United States
    Was: Previous priceAU $20.04
    Available for Best Offeror Best Offer
    Free postage
  • 0.59 ct Topnotch Oval Cabochon Cut (8 x 6 mm) Flashing Multicolor Black Opal

    0.59 ct Topnotch Oval Cabochon Cut (8 x 6 mm) Flashing Multicolor Black Opal

    Mohs Hardness - 5.5-6.5 Found in - Australia, Austria, Honduras, Brazil, Mexico, Zimbabwe, Ethiopia and the USA. History - Opal is a semi-transparent solidified mineral composed of silicon and water.
    AU $17.03
    From United States
    Was: Previous priceAU $20.04
    Available for Best Offeror Best Offer
    Free postage
  • 1.13 ct Splendid Cabochon Cut (8 x 6 mm) Flashing Multicolor Black Opal

    1.13 ct Splendid Cabochon Cut (8 x 6 mm) Flashing Multicolor Black Opal

    Mohs Hardness - 5.5-6.5 Found in - Australia, Austria, Honduras, Brazil, Mexico, Zimbabwe, Ethiopia and the USA. History - Opal is a semi-transparent solidified mineral composed of silicon and water.
    AU $17.03
    From United States
    Was: Previous priceAU $20.04
    Available for Best Offeror Best Offer
    Free postage
  • 0.73 ct Outstanding Oval Cabochon Cut (8 x 6 mm) Flashing Multicolor Black Opal

    0.73 ct Outstanding Oval Cabochon Cut (8 x 6 mm) Flashing Multicolor Black Opal

    Mohs Hardness - 5.5-6.5 Found in - Australia, Austria, Honduras, Brazil, Mexico, Zimbabwe, Ethiopia and the USA. History - Opal is a semi-transparent solidified mineral composed of silicon and water.
    AU $17.03
    From United States
    Was: Previous priceAU $20.04
    Available for Best Offeror Best Offer
    Free postage
  • 2.21ct WORLD CLASS! MUSEUM GRADE! 360 Rainbow Flash Black Opal

    2.21ct WORLD CLASS! MUSEUM GRADE! 360 Rainbow Flash Black Opal

    2.21ct WORLD CLASS! MUSEUM GRADE! 360 Rainbow Flash Black Opal. Item Name Natural Black Opal. Luster Top Multi Color Luster. Size 14.4 x 7.3 x 4.0 MM. Inclusion Very Slightly Inclusion Slightly Inclusion Open Inclusion.
    AU $20.95
    0 bids
    AU $6.67 postage
    Ending 13 Dec at 10:45 AEDST
    From India
  • 0.86 ct Stunning Pear Cabochon Cut (10 x 6 mm) Flashing Multicolor Black Opal

    0.86 ct Stunning Pear Cabochon Cut (10 x 6 mm) Flashing Multicolor Black Opal

    Mohs Hardness - 5.5-6.5 Found in - Australia, Austria, Honduras, Brazil, Mexico, Zimbabwe, Ethiopia and the USA. History - Opal is a semi-transparent solidified mineral composed of silicon and water.
    AU $17.03
    From United States
    Was: Previous priceAU $20.04
    Available for Best Offeror Best Offer
    Free postage
  • 1.09 ct Premium Cabochon Cut (9 x 6 mm) Flashing Multicolor Black Opal

    1.09 ct Premium Cabochon Cut (9 x 6 mm) Flashing Multicolor Black Opal

    Mohs Hardness - 5.5-6.5 Found in - Australia, Austria, Honduras, Brazil, Mexico, Zimbabwe, Ethiopia and the USA. History - Opal is a semi-transparent solidified mineral composed of silicon and water.
    AU $17.03
    From United States
    Was: Previous priceAU $20.04
    Available for Best Offeror Best Offer
    Free postage
  • 0.57 ct Superior Pear Cabochon Cut (8 x 6 mm) Flashing Multicolor Black Opal

    0.57 ct Superior Pear Cabochon Cut (8 x 6 mm) Flashing Multicolor Black Opal

    Mohs Hardness - 5.5-6.5 Found in - Australia, Austria, Honduras, Brazil, Mexico, Zimbabwe, Ethiopia and the USA. History - Opal is a semi-transparent solidified mineral composed of silicon and water.
    AU $17.03
    From United States
    Was: Previous priceAU $20.04
    Available for Best Offeror Best Offer
    Free postage
  • 0.52 ct Resplendent Pear Cabochon Cut (8 x 6 mm) Flashing Multicolor Black Opal

    0.52 ct Resplendent Pear Cabochon Cut (8 x 6 mm) Flashing Multicolor Black Opal

    Mohs Hardness - 5.5-6.5 Found in - Australia, Austria, Honduras, Brazil, Mexico, Zimbabwe, Ethiopia and the USA. History - Opal is a semi-transparent solidified mineral composed of silicon and water.
    AU $17.03
    From United States
    Was: Previous priceAU $20.04
    Available for Best Offeror Best Offer
    Free postage
  • 0.95 ct Mesmerizing Pear Cabochon Cut (8 x 6 mm) Flashing Multicolor Black Opal

    0.95 ct Mesmerizing Pear Cabochon Cut (8 x 6 mm) Flashing Multicolor Black Opal

    Mohs Hardness - 5.5-6.5 Found in - Australia, Austria, Honduras, Brazil, Mexico, Zimbabwe, Ethiopia and the USA. History - Opal is a semi-transparent solidified mineral composed of silicon and water.
    AU $17.03
    From United States
    Was: Previous priceAU $20.04
    Available for Best Offeror Best Offer
    Free postage
  • 0.58 ct Best Pear Cabochon Cut (8 x 5 mm) Flashing Multicolor Black Opal

    0.58 ct Best Pear Cabochon Cut (8 x 5 mm) Flashing Multicolor Black Opal

    Mohs Hardness - 5.5-6.5 Found in - Australia, Austria, Honduras, Brazil, Mexico, Zimbabwe, Ethiopia and the USA. History - Opal is a semi-transparent solidified mineral composed of silicon and water.
    AU $17.03
    From United States
    Was: Previous priceAU $20.04
    Available for Best Offeror Best Offer
    Free postage
  • 0.44 ct Mesmerizing Pear Cabochon Cut (8 x 5 mm) Flashing Multicolor Black Opal

    0.44 ct Mesmerizing Pear Cabochon Cut (8 x 5 mm) Flashing Multicolor Black Opal

    Mohs Hardness - 5.5-6.5 Found in - Australia, Austria, Honduras, Brazil, Mexico, Zimbabwe, Ethiopia and the USA. History - Opal is a semi-transparent solidified mineral composed of silicon and water.
    AU $17.03
    From United States
    Was: Previous priceAU $20.04
    Available for Best Offeror Best Offer
    Free postage
  • 1.07 ct Spectacular Cabochon Cut (10 x 6 mm) Flashing Multicolor Black Opal

    1.07 ct Spectacular Cabochon Cut (10 x 6 mm) Flashing Multicolor Black Opal

    Mined From Earth! Cabochon Black Color Natural Stone. Shape Cabochon. Mohs Hardness - 5.5-6.5 Found in - Australia, Austria, Honduras, Brazil, Mexico, Zimbabwe, Ethiopia and the USA. History - Opal is a semi-transparent solidified mineral composed of silicon and water.
    AU $17.03
    From United States
    Was: Previous priceAU $20.04
    Available for Best Offeror Best Offer
    Free postage

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