Results in Loose Black Opals

1-25 of 2,080

  • 37.6CT Natural Canadian Ammonite Ammolite Fossil Cab Ready For Setting

    This kind of Ammolite is from Canada. Ammolite is a valuable opal-like organic gemstone. It is an ancient fossil and is the world's oldest and rarest gem. Each ammolite has unique color and pattern.
    £79.99
    Click & Collect
    Free postage
  • 95CT 100% Natural Australian Black Boulder Opal Cab Specimen

    100% Natural Black Boulder Opal with Great Fire, from Australia, Very Good Quality,Stunning and Amazing. 100% Natural BlackBoulder Opal. Gem Type. Hand Picked Gemstone and Mineral Pieces from around the Globe.We have a wide range of high quality pieces that are ready to be made into Jewellery or to be added to your collection.
    £79.99
    Click & Collect
    Free postage
  • BOULDER OPAL-18CT GOLD- DIAMOND- Natural black boulder opal .

    Stunning natural black boulder opal pendant. 18ct hallmarked gold hand made mount. Set with quality brilliant cut diamond. Hand made bespoke one off item-a real showstopper!! Boxed and with valuation certificate.
    £295.00
    £6.90 postage
  • OPAL [BLACK] WITH OPALESCENT COLOUR PLAY NATURAL MINED 2.78Ct MF5035

    DARK OPALESCENT COLOUR PLAY. NATURAL MINED UNTREATED SPECIMEN. STONE : OPAL. INCLUDES MY MINERAL COLLECTION IDENTIFICATION DOCKET MF5035.
    £45.00
    Click & Collect
    Free postage
  • #49 Loose Stone Australian Natural Solid Black Opal Stone For Pendant & Ring

    Black opal is the most valuable type of opal and it is predominantly found in Lightning Ridge. It is called black opal due to the dark body tone of the gem. This dark body tone appears because the natural backing or tint of the stone is dark grey or black common potch (opal without colour).
    £19.31
    From Australia
    Was: Previous price£21.46
    or Best Offer
    £3.52 postage
  • Lightning Ridge Black Opal 1.09Ct Australian Natural Red Multi Colour Stone

    A free form Lightning Ridge Black Opal Stone on dark grey base with Red,Green, Blue, orange swirling flashes of colour has some potch in the undulating carved surface. Black Opal refers to the underlying colour – the colour of the opal when you turn it over.
    £76.02
    From Australia
    Was: Previous price£89.44
    £11.93 postage
    16 watching
  • 1.66 ct PGTL Certified Oval Cabochon (12 x 9 mm) Flashing Multicolor Black Opal

    Certified by PGTL Precious Gem Testing Laboratory - PGTL. 1.66 ct PGTL Certified Topnotch Oval Cabochon Cut (12 x 9 mm) Flashing 360 Degree Multicolor Black Opal. FREE PGTL Certificate 100% Mined from Earth Stone Orgin from Ethiopia.
    £47.37
    From United States
    or Best Offer
    Free postage
  • 1.69Cts STUNNING!! - NATURAL MULTI COLOR FLASHING GEM - AMAZING BLACK OPAL YR355

    WORLD CLASS AMAZING NATURAL - MULTI COLORS FLASHING - BLACK OPAL. 100% Natural Earth mined Gemstone! Huge Beautiful Gemstone For Gem Collector's! Don't Miss It! An Absolute Museum Grade Gem.
    £23.99
    From Thailand
    Free postage
  • Lightning Ridge Black Opal 4.62Ct Australian Natural Stone

    A Free form oval black opal from Lightning ridge on a dark base with a one way rolling flash of dark Blue/Purple some other small flashes in the stone on a clean black potch base. Black Opal refers to the underlying colour – the colour of the opal when you turn it over.
    £76.02
    From Australia
    Was: Previous price£89.44
    £11.93 postage
  • 40.2CT Australian Queensland Black Matrix Concrete Opal Slice Specimen

    Natural Black Concrete Matrix Opal. Our natural concrete black matrix opal is from Australia. They have great fire, very good quality, They have been polished as pictures.They are great facet rough, stunning and amazing.
    £89.99
    Click & Collect
    Free postage
  • Lightning Ridge Crystal Black Opal 5.53Ct Australian Natural Stone

    A free form crystal opal from Lightning ridge on a partial cover medium grey base has green blue orange crystal colour with small potch spot in the face tapered to one side some sand in the base. Black Opal refers to the underlying colour – the colour of the opal when you turn it over.
    £76.02
    From Australia
    Was: Previous price£89.44
    £11.93 postage
  • #52 Loose Stone Australian Natural Solid Black Opal Stone For Pendant & Ring

    Black opal is the most valuable type of opal and it is predominantly found in Lightning Ridge. It is called black opal due to the dark body tone of the gem. This dark body tone appears because the natural backing or tint of the stone is dark grey or black common potch (opal without colour).
    £21.46
    From Australia
    Was: Previous price£23.84
    or Best Offer
    £3.52 postage
  • TWO LIGHTNING RIDGE BLACK OPALS WITH GREAT COLOR FLASH .70 CTTW (SEE VIDEO)

    .31 and. 39 carats . 70cttw. Indeed, it is utterly impossible to capture the true beauty of the opal. The seductive change in color and pattern that can be only seen by moving the stones in different light conditions, is only for the eye of the beholder.
    £21.31
    From United States
    Was: Previous price£23.68
    £10.66 postage
  • Lightning Ridge Black Opal 1.02Ct Australian Natural Stone

    A Free form oval black opal from Lightning ridge on a dark base with bright Blue Green Flashes the stone has a carved undulating surface with a number of very small sand spots a ring or pendant stone has some sand and unpolished potch in base.
    £38.01
    From Australia
    Was: Previous price£44.72
    £11.93 postage
  • 72.85 CARATS OF SOLID GEM QUALITY LIGHTNING RIDGE RUBBED OPAL PARCEL

    This gem quality solid rubbed opal parcel from Lightning Ridge weighs in total 72.85 carats. This parcel is suitable for cutting solid stones.
    £858.63
    From Australia
    or Best Offer
    Free postage
  • C24 Natural Solid Black Opal Stone For Pendant & Ring Grade A+

    Black opal is the most valuable type of opal and it is predominantly found in Lightning Ridge. It is called black opal due to the dark body tone of the gem. This dark body tone appears because the natural backing or tint of the stone is dark grey or black common potch (opal without colour).
    £150.25
    From Australia
    Was: Previous price£166.95
    or Best Offer
    £3.52 postage
  • Lightning Ridge Black Opal 1.16Ct Australian Natural Stone

    A free form oval black opal from Lightning ridge on a dark grey base this stone is a seam opal with swirls for pinks and oranges that blend in colour with the dark grey potch and gives a constant colour.
    £32.94
    From Australia
    Was: Previous price£38.76
    £4.17 postage
  • Lightning Ridge Black Opal 1.61ct Australian Natural Multi Colour Stone

    A Black Opal dark base blue green stone with small pinfire red in the centre of the stone sand spot in the side and small spot in the face of the stone some potch in the surface. Black Opal refers to the underlying colour – the colour of the opal when you turn it over.
    £32.94
    From Australia
    Was: Previous price£38.76
    £11.93 postage
  • Lightning Ridge Black Opal 1.61Ct Australian Natural Stone

    A Free form shape black seam opal from Lightning ridge on a dark greybackground multi colour mixed flashes orange gold blue green with some potch through the surface. Black Opal refers to the underlying colour – the colour of the opal when you turn it over.
    £30.41
    From Australia
    Was: Previous price£35.78
    £4.17 postage
  • #47 Australian Natural Solid Black Opal Stone For Pendant & Ring & Earring

    Black opal is the most valuable type of opal and it is predominantly found in Lightning Ridge. It is called black opal due to the dark body tone of the gem. This dark body tone appears because the natural backing or tint of the stone is dark grey or black common potch (opal without colour).
    £21.46
    From Australia
    Was: Previous price£23.84
    or Best Offer
    £3.52 postage
    10 watching
  • #48 Australian Natural Solid Black Opal Stone For Pendant & Ring & Earring

    Black opal is the most valuable type of opal and it is predominantly found in Lightning Ridge. It is called black opal due to the dark body tone of the gem. This dark body tone appears because the natural backing or tint of the stone is dark grey or black common potch (opal without colour).
    £21.46
    From Australia
    Was: Previous price£23.84
    or Best Offer
    £3.52 postage
  • Gorgeous 0.58ct 7mm Round Cab Black Opal w/ Great Color Play!!!

    Fire opal can sometimes exhibit slight color play, but it is better known for its vivid body color. Common opal is usually opaque, rarely translucent, and lacks play of color. It is often found mixed with other gemstones, such as agate opal or moss opal.
    £19.70
    From United States
    £10.66 postage
  • 79.60 CARATS OF SOLID GEM QUALITY LIGHTNING RIDGE RUBBED OPAL PARCEL

    This gem quality solid rubbed opal parcel from Lightning Ridge weighs in total 79.60 carats. This parcel is suitable for cutting solid stones.
    £1,639.75
    From Australia
    or Best Offer
    Free postage
  • Lightning Ridge Black Opal 1.27Ct Australian Natural Stone

    A free form Black opal from Lightning ridge on a dark base bright flashes of Blue and solid blue background colour potch mark in the surface. Black Opal refers to the underlying colour – the colour of the opal when you turn it over.
    £25.34
    From Australia
    Was: Previous price£29.81
    £4.17 postage

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