Results in Loose Onyx Gemstones

1-25 of 3,904

  • UNUSUAL 14x10mm OVAL CABOCHON-CUT NATURAL AFRICAN DEEP-BLUE ONYX GEMSTONE

    UNUSUAL 14x10mm OVAL CABOCHON-CUT NATURAL AFRICAN DEEP-BLUE ONYX GEMSTONE

    This is an oval cabochon-cut, natural African deep-blue Onyx gemstone. It weighs 6.00cts and measures 14x10mm. Below are the technical specs Shape: Oval Cabochon-Cut. We are able to set the vast majority of standard sized gemstones into Gold or Silver jewellery (rings, pendants, and earrings).
    £2.77
    Click & Collect
    £1.50 postage
  • HUGE 25mm ROUND CABOCHON-CUT NATURAL AFRICAN JET-BLACK ONYX GEMSTONE

    HUGE 25mm ROUND CABOCHON-CUT NATURAL AFRICAN JET-BLACK ONYX GEMSTONE

    This is a huge, round cabochon-cut, jet-black Onyx gemstone. It weighs 25.95cts and measures 25mm across. Below are the technical specs Shape: Round Cabochon-Cut. We are able to set the vast majority of standard sized gemstones into Gold or Silver jewellery (rings, pendants, and earrings).
    £5.66
    Click & Collect
    £1.50 postage
  • Loose Black Onyx Multiple Cut Natural Untreated Onyx Stones AAAA Grade Brand New

    Loose Black Onyx Multiple Cut Natural Untreated Onyx Stones AAAA Grade Brand New

    £1.43
    Click & Collect
    Was: Previous price£1.59
    FAST & FREE
  • 20 Onyx Cabochons various sizes spares repairs

    20 Onyx Cabochons various sizes spares repairs

    20 Onyx Cabochons in various sizes. £1 coin pictured for scale and not included in the lot. These have been removed from scrap gold and silver jewellery. A small chip on back of one. Approximately 85 carats total.
    £0.99
    0 bids
    £2.80 postage
    Ending Today at 2:38PM GMT
  • HUGE 40x30mm OVAL CABOCHON-CUT NATURAL AFRICAN DEEP-BLUE ONYX GEMSTONE

    HUGE 40x30mm OVAL CABOCHON-CUT NATURAL AFRICAN DEEP-BLUE ONYX GEMSTONE

    This is an oval cabochon-cut, natural African deep-blue Onyx gemstone. It weighs 72.80cts and measures 40x30mm. Below are the technical specs Shape: Oval Cabochon-Cut. We are able to set the vast majority of standard sized gemstones into Gold or Silver jewellery (rings, pendants, and earrings).
    £6.33
    Click & Collect
    £1.50 postage
  • 15mm NATURAL BLACK ROUND ONYX CABOCHON CUT GEM GEMSTONE

    15mm NATURAL BLACK ROUND ONYX CABOCHON CUT GEM GEMSTONE

    Beautiful black Onyx with good colour, cut & polish. 15mm ROUND CABOCHON CUT. Measurements: 15mm Round Cabochon Cut. NATURAL ONYX GEMSTONE. Bead & Pearl Stringing Tools & Material. Over 10,000 products Sold!
    £2.30
    £1.49 postage
  • HUGE 40x30mm OVAL CABOCHON-CUT NATURAL AFRICAN JET-BLACK ONYX GEMSTONE

    HUGE 40x30mm OVAL CABOCHON-CUT NATURAL AFRICAN JET-BLACK ONYX GEMSTONE

    This is a massive oval cabochon-cut, natural African jet-black Onyx gemstone. It weighs 76.80cts and measures 40x30mm. Below are the technical specs Shape: Oval Cabochon-Cut. We are able to set the vast majority of standard sized gemstones into Gold or Silver jewellery (rings, pendants, and earrings).
    £4.33
    Click & Collect
    £1.50 postage
  • 20mm x 10mm NATURAL BLACK OVAL ONYX CABOCHON CUT GEM GEMSTONE

    20mm x 10mm NATURAL BLACK OVAL ONYX CABOCHON CUT GEM GEMSTONE

    20mm x 10mm OVAL CABOCHON CUT. Beautiful black Onyx with good colour, cut & polish. NATURAL ONYX GEMSTONE. Bead & Pearl Stringing Tools & Material. Measurements: 20mm x 10mm. Cut Grade: Good. © Jewellery Trade Resources|.
    £1.92
    £1.49 postage
  • LARGE 30x22mm OVAL CABOCHON-CUT NATURAL AFRICAN DEEP FOREST-GREEN ONYX GEMSTONE

    LARGE 30x22mm OVAL CABOCHON-CUT NATURAL AFRICAN DEEP FOREST-GREEN ONYX GEMSTONE

    This is an oval cabochon-cut, deep forest-green, natural African Onyx gemstones. It weighs 28.35cts and measures 30x22mm. Below are the technical specs Shape: Oval Cabochon-Cut. Colour: Deep Forest-Green.
    £0.99
    0 bids
    £1.50 postage
    Ending 5 Dec at 8:07PM GMT
  • A PAIR OF 10mm ROUND CABOCHON-CUT NATURAL AFRICAN JET-BLACK ONYX GEMSTONES

    A PAIR OF 10mm ROUND CABOCHON-CUT NATURAL AFRICAN JET-BLACK ONYX GEMSTONES

    This is a pair of large, round cabochon-cut, jet-black natural African Onyx gemstones. They weigh 4.00cts (8.00cts total weight) and measure 10mm across each. Size: A Pair of 10 mm. We are able to set the vast majority of standard sized gemstones into Gold or Silver jewellery (rings, pendants, and earrings).
    £3.22
    Click & Collect
    £1.50 postage
  • 5 PIECES OF 6mm ROUND CABOCHON-CUT NATURAL AFRICAN DEEP FOREST-GREEN ONYX GEMS

    5 PIECES OF 6mm ROUND CABOCHON-CUT NATURAL AFRICAN DEEP FOREST-GREEN ONYX GEMS

    This is a set of 5 pieces of round cabochon-cut, deep forest-green, natural African Onyx gemstones. They weigh 0.95cts (4.75cts total weight) and measures 6mm across each. Below are the technical specs.
    £2.88
    Click & Collect
    £1.50 postage
  • 3mm NATURAL BLACK ROUND ONYX CABOCHON CUT GEM GEMSTONE

    3mm NATURAL BLACK ROUND ONYX CABOCHON CUT GEM GEMSTONE

    Beautiful black Onyx with good colour, cut & polish. 3mm ROUND CABOCHON CUT. Measurements: 3mm Round Cabochon Cut. NATURAL ONYX GEMSTONE. Bead & Pearl Stringing Tools & Material. Over 10,000 products Sold!
    £1.20
    £1.49 postage
    50 sold50 sold
  • HUGE 40x30mm OVAL CABOCHON-CUT NATURAL AFRICAN JET-BLACK ONYX GEMSTONE £1 NR!

    HUGE 40x30mm OVAL CABOCHON-CUT NATURAL AFRICAN JET-BLACK ONYX GEMSTONE £1 NR!

    This is an oval cabochon-cut, natural African jet-black Onyx gemstone. It weighs 76.80cts and measures 40x30mm. Below are the technical specs Shape: Oval Cabochon-Cut. We are able to set the vast majority of standard sized gemstones into Gold or Silver jewellery (rings, pendants, and earrings).
    £0.99
    0 bids
    £1.50 postage
    Ending 5 Dec at 9:07PM GMT
  • LARGE 30x22mm OVAL CABOCHON-CUT NATURAL AFRICAN JET-BLACK ONYX GEMSTONE £1 NR!

    LARGE 30x22mm OVAL CABOCHON-CUT NATURAL AFRICAN JET-BLACK ONYX GEMSTONE £1 NR!

    This is an oval cabochon-cut, natural African jet-black Onyx gemstone. It weighs 30.55cts and measures 30x22mm. Below are the technical specs Shape: Oval Cabochon-Cut. We are able to set the vast majority of standard sized gemstones into Gold or Silver jewellery (rings, pendants, and earrings).
    £0.99
    0 bids
    £1.50 postage
    Ending Today at 8:46PM GMT
  • 4mm NATURAL BLACK ROUND ONYX CABOCHON CUT GEM GEMSTONE

    4mm NATURAL BLACK ROUND ONYX CABOCHON CUT GEM GEMSTONE

    Beautiful black Onyx with good colour, cut & polish. 4mm ROUND CABOCHON CUT. Measurements: 4mm Round Cabochon Cut. NATURAL ONYX GEMSTONE. Bead & Pearl Stringing Tools & Material. Over 10,000 products Sold!
    £1.08
    £1.49 postage
  • 14mm x 10mm NATURAL BLACK OVAL ONYX CABOCHON CUT GEM GEMSTONE

    14mm x 10mm NATURAL BLACK OVAL ONYX CABOCHON CUT GEM GEMSTONE

    14mm x 10mm OVAL CABOCHON CUT. Beautiful black Onyx with good colour, cut & polish. NATURAL ONYX GEMSTONE. Bead & Pearl Stringing Tools & Material. Measurements: 14mm x 10mm. Cut Grade: Good. © Jewellery Trade Resources|.
    £1.30
    £1.49 postage
  • A PAIR OF 8mm ROUND CABOCHON-CUT JET-BLACK NATURAL AFRICAN ONYX GEMSTONES £1 NR!

    A PAIR OF 8mm ROUND CABOCHON-CUT JET-BLACK NATURAL AFRICAN ONYX GEMSTONES £1 NR!

    This is a pair of round cabochon cut, jet-black, natural African Onyx gemstones. They weigh 2.15cts (4.30cts total weight) and measure 8mm across each. Below are the technical specs Size: A Pair of 8 mm.
    £0.99
    1 bid
    £1.50 postage
    Ending Today at 8:31PM GMT
  • Pink Onyx Cabochon 53.80 Cts

    Pink Onyx Cabochon 53.80 Cts

    Pink Onyx cabochon.
    £2.00
    0 bids
    £1.00 postage
    Ending 5 Dec at 11:57PM GMT
  • 12mm x 10mm NATURAL BLACK OVAL ONYX CABOCHON CUT GEM GEMSTONE

    12mm x 10mm NATURAL BLACK OVAL ONYX CABOCHON CUT GEM GEMSTONE

    12mm x 10mm OVAL CABOCHON CUT. Beautiful black Onyx with good colour, cut & polish. NATURAL ONYX GEMSTONE. Bead & Pearl Stringing Tools & Material. Measurements: 12mm x 10mm. Cut Grade: Good. © Jewellery Trade Resources|.
    £1.24
    £1.49 postage
  • 22mm NATURAL BLACK ROUND ONYX CABOCHON CUT GEM GEMSTONE

    22mm NATURAL BLACK ROUND ONYX CABOCHON CUT GEM GEMSTONE

    Beautiful black Onyx with good colour, cut & polish. 22mm ROUND CABOCHON CUT. Measurements: 22mm Round Cabochon Cut. NATURAL ONYX GEMSTONE. Bead & Pearl Stringing Tools & Material. Over 10,000 products Sold!
    £5.49
    £1.49 postage
  • A PAIR OF 12x10mm OVAL CABOCHON-CUT NATURAL AFRICAN DEEP-BLUE ONYX GEMSTONES

    A PAIR OF 12x10mm OVAL CABOCHON-CUT NATURAL AFRICAN DEEP-BLUE ONYX GEMSTONES

    This is a pair of oval cabochon-cut, natural African deep-blue Onyx gemstones. They weigh 4.75cts (9.50cts total weight) and measure 12x10mm each. Below are the technical specs Size: A Pair of 12x10 mm.
    £0.99
    1 bid
    £1.50 postage
    Ending 5 Dec at 9:15PM GMT
  • 10mm x 8mm NATURAL BLACK OVAL ONYX CABOCHON CUT GEM GEMSTONE

    10mm x 8mm NATURAL BLACK OVAL ONYX CABOCHON CUT GEM GEMSTONE

    10mm x 8mm OVAL CABOCHON CUT. Beautiful black Onyx with good colour, cut & polish. NATURAL ONYX GEMSTONE. Bead & Pearl Stringing Tools & Material. Measurements: 10mm x 8mm. Cut Grade: Good. © Jewellery Trade Resources|.
    £1.14
    £1.49 postage
  • A PAIR OF 10x8mm OVAL CABOCHON-CUT JET-BLACK NATURAL AFRICAN ONYX GEMSTONES

    A PAIR OF 10x8mm OVAL CABOCHON-CUT JET-BLACK NATURAL AFRICAN ONYX GEMSTONES

    This is a pair of oval cabochon-cut, natural African jet-black Onyx gemstones. They weigh 2.45cts (4.90cts total) and measure 10x8mm each. Below are the technical specs Size: A Pair of 10x8 mm. We are able to set the vast majority of standard sized gemstones into Gold or Silver jewellery (rings, pendants, and earrings).
    £2.44
    Click & Collect
    £1.50 postage
  • A PAIR OF 8mm ROUND CABOCHON-CUT NATURAL AFRICAN DEEP-BLUE ONYX GEMSTONES

    A PAIR OF 8mm ROUND CABOCHON-CUT NATURAL AFRICAN DEEP-BLUE ONYX GEMSTONES

    This is a pair of round cabochon-cut, natural African deep-blue Onyx gemstones. They weigh 2.15cts (4.30cts total) and measure 8mm across each. Below are the technical specs Size: A Pair of 8 mm.
    £2.44
    Click & Collect
    £1.50 postage
  • LARGE 25x18mm OVAL CABOCHON-CUT NATURAL AFRICAN JET-BLACK ONYX GEMSTONE

    LARGE 25x18mm OVAL CABOCHON-CUT NATURAL AFRICAN JET-BLACK ONYX GEMSTONE

    This is an oval cabochon-cut, natural African jet-black Onyx gemstone. It weighs 20.60cts and measures 25x18mm. Below are the technical specs Shape: Oval Cabochon-Cut. We are able to set the vast majority of standard sized gemstones into Gold or Silver jewellery (rings, pendants, and earrings).
    £4.44
    Click & Collect
    £1.50 postage

Got one to sell?

Get it in front of 17+ million UK buyers.