Results in Trillion Transparent Loose Diamonds & Gemstones

1-25 of 694

  •  Opal Natural Loose Gemston 3.9 Ct Precious Gemstone Precision Cut By AveryGems

    Opal Natural Loose Gemston 3.9 Ct Precious Gemstone Precision Cut By AveryGems

    Gorgeous, Fire Opal professionally faceted by Avery Gems, this trillion cut gemstone is ideal for a ring or pendant. Each rough gemstone is unique with its own personality so I design a specific gemstone design for each stone.
    £85.00
    Click & Collect
    £3.27 postage
  • NATURAL Blue Ceylon Sapphire 0.61ct UNTREATED Sri Lanka Gem RARE

    NATURAL Blue Ceylon Sapphire 0.61ct UNTREATED Sri Lanka Gem RARE

    Earth mined in Sri Lanka, source of some of the finest sapphires in the world. This stone has a deep cornflower blue colour typical of fine Ceylon sapphires. Natural Sapphire with stunning light cornflower blue colour.
    £50.00
    Available for Best Offeror Best Offer
    £1.50 postage
  • 7mm TRILLIANT-FACET LIGHT-PURPLE NATURAL BRAZILIAN AMETHYST GEMSTONE £1 NR!

    7mm TRILLIANT-FACET LIGHT-PURPLE NATURAL BRAZILIAN AMETHYST GEMSTONE £1 NR!

    This is a beautiful fine-purple, trilliant-facet, natural Brazilian Amethyst gemstone. It weighs 1.15cts and measures 7mm across. Below are the technical details Colour: Purple. We are able to set the vast majority of standard sized gemstones into Gold or Silver jewellery (rings, pendants, and earrings).
    £0.99
    1 bid
    £1.50 postage
    Ending Today at 7:42PM GMT
  • loose Natural citrine huge  7.68ct trillion cut 13.8mm  loose gemstones

    loose Natural citrine huge 7.68ct trillion cut 13.8mm loose gemstones

    Natural citrine. all of our gemstones are graded according to GIA guidelines for clarity type for the stone being graded. Type I. Usually eye clean. Type II. Quartz, amethyst, citrine, ametrine. Type III.
    £15.00
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    Click & Collect
  • UNUSUAL 8mm TRILLIANT-FACET DEEP-RED NATURAL ORISSA GARNET GEMSTONE £1 NR!

    UNUSUAL 8mm TRILLIANT-FACET DEEP-RED NATURAL ORISSA GARNET GEMSTONE £1 NR!

    This is a beautiful, trilliant-facet, fine deep-red, natural African Orissa Garnet gemstone. It weighs 1.75cts and measures 8mm across. Below are the technical details Extra Charges Lustre: Outstanding.
    £0.99
    0 bids
    £1.50 postage
    Ending Thursday at 8:01PM GMT
  • NATURAL Blue Ceylon Sapphire 0.67ct UNTREATED Sri Lanka Gem Diamond RARE

    NATURAL Blue Ceylon Sapphire 0.67ct UNTREATED Sri Lanka Gem Diamond RARE

    Earth mined in Sri Lanka, source of some of the finest sapphires in the world. This stone has a deep cornflower blue colour typical of fine Ceylon sapphires. Natural Sapphire with stunning cornflower blue colour.
    £85.00
    Available for Best Offeror Best Offer
    £1.50 postage
  • 12mm TRILLIANT-FACET STRONG-PURPLE NATURAL AFRICAN AMETHYST GEMSTONE (APP £245)

    12mm TRILLIANT-FACET STRONG-PURPLE NATURAL AFRICAN AMETHYST GEMSTONE (APP £245)

    This is a stunning, trilliant-facet, strong-purple, natural African Amethyst gemstone. It weighs 4.45cts and measures 12mm across. We are able to set the vast majority of standard sized gemstones into Gold or Silver jewellery (rings, pendants, and earrings).
    £8.66
    Click & Collect
    £1.50 postage
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  • 6mm TRILLIANT-FACET DEEP-PURPLE NATURAL AFRICAN AMETHYST GEMSTONE

    6mm TRILLIANT-FACET DEEP-PURPLE NATURAL AFRICAN AMETHYST GEMSTONE

    This is a beautiful deep-purple, trilliant-facet, natural African Amethyst gemstone. It weighs 0.65cts and measures 6mm across. Below are the technical details We are able to set the vast majority of standard sized gemstones into Gold or Silver jewellery (rings, pendants, and earrings).
    £3.03
    Click & Collect
    £1.50 postage
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  • NATURAL Violet Purple Sapphire 1.01ct UNTREATED Rare Triangle Trillion Unheated

    NATURAL Violet Purple Sapphire 1.01ct UNTREATED Rare Triangle Trillion Unheated

    100% Natural Sapphire with a very nice vivid Violet purple colour. This sapphire is totally Untreated/Unheated. No heat, fillings or any other treatment. Untreated/unheated sapphires of this size and quality are very rare.
    £70.00
    Available for Best Offeror Best Offer
    £1.50 postage
  • 1.00 Cts Natural Mined Loose Gem Trillion Twilight Blue Sapphire  6.8x6.8 MM LxW

    1.00 Cts Natural Mined Loose Gem Trillion Twilight Blue Sapphire 6.8x6.8 MM LxW

    Product Name :: Natural Mined Trillion Blue Sapphire. Cut:: Trillion. Colour:: Twilight Blue. This is a truly high quality gemstone. Stone shows beautiful twilight blue, great light refraction, excellent cutting, and looks very clean to the naked eye.
    £345.37
    From United States
    £20.45 postage
  • Classic Trillion Cabochon 0.90 Cts. Natural ETHIOPIAN OPAL Loose Gemstone 8x8 mm

    Classic Trillion Cabochon 0.90 Cts. Natural ETHIOPIAN OPAL Loose Gemstone 8x8 mm

    Classic Trillion Cabochon 0.90 Cts. Natural ETHIOPIAN OPAL Loose Gemstone 8x8 mm. Gemstone Shape - Trillion Cabochon. Gemstone Name - Ethiopian Opal (Genuine). Weight (Cts) - 0.90 Cts. Stuff Type - Gemstone.
    £4.84
    From India
    Free P&P
  • 1.54 ct Spessartite / Spessartine Garnet Trillion 7.4x6.5mm Si1 Natural gemstone

    1.54 ct Spessartite / Spessartine Garnet Trillion 7.4x6.5mm Si1 Natural gemstone

    A 1.54 carat Spessartite Garnet. Colour is an enchanting orange brown, with good cut and lustre. All my gems and minerals come with a small free gift because everyone loves a present! Having just received my Diploma in Applied Geology I have a keen interest in minerals and gemstones.
    £12.95
    eBay Premium Service
    Available for Best Offeror Best Offer
    Estimated delivery dateEst. delivery Thu, Dec 8
    FAST & FREE
  • Natural Ethiopian Opal Trillion Cabochon Pair 7 mm 1.73 cts Attrective Gemstone

    Natural Ethiopian Opal Trillion Cabochon Pair 7 mm 1.73 cts Attrective Gemstone

    We are available 24. We're not happy unless you are!
    £19.99
    From India
    Free P&P
  • 3.01 Ct Natural Ethiopian Cabochon Opal Gemstone Multi Color Trillion Cut

    3.01 Ct Natural Ethiopian Cabochon Opal Gemstone Multi Color Trillion Cut

    The play of color makes the opal one of the favorite gemstones for jewelry. What distinguishes the opal from other stones is the unique play of color and glint of light that sets the opal apart from every other gemstone.
    £110.13
    From United States
    Available for Best Offeror Best Offer
    Free P&P
  • NATURAL Ceylon Blue Sapphire 0.70ct IGI CERTIFIED Triangle TrillionCut SRI LANKA

    NATURAL Ceylon Blue Sapphire 0.70ct IGI CERTIFIED Triangle TrillionCut SRI LANKA

    Natural Sapphire with stunning vivid blue colour and an excellent trillion/triangle cut. Fully certified by IGI in Antwerp, one of their best and most well equipped gem labs. Earth mined in Sri Lanka, source of some of the finest sapphires in the world.
    £205.00
    Available for Best Offeror Best Offer
    £1.50 postage
  • 7mm TRILLIANT-FACET LIGHT-PURPLE NATURAL BRAZILIAN AMETHYST GEMSTONE

    7mm TRILLIANT-FACET LIGHT-PURPLE NATURAL BRAZILIAN AMETHYST GEMSTONE

    This is a beautiful fine-purple, trilliant-facet, natural Brazilian Amethyst gemstone. It weighs 1.15cts and measures 7mm across. Below are the technical details Colour: Purple. We are able to set the vast majority of standard sized gemstones into Gold or Silver jewellery (rings, pendants, and earrings).
    £3.11
    Click & Collect
    £1.50 postage
  • A Single 5mm Amazing DEEP BLUE Trillion Cut Enhanced Natural SAPPHIRE!!!

    A Single 5mm Amazing DEEP BLUE Trillion Cut Enhanced Natural SAPPHIRE!!!

    Shape/Cut = Trillion. A Single 5mm Amazing DEEP BLUE Enhanced Natural SAPPHIRE! Sapphire is found in only a few locations in the world. The three most famous regions for blue sapphire are Kashmir, Burma and Sri Lanka.
    £13.33
    From United States
    Available for Best Offeror Best Offer
    £10.62 postage
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  • 2.97 Ct IGI Certified Natural Ethiopian Faceted Opal Multi Color Trillion Cut

    2.97 Ct IGI Certified Natural Ethiopian Faceted Opal Multi Color Trillion Cut

    The play of color makes the opal one of the favorite gemstones for jewelry. What distinguishes the opal from other stones is the unique play of color and glint of light that sets the opal apart from every other gemstone.
    £177.00
    From United States
    Available for Best Offeror Best Offer
    Free P&P
  • 2.15 Ct Natural Ethiopian Cabochon Opal Gemstone Multi Color Trillion Cut

    2.15 Ct Natural Ethiopian Cabochon Opal Gemstone Multi Color Trillion Cut

    The play of color makes the opal one of the favorite gemstones for jewelry. What distinguishes the opal from other stones is the unique play of color and glint of light that sets the opal apart from every other gemstone.
    £76.30
    From United States
    Available for Best Offeror Best Offer
    Free P&P
  • 1.64 CTS_WORLD CLASS VERY RARE GEMSTONE_100 % NATURAL AMETHYST

    1.64 CTS_WORLD CLASS VERY RARE GEMSTONE_100 % NATURAL AMETHYST

    : 100% Natural Amethyst. : 1.64 Cts. "Loupe-Clean" or "10X clean" ~100% Clean - Exceptional quality with no inclusion(s) visible using a 10X loupe. "Included-Declasse"~ Heavily Included -stones not transparent because of inclusions.
    £3.99
    0 bids
    £6.25 postage
    Ending Friday at 10:00AM GMT
    From Thailand
  • 1.74 CTS_WORLD CLASS VERY RARE GEMSTONE_100 % NATURAL AMETHYST

    1.74 CTS_WORLD CLASS VERY RARE GEMSTONE_100 % NATURAL AMETHYST

    : 100% Natural Amethyst. : 1.74 Cts. "Loupe-Clean" or "10X clean" ~100% Clean - Exceptional quality with no inclusion(s) visible using a 10X loupe. "Included-Declasse"~ Heavily Included -stones not transparent because of inclusions.
    £3.99
    0 bids
    £6.25 postage
    Ending Friday at 1:51PM GMT
    From Thailand
  • UNUSUAL 10mm TRILLIANT-FACET HOT-PINK SAPPHIRE GEMSTONE

    UNUSUAL 10mm TRILLIANT-FACET HOT-PINK SAPPHIRE GEMSTONE

    This is a beautiful trilliant-facet, stunning-pink lab Sapphire gemstone. It weighs 4.05cts and measures 10mm across. Extra Charges.
    £4.22
    Click & Collect
    £1.50 postage
  • A PAIR OF 5mm TRILLIANT-FACET NATURAL AFRICAN GOLDEN CITRINE GEMSTONES

    A PAIR OF 5mm TRILLIANT-FACET NATURAL AFRICAN GOLDEN CITRINE GEMSTONES

    This is a pair of beautiful trilliant-facet, golden-yellow natural African Citrine gemstones. They weigh 0.35cts (0.70cts total) and measure 5mm across each. Below are some technical details Size: A Pair of 5 mm.
    £2.66
    Click & Collect
    £1.50 postage
  • 3.52 Ct Natural Ethiopian Cabochon Opal Gemstone Multi Color Trillion Cut

    3.52 Ct Natural Ethiopian Cabochon Opal Gemstone Multi Color Trillion Cut

    The play of color makes the opal one of the favorite gemstones for jewelry. What distinguishes the opal from other stones is the unique play of color and glint of light that sets the opal apart from every other gemstone.
    £157.34
    From United States
    Available for Best Offeror Best Offer
    Free P&P
  • 1.46 CTS_WORLD CLASS VERY RARE GEMSTONE_100 % NATURAL AMETHYST

    1.46 CTS_WORLD CLASS VERY RARE GEMSTONE_100 % NATURAL AMETHYST

    : 100% Natural Amethyst. : 1.46 Cts. "Loupe-Clean" or "10X clean" ~100% Clean - Exceptional quality with no inclusion(s) visible using a 10X loupe. "Included-Declasse"~ Heavily Included -stones not transparent because of inclusions.
    £3.99
    0 bids
    £6.25 postage
    Ending Friday at 7:32AM GMT
    From Thailand

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