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    Loose Gemstones

    Exceptional loose gemstones from our Antwerp vault represent nature’s finest artistry, where each one-of-a-kind specimen combines rarity with investment-grade quality. Our GIA-certified precious stones – from vivid sapphires to pure emeralds – offer genuine treasures meticulously selected for collectors who demand authentic excellence and timeless value.

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    Diamond shape refers to the overall outline and facets of a diamond. It’s a crucial factor that affects a diamond’s brilliance, fire, and scintillation – its ability to reflect light and sparkle.

    LEARN MORE ABOUT Shape
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    Carat weight

    Carat weight

    Diamond weight, also known as carat weight, is a measure of a diamond’s mass. It’s one of the four Cs (carat, cut, clarity, and color) that determine a diamond’s value and price.

    LEARN MORE ABOUT Carat weight
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    2.30 Ct Vivid Green Oval Tsavorite Garnet

    2.30 Ct Vivid Green Oval Tsavorite Garnet

    8,050.00$
    26.17 Ct Loupe Clean Light Blue-Green Cushion Mozambican Paraiba Tourmaline

    26.17 Ct Loupe Clean Light Blue-Green Cushion Mozambican Paraiba Tourmaline

    125,000.00$
    2.75 Ct Intense Green Octagonal Colombian Emerald No Oil

    2.75 Ct Intense Green Octagonal Colombian Emerald No Oil

    29,900.00$
    5.43 ct Intense Blue Octagonal Ceylon Sapphire

    5.43 ct Intense Blue Octagonal Ceylon Sapphire

    29,750.00$
    25 ct Emerald Cut Purple Amethyst Gemstone

    25 ct Emerald Cut Purple Amethyst Gemstone

    700.00$
    75 ct Oval Shape Purple Amethyst Cabochon

    75 ct Oval Shape Purple Amethyst Cabochon

    1,250.00$
    3.06 carat Heart Shape Green Tsavorite

    3.06 Heart Shape Green Tsavorite

    5,900.00$
    4.54 carat Heart Shape Tanzanite

    4.54 Heart Shape Tanzanite

    3,500.00$
    3.41 carat Mandarin Color Cushion Shape Garnet

    3.41 Mandarin Color Cushion Shape Garnet

    8,200.00$
    3.67 carat Violet Heart Shape Garnet

    3.67 Violet Heart Shape Garnet

    1,200.00$
    6.67 carat Violet Heart Shape Garnet

    6.67 Violet Heart Shape Garnet

    3,900.00$
    1.79 carat Vivid Blue Oval Shape Sri Lanka Sapphire

    1.79 Vivid Blue Oval Shape Sri Lanka Sapphire

    4,212.00$
    1.51 carat Vivid Blue Cushion Shape Sri Lanka Sapphire

    1.51 Vivid Blue Cushion Shape Sri Lanka Sapphire

    2,651.00$
    1.59 carat Vivid Blue Cushion Shape Sri Lanka Sapphire

    1.59 Vivid Blue Cushion Shape Sri Lanka Sapphire

    2,791.00$
    1.41 carat Vivid Blue Round Shape Sri Lanka Sapphire

    1.41 Vivid Blue Round Shape Sri Lanka Sapphire

    2,475.00$
    1.90 carat Blue Pear Shape Sri Lanka Sapphire

    1.90 Blue Pear Shape Sri Lanka Sapphire

    2,964.00$
    1.88 carat Vivid Blue Cushion Shape Sri Lanka Sapphire

    1.88 Vivid Blue Cushion Shape Sri Lanka Sapphire

    5,133.00$
    1.38 carat Vivid Blue Oval Shape Sri Lanka Sapphire

    1.38 Vivid Blue Oval Shape Sri Lanka Sapphire

    3,767.00$
    6.21 carat Vivid Blue Oval Shape Sri Lanka Sapphire GRS

    6.21 Vivid Blue Oval Shape Sri Lanka Sapphire GRS

    24,219.00$
    6.80 carat Blue Oval Shape Sri Lanka Sapphire GRS

    6.80 Blue Oval Shape Sri Lanka Sapphire GRS

    21,658.00$
    6.35 carat Vivid to Deep Blue Pear Shape Sri Lanka Sapphire GRS

    6.35 Vivid to Deep Blue Pear Shape Sri Lanka Sapphire GRS

    24,765.00$
    6.30 carat Blue Oval Shape Sri Lanka Sapphire GRS

    6.30 Blue Oval Shape Sri Lanka Sapphire GRS

    22,932.00$
    7.38 carat Blue Oval Shape Sri Lanka Sapphire GRS

    7.38 Blue Oval Shape Sri Lanka Sapphire GRS

    20,148.00$
    6.88 carat Blue Oval Shape Sri Lanka Sapphire GRS

    6.88 Blue Oval Shape Sri Lanka Sapphire GRS

    21,913.00$
    5.01 carat Vivid red Oval Shape Burma Ruby GRS

    5.01 Vivid red Oval Shape Burma Ruby GRS

    29,310.00$
    6.60 carat Blue Oval Shape Sri Lanka Sapphire GRS

    6.60 Blue Oval Shape Sri Lanka Sapphire GRS

    21,021.00$
    6.09 carat Blue Pear Shape Sri Lanka Sapphire GRS

    6.09 Blue Pear Shape Sri Lanka Sapphire GRS

    26,522.00$
    6.07 carat Blue Cushion Shape Sri Lanka Sapphire GRS

    6.07 Blue Cushion Shape Sri Lanka Sapphire GRS

    19,333.00$
    7.92 carat Blue Cushion Shape Sri Lanka Sapphire

    7.92 Blue Cushion Shape Sri Lanka Sapphire

    10,296.00$
    8.67 carat Vivid Blue Cushion Shape Sri Lanka Sapphire GRS

    8.67 Vivid Blue Cushion Shape Sri Lanka Sapphire GRS

    49,593.00$
    6.70 carat Vivid Blue Oval Shape Sri Lanka Sapphire GRS

    6.70 Vivid Blue Oval Shape Sri Lanka Sapphire GRS

    26,130.00$
    7.06 carat Blue Pear Shape Sri Lanka Sapphire GRS

    7.06 Blue Pear Shape Sri Lanka Sapphire GRS

    34,876.00$
    7.65 carat Intense to Vivid Blue Cushion Shape Sri Lanka Sapphire GRS

    7.65 Intense to Vivid Blue Cushion Shape Sri Lanka Sapphire GRS

    29,825.00$
    2.45 carat Blue Cushion Shape Sri Lanka Sapphire

    2.45 Blue Cushion Shape Sri Lanka Sapphire

    2,450.00$
    1.07 carat Vivid Purplish Pink Cushion Shape Sri Lanka Sapphire

    1.07 Vivid Purplish Pink Cushion Shape Sri Lanka Sapphire

    2,700.00$
    1.93 carat Purple Oval Shape Sri Lanka Sapphire

    1.93 Purple Oval Shape Sri Lanka Sapphire

    1,950.00$
    1.95 carat Yellow Trillion Shape Sri Lanka Sapphire

    1.95 Yellow Trillion Shape Sri Lanka Sapphire

    1,950.00$
    2.62 carat Vivid Violet Oval Shape Sri Lanka Sapphire

    2.62 Vivid Violet Oval Shape Sri Lanka Sapphire

    2,882.00$
    3.23 carat Deep Yellow Rose Cut Sapphire

    3.23 Deep Yellow Rose Cut Sapphire

    2,745.00$
    3.40 carat Blue Oval Shape Sri Lanka Sapphire

    3.40 Blue Oval Shape Sri Lanka Sapphire

    3,200.00$
    1.35 carat Deep Bluish Green Pear Shape Colombian Emerald IGI

    1.35 Deep Bluish Green Pear Shape Colombian Emerald IGI

    2,350.00$
    2.1 carat Deep Bluish Green Pear Shape Colombian Emerald IGI

    2.1 Deep Bluish Green Pear Shape Colombian Emerald IGI

    4,300.00$
    5.91 carat Vivid Purplish Pink Cushion Shape Spinel

    5.91 Vivid Purplish Pink Cushion Shape Spinel

    4,700.00$
    5.43 carat Purple-Pink Cushion Shape Spinel

    5.43 Purple-Pink Cushion Shape Spinel

    4,400.00$
    5.70 carat Vivid Pink Cushion Shape Spinel

    5.70 Vivid Pink Cushion Shape Spinel

    5,200.00$
    7.00 carat Oval Shape Aquamarine

    7.00 Oval Shape Aquamarine

    890.00$
    5.01 carat Pair of Spinel

    5.01 Pair of Spinel

    2,200.00$
    2.49 carat Cushion Shape Spinel

    2.49 Cushion Shape Spinel

    750.00$

    More about Loose Gemstones

    Gemstone Quality Assessment and Authentication

    Natural gemstones derive their value from rarity, origin location, and treatment history, making professional evaluation essential for informed purchasing decisions. Precious stones from legendary sources like Kashmir sapphires or Burmese rubies command premium prices due to exceptional color saturation and clarity characteristics. Certified documentation provides authentication of natural origin and conflict-free sourcing, while gemological assessment examines inclusion patterns and optical phenomena that determine market worth.

    Read more +

    Benefits of Purchasing Loose Precious Stones

    The loose gemstones market offers collectors direct access to investment-grade specimens without the markup associated with finished jewelry. Hand-selected stones provide superior cost-per-carat value compared to traditional retail channels, allowing buyers to examine color distribution and clarity grades before custom jewelry creation. Professional cutting and artisan craftsmanship enhance natural beauty, particularly in premium collections where each loose gem receives individual attention for optimal brilliance.

    Reuven Veksler’s Premium Natural Gems Collection

    Our curated selection of loose precious stones represents museum-quality specimens sourced through sustainable practices and verified provenance from our Antwerp operations since 1974. Each natural gemstone undergoes rigorous evaluation by certified experts, ensuring collector-grade quality with traceable origins and lifetime warranty protection. From vivid sapphires to pure emeralds, our conflict-free collection offers authentic value for buyers seeking exceptional stones with superior optical characteristics and documented investment potential.

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    Frequently Asked questions

    What makes loose gemstones a better choice than pre-set stones? 

    Purchasing loose gemstones offers superior flexibility and value compared to pre-set jewelry. You can examine the stone’s natural characteristics, clarity, and color saturation without interference from settings, ensuring you’re buying genuine, high-quality specimens. Loose precious stones also allow for custom jewelry creation, where you control both the gemstone selection and design process, often resulting in better cost per carat value.

    How do you determine the worth of colored gemstones? 

    The value of colored precious stones depends on rarity, origin, natural color intensity, and clarity grade. Pure, untreated specimens from legendary sources like Burma rubies or Kashmir sapphires command premium prices due to their aesthetic appeal and investment potential. GIA certified gemstones provide documented authenticity, helping buyers understand the real market worth of their purchase.

    Are natural gemstones conflict-free and ethically sourced? 

    Our natural gemstone collection consists entirely of conflict-free specimens sourced through established networks with documented origins. Each precious stone comes with clear provenance information, ensuring ethical mining practices and responsible sourcing. This commitment to conflict-free sourcing protects both the buyer’s investment and supports sustainable gemstone trade practices.

    What's the difference between precious and semi-precious gemstones? 

    Precious stones include diamonds, rubies, sapphires, and emeralds – the traditional “big four” known for their rarity, durability, and high value. Semi-precious rocks encompass all other natural gemstones like tanzanite, garnet, or amethyst, which can still be quite rare and valuable depending on quality and origin. Both categories offer genuine beauty and investment potential when purchasing high-quality, certified specimens.

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    Bringing clarity to the realm of diamonds, gems, and fine jewelry through insight that elevates interest into true expertise.

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