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Sort by:
- Featured
- Most relevant
- Best selling
- Alphabetically, A-Z
- Alphabetically, Z-A
- Price, low to high
- Price, high to low
- Date, old to new
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2.35 Ct Bluish Green Tourmaline | Cushion Cut Afghan Gemstone
Enhance your jewelry collection with this 2.35-carat Natural Tourmaline from Afghanistan, featuring an attractive green to bluish green color and a classic Cushion cut. Measuring 7.3 × 7 × 5.3 mm, this untreated loose Tourmaline is a distinctive choice for custom rings, pendants, earrings, and...- $150.00
- $150.00
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2.45 Ct Bluish Green Tourmaline | Cushion Cut Afghan Gemstone
Discover the natural beauty of this 2.45-carat Natural Tourmaline from Afghanistan, featuring an attractive green to bluish green color and a classic Cushion cut. Measuring 8.8 × 6.6 × 4.7 mm, this untreated loose gemstone is a beautiful choice for custom rings, earrings, pendants, and...- $220.00
- $220.00
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3.70 Ct Bicolor Tourmaline | Emerald Cut Afghan Gemstone
Discover the distinctive beauty of this 3.70-carat Natural Bicolor Tourmaline from Afghanistan, featuring an elegant Emerald cut and natural multicolor appearance. Measuring 10.7 × 6.9 × 5.1 mm, this loose gemstone offers an eye-catching combination of color and shape for custom jewelry designs and gemstone...- $550.00
- $550.00
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2.45 Ct Seafoam Tourmaline | Natural Afghan Cushion Cut Gemstone
Add a distinctive touch to your gemstone collection with this 2.45-carat Natural Seafoam Tourmaline from Afghanistan. Featuring a refreshing seafoam color and an elegant Cushion Cut, this loose Tourmaline offers a soft and attractive appearance that works well for custom jewelry designs and gemstone collections....- $280.00
- $280.00
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3.25 Ct Green Bluish Green Tourmaline | Afghan Cushion Cut Gemstone - Green
Discover the beauty of this 3.25-carat Natural Tourmaline from Afghanistan, featuring an attractive green to bluish green color and an elegant Cushion Cut. Measuring 9.5 × 7 × 5.4 mm, this untreated loose Tourmaline offers a distinctive combination of natural color, balanced proportions, and...- $250.00
- $250.00
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Green
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3.70 Ct Seafoam Blue Tourmaline | Aqua Blue Afghan Gemstone
Discover the refreshing beauty of this 3.70-carat Natural Tourmaline from Afghanistan, featuring an attractive seafoam blue to aqua blue color inspired by the soft tones of tropical waters. Its combination of blue and green tones gives this loose Tourmaline a distinctive appearance, while the Cushion...- $449.00
- $449.00
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2.85 Ct Seafoam Blue Tourmaline | Emerald Cut Afghan Gemstone
Discover the refreshing beauty of this 2.85-carat Natural Seafoam Blue Tourmaline from Afghanistan, featuring a captivating blend of blue and green tones. Its distinctive seafoam blue color gives the gemstone a calm and elegant appearance, while the elongated Emerald Cut creates a refined look...- $450.00
- $450.00
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2.65 Ct Tsavorite Garnet | Vivid Green African Gemstone - Green
Discover the striking beauty of this 2.65-carat Natural Tsavorite Garnet from Africa, featuring a vivid green color and an elegant Pear Cut. Known for its vibrant green appearance, Tsavorite Garnet is a distinctive member of the garnet family and an attractive choice for collectors and...- $700.00
- $700.00
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Green
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9.80 Ct Trillion Cut Amethyst | Purple African Gemstone - Purple
Discover the distinctive beauty of this 9.80-carat Natural Amethyst from Africa, featuring an elegant Trillion Cut and an attractive purple color. With its geometric triangular shape and faceted finish, this loose Amethyst offers a modern appearance that can work beautifully in custom jewelry designs....- $150.00
- $150.00
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Purple
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22.20 Ct Heart Shape Amethyst | Deep Purple African Gemstone - Purple
Discover the striking beauty of this 22.20-carat Natural Amethyst from Africa, featuring an elegant Heart Cut and a rich deep purple color. Its impressive size and distinctive heart shape give this loose Amethyst a bold appearance, making it an appealing choice for custom jewelry and...- $250.00
- $250.00
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Purple
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4.00 Ct Lagoon Tourmaline | Blue Green Afghan Gemstone
Discover the distinctive beauty of this 4.00-carat Natural Lagoon Tourmaline from Afghanistan, featuring an attractive light blue-green color and an elegant Cushion Cut. Often described as a lagoon shade, its refreshing combination of blue and green tones gives this gemstone a distinctive appearance. Measuring 12.5...- $2,000.00
- $2,000.00
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7.70 Ct Mandarin Citrine – Princess Cut Uruguay Gemstone - Orange
Discover the distinctive beauty of this 7.70-carat Mandarin Citrine from Uruguay, featuring an elegant Princess Cut and measuring 12.8 × 11 × 8.2 mm. Its striking mandarin color combined with the geometric princess cut gives this Citrine a modern and refined appearance. This Uruguay Citrine...- $180.00
- $180.00
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Orange
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11.75 Ct Mandarin Cushion Cut Citrine – Uruguay Gemstone - Orange
Discover the warm beauty of this 11.75-carat Mandarin Citrine from Uruguay, featuring an elegant Cushion Cut and substantial dimensions of 14.9 × 12.6 × 9.5 mm. Its distinctive mandarin color and generous size make it an appealing choice for gemstone enthusiasts and custom jewelry designs....- $200.00
- $200.00
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Orange
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6.75 Ct Precision Cut Citrine – Natural Uruguay Gemstone - Orange
Discover the distinctive beauty of this 6.75-carat Precision Cut Citrine from Uruguay. Measuring 11.8 × 11.5 × 8.7 mm, this Citrine features a precision-cut finish designed to enhance its visual appeal and interaction with light. This Uruguay Citrine is a versatile choice for custom...- $160.00
- $160.00
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Orange
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5.70 Ct Faceted Mandarin Citrine – Natural Uruguay Gemstone - Orange
Discover the warm golden-orange beauty of this 5.70-carat Mandarin Citrine from Uruguay. Featuring a precise faceted finish and measuring 10.2 × 10.3 × 7.9 mm, this Citrine gemstone offers an attractive combination of rich color, substantial size, and sparkling faceted surfaces. This Uruguay Citrine is...- $160.00
- $160.00
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Orange
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10.90 Ct Heart Shape Ametrine – Natural Bolivian Gemstone - Purplish Pink
Discover the distinctive beauty of this 10.90-carat Ametrine from Bolivia, featuring an elegant Heart shape and a generous gemstone size. Measuring 13.87 × 15.22 × 10.33 mm, this loose Ametrine offers a unique combination of size, shape, and natural character. The romantic Heart shape...- $335.00
- $335.00
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Purplish Pink
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3.15 Ct Precision Cut Peridot | Pakistani August Birthstone - Bright Green
Discover the distinctive beauty of this 3.15-carat Peridot from Pakistan, featuring a precise Trillion cut and an elegant faceted appearance. Measuring 8.9 × 8.9 × 6.4 mm, this loose Peridot offers a balanced triangular shape that makes it an eye-catching choice for custom jewelry...- $299.00
- $299.00
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Bright Green
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2.15 Ct Bluish Green Tourmaline | Natural Afghan Gemstone - Bluish Green
Discover the natural beauty of this 2.15-carat Bluish Green Tourmaline from Afghanistan, featuring an attractive blend of blue and green tones. Measuring 8.4 × 5.7 × 4.8 mm, this loose Tourmaline offers a distinctive color and appealing size for custom jewelry designs and gemstone...- $199.00
- $199.00
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Bluish Green
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2.75 Ct Lagoon Blue Tourmaline | Natural Afghan Gemstone - Blue
Discover the captivating beauty of this 2.75-carat Lagoon Blue Tourmaline from Afghanistan, featuring an attractive lagoon blue color and a distinctive natural appearance. Measuring 8.2 × 6.9 × 6 mm, this loose Tourmaline offers a beautiful combination of color, size, and natural character. The...- $200.00
- $200.00
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Blue
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7.40 Ct Electric Blue Topaz – Precision Cut Brazilian Gemstone - Blue
Discover the striking beauty of this 7.40-carat Electric Blue Topaz from Brazil, featuring a precisely crafted Precision cut and a vivid electric blue color. Measuring 11.7 × 10.6 × 8 mm, this loose Topaz offers an attractive combination of substantial size, vibrant color, and...- $180.00
- $180.00
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Blue
Natural Gemstones – Loose Precious & Semi-Precious Gemstones
Explore a range of natural gemstones at Gemstones Island. The gemstones that are available in form have a beautiful mix of colors, cuts, sizes and natural features. These gemstones are perfect for people who love collecting for those who're interested in gemstones and for making custom jewelry.
There are precious gemstones like diamond, ruby, sapphire and emerald. There are also types of semi-precious gemstones. The collection has some of the beautiful and interesting stones that nature has to offer. If you want to buy gemstones if you are searching for a special colored gemstone or if you need a loose gemstone, for jewelry you will find natural stones that are chosen because of their beauty and unique qualities.
Explore Different Types of Natural Gemstones
Our natural gemstone collection contains stones, each prized for its unique color, look and natural beauty. Explore rubies, elegant sapphires, lush green emeralds, calming aquamarines, rich purple amethysts, warm topaz, colorful garnets, bright peridot, captivating opals, golden citrine, deep blue lapis lazuli, luminous moonstones, rare tanzanite, ancient amber and more.
Precious Gemstones
Discover some of the world's most sought-after precious gemstones, including:
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Diamond – Known for its exceptional brilliance and timeless appeal.
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Ruby Gemstone – Admired for its rich red color and vibrant appearance.
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Sapphire Gemstone – Available in beautiful shades, including classic blue and other natural colors.
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Emerald Gemstone – Celebrated for its distinctive and captivating green color.
These classic precious gemstones are popular choices for collectors and custom jewelry creations.
Colorful Semi-Precious Gemstones
Our collection also includes a variety of semi-precious gemstones that have amazing colors and natural features. From the blue shades of aquamarine to the deep purple of amethyst each gemstone has its own special charm.
Look at topaz, garnet, peridot, opal, citrine, lapis lazuli, moonstone, tanzanite, amber and many lovely natural loose gemstones. There are colors, shapes and cuts to choose from and these stones are perfect, for gemstone collections and one-of-a-kind jewelry designs.
Loose Gemstones for Jewelry and Collections
Do you want gemstones for jewelry? Our collection holds gemstones in cuts and shapes giving great choices for custom rings, pendants, earrings and other fine jewelry designs.
Every loose gemstone possesses its own specific traits, such as differences in color, clarity, inclusions and natural formation. These special features add to the uniqueness and beauty of each stone.
If you are looking for a colored gemstone, a rare addition to your collection or a natural stone, for a custom jewelry project Gemstones Island presents a wide range of gemstones for sale to discover.
Why Explore Gemstones at Gemstones Island?
At Gemstones Island we have a growing collection of gemstones and mineral samples that are picked because they have special beauty and personality. Our assortment has types of gemstones different colors, places they come from ways they are cut and sizes so that people with different tastes can find something they like.
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Wide selection of gemstones
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Precious and semi-precious gemstones
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Beautiful colored gemstones
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Loose gemstones for custom jewelry
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Unique and rare gemstone options
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Different cuts, shapes and sizes
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Good, for collectors and people who love jewelry
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Gemstone certification available when asked
Find Your Perfect Natural Gemstone
Whether you are interested, in the brilliance of a diamond the deep color of a ruby, the elegance of a sapphire the lush beauty of an emerald or the distinctive character of a colored stone explore our collection to discover the right gemstone for your needs.
Browse our selection of gemstones for sale and discover loose precious and semi-precious gemstones for jewelry making, collecting, gifting and personal enjoyment.


























