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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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3.29 Carats Natural Green Sapphire Oval Cut Stone From Madagascar
Discover the rare beauty of this 3.29-carat natural green sapphire from Madagascar, expertly cut in a classic oval shape. Measuring 9.62 × 7.39 × 5.02 mm, this untreated loose gemstone displays a rich green color and exceptional brilliance. Certified by the American International Gem...- $350.00
- $350.00
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2.20 Carats Natural Loose Oval Shape Sapphire - Loose Precious Gemstones For Jewelry Making
Discover the timeless beauty of this 2.20-carat natural blue sapphire, expertly cut in an elegant oval shape. Measuring 8.8 × 7.8 × 3.7 mm, this untreated loose gemstone displays a rich blue color and exceptional brilliance, making it an excellent choice for custom rings,...- $400.00
- $400.00
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4.11 Carats Step Cut Natural Swat Emerald Stone | Loose Precious Gemstone For Jewelry
Own a magnificent 4.11-carat natural emerald from the renowned Swat Valley of Pakistan, featuring a vibrant green color and a refined emerald (step) cut. Measuring 9.37 × 9.15 × 6.51 mm, this untreated loose gemstone is certified by the Galaxy Gemological Institute (GGI), making...- $1,000.00
- $1,000.00
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4.61 Carats Natural Cushion Shape Purplish Red Mozambique Ruby With Complete Certification
Own a stunning 4.61-carat natural ruby from Mozambique, showcasing a rich purplish red color and an elegant cushion cut. Measuring 8.86 × 7.70 × 6.54 mm, this untreated ruby offers exceptional natural beauty and is accompanied by an American Gem Analysis Lab (AGA) certificate,...- $3,200.00
- $3,200.00
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3.30 Carats Cushion Cut Mint Green Tourmaline - Natural Loose Afghan Gemstone For Jewelry
Discover the fresh beauty of this 3.30-carat natural mint green tourmaline from Afghanistan. Expertly cut in a classic cushion shape, this untreated loose gemstone measures 8.7 × 8.1 × 5.8 mm and showcases exceptional brilliance, making it an ideal choice for custom rings, pendants,...- $500.00
- $500.00
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3.70 Carats Natural Bluish Green Tourmaline Baguette Cut Stone - Loose Afghan Gemstone
Showcase the elegance of this 3.70-carat natural tourmaline from Afghanistan, featuring a striking bluish green to green color and a sleek baguette cut. Measuring 14.4 × 6.3 × 4.2 mm, this untreated loose gemstone displays exceptional natural brilliance, making it an excellent choice for...- $500.00
- $500.00
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2.30 Carats Cushion Shape Natural Pink Tourmaline - Loose Gemstone For Jewelry Making
Enhance your jewelry collection with this 2.30-carat natural pink tourmaline from Afghanistan. Beautifully cut in a classic cushion shape, this untreated loose gemstone measures 8 × 5.9 × 5 mm and displays a vibrant natural pink color, making it an ideal choice for custom...- $400.00
- $400.00
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2.15 Carats Loupe Clean Bluish Green Tourmaline - Natural Emerald Shape Afghan Stone For Rings
Discover the natural beauty of this 2.15-carat bluish green tourmaline from Afghanistan, expertly cut in a classic emerald shape. Measuring 8.2 × 5.5 × 4.6 mm, this untreated loose gemstone showcases exceptional brilliance and vibrant color, making it an excellent choice for custom rings,...- $400.00
- $400.00
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3.65 Carats Natural Neon Mint Color Tourmaline Cushion Shape Stone - Loose Afghan Stone
Discover this beautiful 3.65-carat natural tourmaline from Afghanistan, expertly cut in a classic cushion shape. Measuring 12 × 6.1 × 5.0 mm, this untreated loose gemstone offers excellent brilliance and is a perfect choice for custom rings, pendants, or fine jewelry. A gemstone certificate...- $550.00
- $550.00
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6.20 Carat Loupe Clean Bluish Green Tourmaline Cushion Gemstone – Natural Afghan Stone For Jewelry
Make a statement with this impressive 6.20-carat natural tourmaline from Afghanistan, featuring a captivating bluish green color and a beautifully crafted cushion cut. Measuring 13.9 × 8 × 6 mm, this untreated loose gemstone showcases exceptional natural brilliance, making it an outstanding choice for...- $1,800.00
- $1,800.00
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2.65 Carats Natural Cushion Cut Green Seafoam Tourmaline - Loose Afghan Stone For Jewelry Making
Discover the refreshing beauty of this 2.65-carat natural seafoam green tourmaline from Afghanistan. Expertly cut in a classic cushion shape, this untreated loose gemstone measures 8.0 × 7.1 × 5.7 mm and displays excellent natural brilliance, making it an ideal choice for custom rings,...- $350.00
- $350.00
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1.90 Carats Cushion Cut Pink Tourmaline - Fine Gemstone For Jewelry
Add a vibrant touch to your jewelry collection with this 1.90-carat natural pink tourmaline from Afghanistan. Expertly cut in a classic cushion shape, this loose gemstone measures 6.8 × 6.5 × 5 mm and displays a beautiful natural pink color, making it an excellent...- $200.00
- $200.00
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2.50 Carats Natural Lagoon Color Tourmaline - Loose Emerald Cut Afghan Gemstone For Rings
Experience the natural beauty of this 2.50-carat tourmaline from Afghanistan, featuring a captivating green to bluish green color and a refined emerald cut. Measuring 9.5 × 5.5 × 5.1 mm, this untreated loose gemstone offers excellent brilliance and is an ideal choice for custom...- $350.00
- $350.00
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1.40 Carats Blue And Green Bicolor Tourmaline - Natural Loose Afghan Gemstone
Discover the distinctive charm of this 1.40-carat natural bicolor tourmaline from Afghanistan. Expertly cut in a sleek baguette shape, this untreated loose gemstone measures 9.2 × 4.3 × 3.6 mm and showcases a beautiful blend of natural colors, making it an excellent choice for...- $70.00
- $70.00
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2.10 Carats Natural Green Bicolor Tourmaline - Loose Stone For Jewelry Making
Admire the unique beauty of this 2.10-carat natural bicolor tourmaline from Afghanistan, expertly cut in a classic emerald shape. Measuring 10.8 × 5.6 × 3.5 mm, this untreated loose gemstone displays a striking blend of natural colors, making it an excellent choice for custom...- $120.00
- $120.00
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5.30 Carats Loupe Clean Bluish Green Tourmaline - Natural Loose Afghan Stone For rings
Discover the exceptional beauty of this 5.30-carat natural tourmaline from Afghanistan, featuring a striking green to bluish green color and a sophisticated emerald cut. Measuring 10.5 × 7.5 × 6.7 mm, this untreated loose gemstone offers remarkable brilliance and clarity, making it an ideal...- $800.00
- $800.00
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4.30 Carats Cushion Cut Orange Tourmaline From Afghanistan - Loose Gemstone For Jewelry Making
Showcasing warm and vibrant hues, this 4.30-carat natural orange and peach tourmaline from Afghanistan is beautifully cut in a classic cushion shape. Measuring 11 × 7.3 × 5.9 mm, this loose gemstone offers exceptional brilliance and is an excellent choice for custom rings, pendants,...- $600.00
- $600.00
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4.65 Carats Natural Bluish Green Tourmaline - Loose Bicolor Gemstone From Afghanistan
Make a statement with this 4.65-carat natural tourmaline from Afghanistan, featuring a captivating green to bluish green color and a beautifully proportioned cushion cut. Measuring 7.7 × 8.5 × 7.3 mm, this untreated loose gemstone showcases outstanding natural brilliance, making it an excellent choice...- $600.00
- $600.00
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2.35 Carats Cushion Cut Natural Blue Seafoam Tourmaline - Loose Afghan Gemstone For Jewelry
Discover the refreshing beauty of this 2.35-carat natural seafoam blue tourmaline from Afghanistan. Expertly cut into a cushion shape and measuring 7.3 × 6.7 × 5.5 mm, this untreated loose gemstone displays exceptional natural brilliance, making it an ideal choice for custom rings, pendants,...- $320.00
- $320.00
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2.25 Carats Pear Shape Pink Tourmaline - Loose Pink Stone For Rings
Add a vibrant touch to your jewelry collection with this 2.25-carat natural pink tourmaline from Afghanistan. Expertly cut into an elegant pear shape, this loose gemstone measures 8.2 × 7 × 5.5 mm and showcases a beautiful natural pink color, making it an excellent...- $220.00
- $220.00
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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.



























