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round cut lab grown emerald 1
lab grown emeralds
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Round Cut Lab Grown Emerald

$27.00 – $216.00
5 mm
5.5 mm
+8
6 mm
6.5 mm
7 mm
7.5 mm
8 mm
8.5 mm
9 mm
10 mm
Select options This product has multiple variants. The options may be chosen on the product page
round cut lab grown ruby
round cut lab grown ruby 1
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Round Cut Lab Grown Ruby

$11.70 – $156.00
4 mm
5 mm
+8
6 mm
6.5 mm
7 mm
7.5 mm
8 mm
8.5 mm
9 mm
10 mm
Select options This product has multiple variants. The options may be chosen on the product page
round cut lab grown royal blue sapphire
round cut lab grown sapphires
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Round Cut Lab Grown Royal Blue Sapphire

$28.50 – $342.00
5 mm
6 mm
+7
6.5 mm
7 mm
7.5 mm
8 mm
9 mm
10 mm
12 mm
Select options This product has multiple variants. The options may be chosen on the product page
round cut lab grown pink morganite
round cut lab grown sapphires
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Round Cut Lab Grown Pink Morganite

$19.50 – $234.00
5 mm
6 mm
+7
6.5 mm
7 mm
7.5 mm
8 mm
9 mm
10 mm
12 mm
Select options This product has multiple variants. The options may be chosen on the product page
pear cut lab grown cobalt blue sapphire
pear cut lab grown sapphires
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Pear Cut Lab Grown Cobalt Blue Sapphire

$43.20 – $324.00
7 x 5 mm
8 x 6 mm
+8
8 x 5 mm
9 x 7 mm
9 x 6 mm
10 x 8 mm
10 x 7 mm
11 x 9 mm
12 x 10 mm
14 x 10 mm
Select options This product has multiple variants. The options may be chosen on the product page
cushion cut lab grown light padparadscha sapphire
cushion cut lab grown sapphires
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Cushion Cut Lab Grown Light Padparadscha Sapphire

$34.20 – $285.00
5 x 5 mm
6 x 6 mm
+4
7 x 7 mm
8 x 8 mm
9 x 9 mm
10 x 10 mm
Select options This product has multiple variants. The options may be chosen on the product page
asscher cut lab grown cornflower blue sapphire
asscher cut lab grown sapphires
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Asscher Cut Lab Grown Cornflower Blue Sapphire

$34.20 – $285.00
5 x 5 mm
6 x 6 mm
+4
7 x 7 mm
8 x 8 mm
9 x 9 mm
10 x 10 mm
Select options This product has multiple variants. The options may be chosen on the product page
cushion cut lab grown tourmaline red sapphire
cushion cut lab grown sapphires
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Cushion Cut Lab Grown Tourmaline Red Sapphire

$34.20 – $285.00
5 x 5 mm
6 x 6 mm
+4
7 x 7 mm
8 x 8 mm
9 x 9 mm
10 x 10 mm
Select options This product has multiple variants. The options may be chosen on the product page
emerald cut lab grown green sapphire
emerald cut lab grown sapphires
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Emerald Cut Lab Grown Green Sapphire

$36.00 – $450.00
6 x 4 mm
7 x 5 mm
+6
8 x 6 mm
9 x 7 mm
10 x 8 mm
11 x 9 mm
12 x 10 mm
14 x 10 mm
Select options This product has multiple variants. The options may be chosen on the product page
oval cut lab grown purple blue sapphire
oval cut lab grown sapphires
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Oval Cut Lab Grown Purple Blue Sapphire

$40.00 – $640.00
6 x 4 mm
7 x 5 mm
+6
8 x 6 mm
9 x 7 mm
10 x 8 mm
11 x 9 mm
12 x 10 mm
14 x 10 mm
Select options This product has multiple variants. The options may be chosen on the product page
long cushion cut lab grown pigeon blood sapphire
long cushion cut lab grown sapphires
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Long Cushion Cut Lab Grown Pigeon Blood Sapphire

$31.20 – $390.00
6 x 4 mm
7 x 5 mm
+6
8 x 6 mm
9 x 7 mm
10 x 8 mm
11 x 9 mm
12 x 10 mm
14 x 10 mm
Select options This product has multiple variants. The options may be chosen on the product page
heart cut lab grown pink sapphire
heart cut lab grown sapphires
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Heart Cut Lab Grown Pink Sapphire

$19.50 – $156.00
5 x 5 mm
6 x 6 mm
+5
6.5 x 6.5 mm
7 x 7 mm
8 x 8 mm
9 x 9 mm
10 x 10 mm
Select options This product has multiple variants. The options may be chosen on the product page
asscher cut lab grown dark padparadscha sapphire
asscher cut lab grown sapphires
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Asscher Cut Lab Grown Dark Padparadscha Sapphire

$34.20 – $285.00
5 x 5 mm
6 x 6 mm
+4
7 x 7 mm
8 x 8 mm
9 x 9 mm
10 x 10 mm
Select options This product has multiple variants. The options may be chosen on the product page
heart cut lab grown tourmaline red sapphire
heart cut lab grown sapphires
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Heart Cut Lab Grown Tourmaline Red Sapphire

$30.00 – $240.00
5 x 5 mm
6 x 6 mm
+5
6.5 x 6.5 mm
7 x 7 mm
8 x 8 mm
9 x 9 mm
10 x 10 mm
Select options This product has multiple variants. The options may be chosen on the product page
asscher cut lab grown dark pink sapphire
asscher cut lab grown sapphires
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Asscher Cut Lab Grown Dark Pink Sapphire

$23.40 – $195.00
5 x 5 mm
6 x 6 mm
+4
7 x 7 mm
8 x 8 mm
9 x 9 mm
10 x 10 mm
Select options This product has multiple variants. The options may be chosen on the product page
asscher cut lab grown green sapphire
asscher cut lab grown sapphires
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Asscher Cut Lab Grown Green Sapphire

$34.20 – $285.00
5 x 5 mm
6 x 6 mm
+4
7 x 7 mm
8 x 8 mm
9 x 9 mm
10 x 10 mm
Select options This product has multiple variants. The options may be chosen on the product page
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Loose Gemstones in Every Color and Cut

Explore the beauty and variety of loose gemstones at Carat Island. Whether you’re a jeweler, collector, or jewelry designer, our curated selection offers something for every vision — from classic natural stones to vibrant lab-created gems.

We carry a full spectrum of gemstones in popular shapes like round, oval, emerald, cushion, pear, and more. Choose from a wide variety of colors, sizes, and clarities to suit your budget and project needs. Our collection includes popular stones like sapphire, emerald, ruby, garnet, spinel, topaz, and zircon — in both natural and lab-grown forms.

At Carat Island, quality and sourcing transparency are core to our values. While many of our gemstones are lab-created or synthetic — offering exceptional brilliance at accessible prices — we also feature a growing selection of natural stones for clients seeking earth-mined options.

Whether you’re shopping for a custom engagement ring, restocking for your jewelry business, or building your gem collection, you’ll find loose gemstones here that blend beauty, ethics, and value. We offer worldwide shipping and responsive support for all orders.

Frequently Asked Questions (FAQs)

Q1: What are loose gemstones?

Loose gemstones are stones that have been cut and polished but not yet set into jewelry. They’re ideal for custom designs, collecting, or investment purposes.

Q2: Do you sell both natural and lab-grown gemstones?

Yes! We offer a mix of natural gemstones and lab-created gems. Each product clearly indicates its origin, so you can choose what fits your values and preferences.

Q3: Are lab-grown gemstones real?

Absolutely. Lab-grown gemstones have the same chemical and physical properties as their natural counterparts. They offer exceptional quality and brilliance, often at a more affordable price.

Q4: What types of cuts and shapes do you offer?

We offer all popular gemstone shapes including round, oval, cushion, emerald, pear, marquise, princess, and more. Filter by cut on our collection page to find your ideal gem.

Q5: Can I use these gemstones for custom jewelry?

Yes! All our loose gemstones are suitable for custom jewelry. If you already have a design in mind or need help bringing it to life, we also offer jewelry customization services.

Q6: Do you ship internationally?

Yes, we ship worldwide. Every order is securely packed and comes with tracking information. Delivery times vary by country, but we aim for safe and prompt shipping.

Q7: How do I know if a gemstone is genuine?

Each listing includes detailed information about the gemstone’s type, cut, origin, and authenticity. We are committed to transparent sourcing and labeling — whether natural, lab-grown, or treated.