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Home Gemstones Gemstones By Shape Cabochon Gemstones

Natural Cabochon Gemstones

Browse our collection of natural cabochon gemstones, featuring smooth domed cuts perfect for jewelry and gemstone collecting.

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0.04ct Natural Black Diamond, Square, Opaque, Photo A

0.04ct Natural Black Diamond, Square, Opaque

Diamond

0.04ct1 pc
$ 19.92
2 x 1.7 mm
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4.79ctw Natural Medium Green Peridot, Oval, VS, Photo A

4.79ctw Natural Medium Green Peridot, Oval, VS

Peridot

4.79ct total4 pcs
$ 52.48
7.9 x 5.7 mm
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3.57ctw Natural Warm Brown Smoky Quartz, Round, VS, Photo A

3.57ctw Natural Warm Brown Smoky Quartz, Round, VS

Smoky Quartz

3.57ct total2 pcs
$ 7.82
8 mm (calibrated)
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20.54ctw Natural Multicolor Fossil Coral, Oval, Opaque, Photo A

20.54ctw Natural Multicolor Fossil Coral, Oval, Opaque

Fossil Coral

20.54ct total2 pcs
$ 22.05
18 x 13 mm (calibrated)
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0.83ct Natural Purple-Red Spinel, Octagon / Emerald Cut, SI, Photo A
Spinel Product Video (754467)

0.83ct Natural Purple-Red Spinel, Octagon / Emerald Cut, SI

Spinel

0.83ct1 pc
$ 172.23
8.1 x 4.4 mm
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2.24ctw Natural Medium Violet Amethyst, Octagon / Emerald Cut, Transparent, Photo A

2.24ctw Natural Medium Violet Amethyst, Octagon / Emerald Cut, Transparent

Amethyst

2.24ct total2 pcs
$ 13.39
7 x 5 mm (calibrated)
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0.29ct Natural Jam Red Ruby, Round, SI-I1, Photo A

0.29ct Natural Jam Red Ruby, Round, SI-I1

Ruby

0.29ct1 pc
$ 95.63
3.8 mm
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2.61ct Natural Black Star Diopside, Oval, Opaque, Photo A

2.61ct Natural Black Star Diopside, Oval, Opaque

Star Diopside

2.61ct1 pc
$ 13.00
8 x 6 mm (calibrated)
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1.75ctw Natural Yellowish Green Peridot, Oval, VVS-VS, Photo A

1.75ctw Natural Yellowish Green Peridot, Oval, VVS-VS

Peridot

1.75ct total2 pcs
$ 24.40
7 x 5 mm (calibrated)
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10.26ct Natural Multicolor Boulder Opal, Fancy, Opaque, Photo A

10.26ct Natural Multicolor Boulder Opal, Fancy, Opaque

Boulder Opal

10.26ct1 pc
$ 51.09
19.2 x 10.5 mm
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3.42ctw Natural Multicolor Labradorite, Round, Translucent, Photo A

3.42ctw Natural Multicolor Labradorite, Round, Translucent

Labradorite

3.42ct total2 pcs
$ 8.31
7 mm (calibrated)
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1.39ct Natural Lively Green Tourmaline, Oval, VS, Photo A

1.39ct Natural Lively Green Tourmaline, Oval, VS

Tourmaline

1.39ct1 pc
$ 193.82
8 x 6 mm (calibrated)
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16.57ctw Natural Multicolor Agate, Cushion, Transparent, Photo A

16.57ctw Natural Multicolor Agate, Cushion, Transparent

Agate

16.57ct total2 pcs
$ 68.77
15 x 13.5 mm
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0.54ct Natural Multicolor Opal, Oval, Opaque, Photo A

0.54ct Natural Multicolor Opal, Oval, Opaque

Opal

0.54ct1 pc
$ 16.14
7.1 x 5.2 mm
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1.75ct Natural Multicolor Labradorite, Pear Shape, Translucent, Photo A

1.75ct Natural Multicolor Labradorite, Pear Shape, Translucent

Labradorite

1.75ct1 pc
$ 3.88
9 x 6 mm (calibrated)
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2.57ct Natural Multicolor Opal, Oval, Translucent, Photo A

2.57ct Natural Multicolor Opal, Oval, Translucent

Opal

2.57ct1 pc
$ 64.63
11 x 9 mm (calibrated)
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3.35ctw Natural Multicolor Opal, Square, Transparent, Photo A

3.35ctw Natural Multicolor Opal, Square, Transparent

Opal

3.35ct total30 pcs
$ 23.79
4 x 4 mm (calibrated)
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1.75ctw Natural Sky Blue Topaz, Pear Shape, VS, Photo A

1.75ctw Natural Sky Blue Topaz, Pear Shape, VS

Topaz

1.75ct total2 pcs
$ 9.59
7 x 5 mm (calibrated)
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33.61ct Natural Medium Green Amazonite, Pear Shape, Opaque, Photo A

33.61ct Natural Medium Green Amazonite, Pear Shape, Opaque

Amazonite

33.61ct1 pc
$ 26.78
29.8 x 25.8 mm
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1.26ct Natural Clear White Sillimanite Cat's Eye, Oval, Transparent, Photo A

1.26ct Natural Clear White Sillimanite Cat's Eye, Oval, Transparent

Sillimanite Cat's Eye

1.26ct1 pc
$ 3.93
7.5 x 4.9 mm
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2.19ctw Natural Rose Pink Tone Morganite, Pear Shape, VVS-VS, Photo A
Morganite Product Video (460763)

2.19ctw Natural Rose Pink Tone Morganite, Pear Shape, VVS-VS

Morganite

2.19ct total4 pcs
$ 191.95
7.8 x 4.1 mm
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6.13ct Natural Medium Green Quartz Cat's Eye, Oval, Opaque, Photo A

6.13ct Natural Medium Green Quartz Cat's Eye, Oval, Opaque

Quartz Cat's Eye

6.13ct1 pc
$ 20.15
12 x 10 mm (calibrated)
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1.14ct Natural Multicolor Opal, Oval, Translucent, Photo A

1.14ct Natural Multicolor Opal, Oval, Translucent

Opal

1.14ct1 pc
$ 56.21
9 x 7 mm (calibrated)
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0.64ct Natural Golden Orange Sapphire, Cushion, VVS-VS, Photo A

0.64ct Natural Golden Orange Sapphire, Cushion, VVS-VS

Sapphire

0.64ct1 pc
$ 34.77
4.5 x 4.5 mm
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0.86ct Natural Clear White Sillimanite Cat's Eye, Oval, Transparent, Photo A

0.86ct Natural Clear White Sillimanite Cat's Eye, Oval, Transparent

Sillimanite Cat's Eye

0.86ct1 pc
$ 3.43
6.8 x 4.5 mm
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58.04ct Natural Deep Violet Charoite, Baguette, Opaque, Photo A
Charoite Product Video (434935)

58.04ct Natural Deep Violet Charoite, Baguette, Opaque

Charoite

58.04ct1 pc
$ 95.38
44.6 x 19 mm
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38.55ct Natural Multicolor Jasper, Oval, Opaque, Photo A

38.55ct Natural Multicolor Jasper, Oval, Opaque

Jasper

38.55ct1 pc
$ 52.79
35.4 x 21.4 mm
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5.42ctw Natural Multicolor Labradorite, Round, Translucent, Photo A

5.42ctw Natural Multicolor Labradorite, Round, Translucent

Labradorite

5.42ct total2 pcs
$ 13.16
8 mm (calibrated)
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5.96ct Natural Cornflower Blue Sapphire, Oval, VVS-VS, Photo A
Sapphire Product Video (439687)

5.96ct Natural Cornflower Blue Sapphire, Oval, VVS-VS

Sapphire

5.96ct1 pc
$ 15,236.14
12 x 10 mm (calibrated)
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4.80ct Natural Light Royal Purple Pink Kunzite, Cushion, VS, Photo A

4.80ct Natural Light Royal Purple Pink Kunzite, Cushion, VS

Kunzite

4.80ct1 pc
$ 119.52
10 x 8 mm (calibrated)
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17.37ct Natural White Rose Quartz, Flower Cut, Transparent, Photo A

17.37ct Natural White Rose Quartz, Flower Cut, Transparent

Rose Quartz

17.37ct1 pc
$ 38.06
21.5 x 21.5 mm
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2.46ctw Natural Medium Yellow Sapphire, Round, VVS-VS, Photo A

2.46ctw Natural Medium Yellow Sapphire, Round, VVS-VS

Sapphire

2.46ct total4 pcs
$ 161.84
5 mm (calibrated)
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Why Buy Cabochon Gemstones from GemSelect?

Natural Cabochon Gemstones

Our natural cabochon gemstones are carefully selected for color, quality and beauty. The smooth domed surface highlights the natural patterns and optical effects of many gems, making cabochons ideal for unique jewelry designs.

Cabochon Gemstones Online

Buy cabochon gemstones online at GemSelect with confidence. We offer a wide selection of loose cabochon gems including opal, moonstone, turquoise, labradorite and many more, all available with secure checkout and worldwide shipping.

Loose Cabochon Gemstones for Jewelry Making

What Are Cabochon Cut Gemstones?

Cabochon cut gemstones feature a polished, rounded top with a flat or slightly domed base instead of facets. This classic gemstone cut is used to emphasize color, transparency, and special optical effects such as star stones, chatoyancy, and color play.

Popular Cabochon Gemstones

Many gemstones are traditionally cut as cabochons. Popular choices include opal cabochons with vibrant color play, moonstone cabochons displaying adularescence, turquoise cabochons prized for their rich color, and star sapphires that show asterism.

Cabochon Stones for Jewelry

Cabochon stones are widely used in rings, pendants, bracelets and earrings. Their smooth surface and bold appearance make them ideal for bezel settings and statement jewelry pieces.

Unique Optical Effects in Cabochon Gems

The cabochon cut is essential for gemstones that display optical phenomena. Star sapphires, star rubies, cat's eye chrysoberyl and many moonstones require the cabochon shape to reveal these special visual effects.

Loose Cabochon Gemstones for Collectors

Loose cabochon gemstones are popular among collectors because they often showcase natural patterns, inclusions, and color zoning that would be hidden in faceted stones. Each gem has its own distinctive appearance.

Choosing the Right Cabochon Gemstone

When selecting a cabochon gemstone, consider color saturation, surface polish, symmetry and dome height. High quality cabochons have even curvature, excellent polish and vibrant natural color.

Learn more about gemstone cuts and shapes on our Gemstone Cutting Information Page.

FAQs

What is a cabochon gemstone?

A cabochon gemstone is a stone that has been polished into a smooth, rounded shape without facets. It typically has a domed top and flat base.

Why are some gemstones cut as cabochons instead of faceted?

Some gemstones display special optical effects or natural patterns that are best shown with a cabochon cut. Others may not be transparent enough for faceting.

Which gemstones are commonly cut as cabochons?

Common cabochon gemstones include opal, turquoise, moonstone, labradorite, chrysoberyl, star sapphire, jade, and many opaque or translucent stones.

Are cabochon gemstones suitable for jewelry?

Yes, cabochon gemstones are widely used in jewelry. Their smooth surface works well with bezel settings and bold jewelry designs.

Can I buy loose cabochon gemstones at GemSelect?

Yes, GemSelect offers a large selection of loose cabochon gemstones in many sizes, colors and gemstone varieties suitable for jewelry making or collecting.

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 9 star ratings

Very good and simple exchange

Posted By Waylon in March, 2026
Source: Bizrate

Overall Rating -> 8 star ratings

I visited several online loose stone shops trying to find rare stones. I finally found one that I've been looking for here, and very satisfied. Looking forward to receive the item in 3 weeks.

Posted By Atsu in December, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Will know more once order received

Posted By Jim in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

My experience has always been fantastic. Today I saved 6 gems to email a customer looking for a particular color blend to fit into an east west setting, so her options were limited, but we found one she wanted, deleted all the others in the cart and order the gem she selected. It was helpful to be able to put them in the cart so I could save them until she selected the one she wanted without having to research all of them again.

Posted By RJ in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.

Posted By Tim W in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Over pretty well experience the your website no complaints about it very easy reliable service provided

Posted By Blas in January, 2026
Source: Bizrate
Enlarged Gemstone Image