1 Carat Gemstones
Browse our selection of natural 1 carat gemstones, ideal for elegant jewelry designs and collectors seeking perfectly balanced gem sizes.
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Bi-color
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Black 1 ct Gemstones
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Blue 1 ct Gemstones
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Brown 1 ct Gemstones
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Golden 1 ct Gemstones
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Gray 1 ct Gemstones
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Green 1 ct Gemstones
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Multicolor 1 ct Gemstones
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Orange 1 ct Gemstones
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Pink 1 ct Gemstones
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Purple 1 ct Gemstones
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Red 1 ct Gemstones
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Turquoise 1 ct Gemstones
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Violet 1 ct Gemstones
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White 1 ct Gemstones
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Yellow 1 ct Gemstones
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
1.04ct Medium-Dark Orange Hessonite Garnet, Pear Shape, VS-SI
7 x 5 mm (calibrated)
$ 23.34
1.04ct Translucent White Sillimanite Cat's Eye, Oval, Transparent
7 x 4.7 mm
$ 3.91
1.01ct Light Yellow Color-Change Diaspore, Cushion, VVS-VS
10 x 4.4 mm
$ 42.66
1.09ct Navy Blue Kyanite, Oval, SI
7 x 5 mm (calibrated)
$ 28.78
4.04ctw Swiss Blue Topaz, Oval, Transparent
7 x 5 mm (calibrated)
$ 37.33
2.13ctw Sky Blue Topaz, Marquise, VVS-VS
10.1 x 5.1 mm
$ 19.68
1.07ct Warm White Sillimanite Cat's Eye, Oval, Transparent
6.5 x 4.8 mm
$ 4.96
1.09ct Very Light Golden-Yellow Color-Change Diaspore, Pear Shape, VVS-VS
10.8 x 5 mm
$ 46.04
1.07ct Deep Plum Spinel, Oval, VVS
7.1 x 5.4 mm
$ 132.80
1.03ct Warm Brown Color-Change Garnet, Oval, VVS
6.4 x 5.3 mm
$ 99.14
1.07ct Multicolor Opal, Oval, Transparent
9 x 7 mm (calibrated)
$ 59.32
2.16ctw Deep Red Pyrope Garnet, Marquise, VVS-VS
9.9 x 5 mm
$ 22.81
2.18ctw Sky Blue Topaz, Oval, VVS-VS
7 x 5 mm (calibrated)
$ 14.44
1.08ct Pinkish Iris Violet Amethyst, Square, VVS
6 x 6 mm (calibrated)
$ 10.37
1.07ct Lively Green Peridot, Emerald Cut, VS
7 x 5 mm (calibrated)
$ 20.54
1.03ct Multicolor Black Opal, Pear Shape, Opaque
8.7 x 7.4 mm
$ 31.82
1.00ct Pale-Greenish Grey Cat's Eye Alexandrite, Oval, Opaque
5.6 x 4.4 mm
$ 250.00
1.08ct Earthy Green Tourmaline, Emerald Cut, VS
15.9 x 3.5 mm
$ 34.21
1.02ct Light Yellow Chrysoberyl, Pear Shape, VVS
7.6 x 5.4 mm
$ 143.22
5.06ctw Medium Orange-Gold Citrine, Heart, VS
7 x 7 mm (calibrated)
$ 40.08
1.08ct Earthy Green Tourmaline, Emerald Cut, VVS-VS
16.5 x 2.8 mm
$ 34.21
1.05ct Multicolor Opal, Oval, Opaque
8 x 6 mm (calibrated)
$ 37.80
1.00ct Very Light Grey Sillimanite Cat's Eye, Oval, Transparent
6.5 x 4.2 mm
$ 3.96
1.07ct Medium Purple Rhodolite Garnet, Oval, VS
7 x 5 mm (calibrated)
$ 44.94
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Why Buy 1 Ct Gemstones from GemSelect?
- Trusted Worldwide Since 2003
- Supplying natural gemstones to jewelers and collectors in 120+ countries
- Verified natural gemstones
- View All GemSelect Reviews on Bizrate
- Secure checkout and insured worldwide delivery
- 30-day returns and satisfaction guarantee
Natural 1 Carat Gemstones
Our natural 1 carat gemstones are carefully selected for quality, color and brilliance. A one-carat gem offers the perfect balance between size and wearability, making it a popular choice for rings, pendants and earrings.
Loose 1 Carat Gemstones Online
Shop loose 1 carat gemstones online at GemSelect with confidence. Our inventory includes a wide range of natural gems such as sapphire, ruby, garnet, tourmaline and many others, all photographed individually for accurate selection.
Why Choose 1 Carat Gemstones?
One-carat gemstones are a classic choice for jewelry. They provide noticeable size without being overly large, making them perfect for engagement rings, pendants or everyday jewelry pieces.
1 ct Gemstones for Rings and Jewelry
Many jewelers prefer 1 ct gemstones because they fit well into common jewelry settings. From brilliant round cuts to elegant oval and cushion shapes, these gems offer versatility for custom jewelry design.
Wide Variety of 1 Carat Gem Types
At GemSelect you can find 1 carat stones in many gem varieties including sapphire, ruby, spinel, aquamarine, tourmaline, topaz and garnet. Each gemstone has unique colors and characteristics to suit different styles and budgets.
Faceted and Cabochon 1 Carat Gems
Our collection includes both faceted stones for maximum sparkle and smooth cabochon gemstones for a softer, classic appearance. This variety allows designers to choose the best style for their jewelry projects.
Calibrated 1 Carat Gemstones
Many of our 1 carat gemstones are available in calibrated sizes, making them easier to mount into standard jewelry settings. This helps jewelers and designers create precise and professional-looking pieces.
Certified and Natural Gemstones
All gemstones at GemSelect are natural stones, and any treatments are fully disclosed. We focus on transparency and accurate gem information so buyers can shop with confidence.
Learn more about gemstone properties and buying tips on our Gemstone Information Pages.
FAQs
What does 1 carat mean in gemstones?
A carat is a unit of weight used for gemstones. One carat equals 0.2 grams. The physical size of a 1 carat gemstone can vary depending on the gem type and its density.
Are 1 carat gemstones good for rings?
Yes, 1 carat gemstones are a popular size for rings because they provide noticeable presence while remaining comfortable for everyday wear.
Which gemstones are available in 1 carat size?
Many gemstones are available in 1 carat size, including sapphire, ruby, spinel, garnet, tourmaline, aquamarine, topaz and many others.
Does a 1 carat gemstone always have the same size?
No. Carat measures weight, not size. Different gemstones have different densities, so a 1 carat sapphire may appear slightly smaller or larger than a 1 carat aquamarine.
Are your 1 carat gemstones natural?
Yes, GemSelect specializes in natural gemstones. Any treatments are clearly disclosed so customers know exactly what they are purchasing.
GemSelect Certified Store Reviews
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10 
the selection is good as are the prices
Overall Rating -> 10
It was all good
Overall Rating -> 9 
The checkout said the my ccv was invalid. i had to use another card.
Overall Rating -> 10
I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring
Overall Rating -> 10
So far, my experience was great...Thanks
Overall Rating -> 10
Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.
