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Home Gemstones Gemstones By Weight 1 ct Gemstones

1 Carat Gemstones

Browse our selection of natural 1 carat gemstones, ideal for elegant jewelry designs and collectors seeking perfectly balanced gem sizes.

1 ct Gemstones Weight
1 ct Gemstones Size
1 ct Gemstones Clarity
1 ct Gemstones Price
1 ct Gemstones Treatment

Size Explained

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Yellow 1 ct Gemstones
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1.04ct White Rainbow Moonstone, Round, Transparent

7 mm (calibrated)

$ 33.15

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1.05ct Blue Kyanite, Oval, VS-SI

7 x 5 mm (calibrated)

$ 23.01

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1.00ct Purple Sapphire, Cushion, VS

7 x 5 mm (calibrated)

$ 328.68

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1.02ct Green Tourmaline, Emerald Cut, VS

15 x 3.3 mm

$ 27.94

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2.06ctw Blue Kyanite, Oval, SI

7 x 5 mm (calibrated)

$ 38.99

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2.04ctw Red Pyrope Garnet, Marquise, VVS-VS

10 x 5 mm

$ 17.88

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1.00ct Green Sapphire, Cushion, VVS-VS

7 x 5 mm (calibrated)

$ 79.68

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1.09ct Yellow Sapphire, Oval, VS-SI

7.2 x 5.5 mm

$ 45.92

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1.00ct Green Tourmaline, Emerald Cut, VVS-VS

5.5 x 5.2 mm

$ 49.80

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1.00ct Red Ruby, Round, VS

5.5 mm (calibrated)

$ 89.64

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1.06ct Red Ruby, Round, VS-SI

5.5 mm (calibrated)

$ 364.30

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2.15ctw White Zircon, Round, VS

6 mm (calibrated)

$ 33.96

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1.01ct Yellow Beryl, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 20.12

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1.04ct Purple Rhodolite Garnet, Oval, VS-SI

7 x 5 mm (calibrated)

$ 27.62

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1.00ct Multicolor Opal, Oval, Transparent

8.4 x 5.5 mm

$ 20.75

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1.06ct Yellow Citrine, Trillion, VS

7 x 7 mm (calibrated)

$ 6.62

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1.01ct Green Peridot, Emerald Cut, VS

7 x 5 mm (calibrated)

$ 16.09

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1.00ct Multicolor Opal, Oval, Transparent

9.6 x 6.3 mm

$ 29.88

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2.08ctw Yellow Tourmaline, Oval, VS

7.8 x 5.6 mm

$ 82.87

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1.02ct Orange Hessonite Garnet, Round, VS

5.5 mm (calibrated)

$ 17.29

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1.05ct Brown Color-Change Garnet, Oval, VVS-VS

6.7 x 5.4 mm

$ 83.88

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1.00ct Blue Kyanite, Round, SI

6 mm (calibrated)

$ 24.90

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4.30ctw White Zircon, Oval, VVS-VS

7 x 5 mm (calibrated)

$ 25.68

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2.07ctw Yellow Sillimanite, Oval, VVS

8 x 6 mm (calibrated)

$ 72.16

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Why Buy 1 Ct Gemstones from GemSelect?

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.

Loose 1 Carat Gemstones for Jewelry and Collectors

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 -> 9 star ratings

It was fine . Wish there had been more round stones to select from

Posted By Emm in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

good navigation and simple interface.

Posted By Dave in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I was able to find what I've been looking for.

Posted By Tree Dog in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Found a rock that met my need. Bought it!

Posted By Skot in May, 2026
Source: Bizrate

Overall Rating -> 8 star ratings

It was a good interaction I got a good gemstone for cheap

Posted By Jon in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

They have a wonderful selection of gems of all sorts, shapes, cuts, and quality. I am very particular about the quality of stones I buy, and found many with VVS clarity and excellent cut and polish. I am thrilled with each of the stones I purchased, and would definitely recommend GemSelect to everyone.

Posted By Debsarabs in February, 2026
Source: Bizrate
Enlarged Gemstone Image