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3 Carat Loose Gemstones

Browse our selection of natural 3 carat gemstones, perfect for fine jewelry and investment pieces.

3 ct Gemstones Weight
3 ct Gemstones Size
3 ct Gemstones Clarity
3 ct Gemstones Price
3 ct Gemstones Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color 3 ct Gemstones
Black 3 ct Gemstones
Blue 3 ct Gemstones
Brown 3 ct Gemstones
Golden 3 ct Gemstones
Gray
Green 3 ct Gemstones
Multicolor 3 ct Gemstones
Orange 3 ct Gemstones
Pink 3 ct Gemstones
Purple 3 ct Gemstones
Red 3 ct Gemstones
Turquoise 3 ct Gemstones
Violet 3 ct Gemstones
White 3 ct Gemstones
Yellow 3 ct Gemstones
Single
Pairs
Lots
Faceted
Cabochons
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3.44ct Violet Amethyst, Pear Shape, VVS

13 x 9.4 mm

$ 28.90

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3.07ct Multicolor Opal Triplet, Fancy, Opaque

15.1 x 8.8 mm

$ 92.10

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3.15ct White Topaz, Round, VS

8.5 mm (calibrated)

$ 24.95

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3.17ct Yellow Citrine, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 29.29

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3.16ct Multicolor Fire Agate, Fancy, Opaque

10 x 8 mm (calibrated)

$ 53.64

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3.31ct Yellow Citrine, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 27.80

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3.06ct Yellow Citrine, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 16.15

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3.25ct Blue Topaz, Marquise, VS

14.8 x 7 mm

$ 30.04

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3.01ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 25.28

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3.38ct Red Almandine Garnet, Pear Shape, VVS

12 x 8 mm (calibrated)

$ 152.10

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3.17ct Multicolor Mystic Quartz, Pear Shape, VS

12 x 8 mm (calibrated)

$ 11.41

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3.19ct Orange Sunstone, Round, Transparent

10 mm (calibrated)

$ 22.40

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3.09ct Yellow Citrine, Fancy, VVS-VS

8.2 x 7 mm

$ 28.55

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3.36ct Green Apatite, Emerald Cut, VS

8.4 x 8.1 mm

$ 164.76

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3.33ct Multicolor Mystic Quartz, Round, VVS-VS

10 mm (calibrated)

$ 23.98

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3.48ct Black Star Diopside, Round, Opaque

8 mm (calibrated)

$ 17.40

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3.10ct Green Malachite, Oval, Opaque

10 x 8 mm (calibrated)

$ 2.87

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3.13ct Blue Topaz, Emerald Cut, VVS-VS

8 x 8 mm (calibrated)

$ 29.29

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3.15ct Yellow Citrine, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 29.11

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3.44ct Yellow Citrine, Oval, VS

12 x 10 mm (calibrated)

$ 22.70

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3.45ct Brown Smoky Quartz, Baguette, VVS-VS

12 x 8 mm (calibrated)

$ 13.67

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3.30ct Red Zircon, Oval, VVS

9 x 7 mm (calibrated)

$ 159.72

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3.15ct Pink Morganite, Trillion, Transparent

10.4 x 9.7 mm

$ 41.58

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3.04ct Red Almandine Garnet, Pear Shape, VVS-VS

12 x 8 mm (calibrated)

$ 30.40

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Why Buy 3 Ct Gemstones from GemSelect?

Natural 3 Carat Gemstones

Our 3 carat gemstones are 100% natural and carefully selected for quality, color, and clarity, making them ideal for standout jewelry designs.

3 Carat Loose Gemstones for Sale

Explore a wide range of 3 carat loose gemstones available in popular varieties such as sapphire, ruby, tourmaline, and more, all ready for custom settings.

3 Carat Loose Gemstones for Jewelry

Best Uses for 3 Carat Gems

3 carat gems are ideal for statement rings, pendants, and high-end jewelry pieces, offering a noticeable size without becoming impractical for daily wear.

Faceted and Cabochon Options

Choose from faceted 3ct gemstones for brilliance and sparkle or cabochon cuts for smooth surfaces and unique visual appeal.

Color Variety in 3 Carat Stones

Our collection includes gemstones in a wide spectrum of colors, from vivid blues and reds to soft pastels and rare color-change varieties.

Calibrated 3 Carat Gemstones

Find calibrated stones that fit standard jewelry settings, helping jewelers and designers save time while ensuring precise results.

Investment-Grade Gemstones

Many 3 carat gemstones offer excellent value for collectors, combining desirable size with quality characteristics that can appreciate over time.

Wholesale 3 Carat Gemstones

We offer competitive pricing on bulk purchases of 3ct gemstones, ideal for jewelers, designers, and resellers seeking consistent supply.

Learn more about gemstone properties, grading, and selection on our Gemstone Information Page.

FAQs

Is a 3 carat gemstone considered large?

Yes, a 3 carat gemstone is considered a medium-to-large size, making it ideal for statement jewelry while still being wearable daily.

Which gemstones look best at 3 carats?

Sapphires, rubies, aquamarines, and tourmalines are popular choices, as their color and clarity are well showcased at 3 carats.

Are all 3 carat gemstones the same size?

No, size varies depending on the gemstone type and density. Two stones with the same carat weight can have different dimensions.

Are your 3 carat gemstones natural?

Yes, all gemstones are natural, with any treatments clearly disclosed to ensure full transparency.

Can I use a 3 carat gemstone for an engagement ring?

Absolutely, 3 carat gemstones are a popular choice for engagement rings, offering impressive size and visual impact.

Do you offer calibrated 3ct gemstones?

Yes, we stock calibrated sizes suitable for standard jewelry settings, making them easy to mount.

GemSelect Certified Store Reviews

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

Overall Rating -> 10 star ratings

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose 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 -> 9 star ratings

I did not realize these stones were of jewelry quality. They are really beautiful, just not what I was expecting which was more of a natural stone.

Posted By Jewelry Quality Stones in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Web site is very simple to navigate Selection is terrific

Posted By ToRa.62 in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great site for finding specific stones and sizes for individual pieces of jewelry

Posted By Designer in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the ability to choose from many options of shapes, gemstone type, color, and so forth. It is fun!

Posted By Geof in November, 2025
Source: Bizrate
Enlarged Gemstone Image