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Home Gemstones Gemstones By Weight 3 ct Gemstones

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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3.20ct Green Agate, Oval, Translucent

9.4 x 8.3 mm

$ 3.48

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3.02ct White Moonstone, Oval, Translucent

10 x 8 mm (calibrated)

$ 26.48

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3.16ct Multicolor Black Opal, Oval, Opaque

13.6 x 9.6 mm

$ 92.06

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3.01ct Multicolor Opal Triplet, Oval, Opaque

12 x 10 mm (calibrated)

$ 74.95

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3.31ct Multicolor Fire Agate, Fancy, Translucent

10.1 x 8.4 mm

$ 28.04

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3.42ct Green Agate, Oval, Translucent

9.5 x 8.8 mm

$ 3.72

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3.48ct Green Prehnite, Pear Shape, Transparent/Translucent

10.9 x 8.5 mm

$ 7.63

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3.14ct Blue Topaz, Heart, VVS

9 x 9 mm (calibrated)

$ 22.46

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3.32ct Red Almandine Garnet, Oval, VS

10 x 8 mm (calibrated)

$ 115.74

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3.45ct Multicolor Opal Triplet, Fancy, Opaque

15.5 x 9.2 mm

$ 85.91

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3.25ct Brown Moonstone, Flower Cut, Translucent

10 x 10 mm (calibrated)

$ 14.24

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3.13ct Red Almandine Garnet, Pear Shape, VVS-VS

12 x 8 mm (calibrated)

$ 25.98

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3.23ct Yellow Quartz, Flower Cut, Transparent

12 x 12 mm (calibrated)

$ 10.62

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3.31ct Multicolor Opal, Oval, Opaque

13 x 10.2 mm

$ 83.25

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3.36ct Orange Sunstone, Round, Transparent

10 mm (calibrated)

$ 19.59

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3.18ct Yellow Citrine, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 22.17

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3.19ct Red Andesine Labradorite, Cushion, Transparent

10.3 x 8.5 mm

$ 39.72

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3.13ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 23.46

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3.14ct Yellow Citrine, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 17.20

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3.41ct Black Cat'S Eye Scapolite, Oval, Translucent

10.2 x 7.5 mm

$ 9.35

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3.01ct Purple Kunzite, Pear Shape, VVS-VS

10 x 7 mm (calibrated)

$ 65.95

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3.10ct Yellow Citrine, Oval, VVS-VS

12 x 8.7 mm

$ 23.77

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3.19ct Violet Amethyst, Oval, Transparent

10 x 8 mm (calibrated)

$ 19.07

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3.47ct Blue Topaz, Marquise, VVS

14.9 x 6.9 mm

$ 26.61

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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

Easy and good price

Posted By Bry_guy in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoy viewing the selections. Excellent product

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

Overall Rating -> 10 star ratings

I love the product and the details about each of them.

Posted By Love It! in July, 2025
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 -> 10 star ratings

Absolutely love the website, selection and products. Can you guys add a gemstones with inclusions tab. I like those it'd be nice to have them all in one place but i do understand it would be alot of work to go through and categorize them. Thank you anyways

Posted By The homie edgar in December, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Always a good quality stone. Priced fairly and shipped promptly. Answers emails quickly

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