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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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3.34ct Blue Sapphire, Oval, VS

9 x 7 mm (calibrated)

$ 6,098.84

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3.03ct Blue Tanzanite, Marquise, VS

13.9 x 6.4 mm

$ 875.19

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3.28ct White Zircon, Oval, VS

8.3 x 6.4 mm

$ 77.52

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3.36ct Red Ruby, Fancy, Opaque

13.1 x 10.5 mm

$ 55.78

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3.31ct Orange Andesine Labradorite, Pear Shape, Transparent

11.9 x 8.7 mm

$ 72.53

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3.10ct Brown Cat'S Eye Scapolite, Round, Translucent

9 mm (calibrated)

$ 16.98

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3.03ct Yellow Apatite, Emerald Cut, VS

7.7 x 7.6 mm

$ 123.32

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3.36ct Orange Sphalerite, Emerald Cut, SI

9.3 x 6.5 mm

$ 167.33

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3.38ct Red Ruby, Flower Cut, Opaque

12.3 x 8.7 mm

$ 56.11

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3.26ct Yellow Cat'S Eye Opal, Oval, Opaque

11.6 x 6.8 mm

$ 9.74

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3.05ct Turquoise Grandidierite, Emerald Cut, SI

13 x 6.9 mm

$ 133.66

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3.38ct Turquoise Fluorite, Pear Shape, Transparent

10 x 8.9 mm

$ 13.46

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3.34ct Multicolor Opal, Fancy, Translucent

13.1 x 9.5 mm

$ 93.14

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3.27ct Pink Tourmaline, Emerald Cut, VS-SI

10.7 x 6.2 mm

$ 206.00

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3.24ct Blue Sapphire, Oval, VS

10.1 x 8.6 mm

$ 8,519.39

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3.06ct Pink Tourmaline, Emerald Cut, SI

9 x 6.3 mm

$ 192.77

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3.43ct Yellow Cat'S Eye Opal, Oval, Opaque

10.4 x 8.6 mm

$ 10.25

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3.07ct White Zircon, Oval, VS

8.8 x 6.3 mm

$ 72.55

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3.01ct Green Tourmaline, Emerald Cut, VS

22.4 x 4 mm

$ 148.40

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3.15ct Green Agate, Flower Cut, Transparent

17.9 x 8.7 mm

$ 8.63

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3.05ct Yellow Color-Change Diaspore, Cushion, VVS-VS

15.3 x 4.8 mm

$ 835.40

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3.11ct Yellow Citrine, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 21.68

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3.24ct Green Prehnite, Round, Transparent/Translucent

9 mm (calibrated)

$ 14.55

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3.11ct Yellow Citrine, Fancy, VVS

10.6 x 9.7 mm

$ 20.45

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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

My experience was done with ease

Posted By Barb in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection prices are reasonable!

Posted By ToRa62 in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I always purchase my stones from GemSelect, their products are high quality and customer service is always great. I also like the fact that I am able to purchase unique items

Posted By Desperaux in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 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

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

Posted By Tree Dog in April, 2026
Source: Bizrate
Enlarged Gemstone Image