90,000+Happy Customers
20+Years
WorldwideShipping
Cart
Free Report Included
Worldwide Shipping
30 Day Returns
Help Center Shipping Payment and Checkout Returns Certificates Contact Us
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
Clear All
3.36ct Violet Amethyst, Oval, Transparent

3.36ct Violet Amethyst, Oval, Transparent

10.6 x 8.7 mm

$ 20.08

View Gem
3.21ct Brown Rutile Quartz, Round, Transparent

3.21ct Brown Rutile Quartz, Round, Transparent

9 mm (calibrated)

$ 10.55

View Gem
3.01ct Violet Amethyst, Trillion, VS

3.01ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 23.09

View Gem
3.15ct Yellow Citrine, Oval, VVS

3.15ct Yellow Citrine, Oval, VVS

11 x 9 mm (calibrated)

$ 21.96

View Gem
3.21ct Multicolor Opal Triplet, Fancy, Opaque

3.21ct Multicolor Opal Triplet, Fancy, Opaque

15.7 x 9.1 mm

$ 79.93

View Gem
3.31ct Violet Amethyst, Round, VVS

3.31ct Violet Amethyst, Round, VVS

10 mm (calibrated)

$ 25.39

View Gem
3.34ct Multicolor Opal, Oval, Transparent

3.34ct Multicolor Opal, Oval, Transparent

12.9 x 8.3 mm

$ 149.70

View Gem
3.11ct Multicolor Black Opal, Cushion, Opaque

3.11ct Multicolor Black Opal, Cushion, Opaque

12 x 8 mm (calibrated)

$ 90.60

View Gem
3.38ct Multicolor Black Opal, Cushion, Opaque

3.38ct Multicolor Black Opal, Cushion, Opaque

13.9 x 7.9 mm

$ 100.99

View Gem
3.28ct Yellow Quartz, Oval, Transparent

3.28ct Yellow Quartz, Oval, Transparent

10.3 x 8.4 mm

$ 3.85

View Gem
3.27ct Yellow Andesine Labradorite, Oval, Transparent

3.27ct Yellow Andesine Labradorite, Oval, Transparent

10 x 8 mm (calibrated)

$ 71.65

View Gem
3.34ct Multicolor Opal Triplet, Fancy, Opaque

3.34ct Multicolor Opal Triplet, Fancy, Opaque

16.8 x 8.3 mm

$ 83.17

View Gem
3.30ct Green Emerald, Emerald Cut, VS-SI
Emerald Product Video (714590)

3.30ct Green Emerald, Emerald Cut, VS-SI

9.6 x 7.7 mm

$ 8,874.36

View Gem
3.02ct Pink Kunzite, Emerald Cut, VS

3.02ct Pink Kunzite, Emerald Cut, VS

7.8 x 7.2 mm

$ 75.20

View Gem
3.29ct Turquoise Fluorite, Oval, Transparent

3.29ct Turquoise Fluorite, Oval, Transparent

9 x 7 mm (calibrated)

$ 13.11

View Gem
3.30ct Green Prehnite, Oval, Transparent/Translucent

3.30ct Green Prehnite, Oval, Transparent/Translucent

9.3 x 7.9 mm

$ 9.76

View Gem
3.25ct Purple Kunzite, Emerald Cut, VVS

3.25ct Purple Kunzite, Emerald Cut, VVS

10.7 x 6 mm

$ 89.44

View Gem
3.23ct Multicolor Opal Triplet, Fancy, Opaque

3.23ct Multicolor Opal Triplet, Fancy, Opaque

15.6 x 9.1 mm

$ 80.43

View Gem
3.01ct Red Andesine Labradorite, Oval, Transparent/Translucent

3.01ct Red Andesine Labradorite, Oval, Transparent/Translucent

10 x 8 mm (calibrated)

$ 39.57

View Gem
3.27ct Pink Andesine Labradorite, Emerald Cut, Transparent
Andesine Labradorite Product Video (739155)

3.27ct Pink Andesine Labradorite, Emerald Cut, Transparent

10.8 x 8.4 mm

$ 40.71

View Gem
3.35ct Multicolor Opal Triplet, Fancy, Opaque

3.35ct Multicolor Opal Triplet, Fancy, Opaque

15.6 x 9.2 mm

$ 83.42

View Gem
3.05ct Green Agate, Oval, Translucent

3.05ct Green Agate, Oval, Translucent

8.9 x 8.2 mm

$ 5.01

View Gem
3.37ct Multicolor Opal, Oval, Opaque

3.37ct Multicolor Opal, Oval, Opaque

12 x 10 mm (calibrated)

$ 100.70

View Gem
3.26ct Green Chrysoprase, Round, Translucent

3.26ct Green Chrysoprase, Round, Translucent

8.5 mm (calibrated)

$ 27.06

View Gem

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

this site is awesome. I was able to look at the products think about purchasing and come back and find the same products. With the amount of inventory gem select has. Its awesome to be able to filter the way that they allow you too.

Posted By Tommyp in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have a beautiful emerald I purchased from a company names gemselect and they are awesome! You should try them out?

Posted By Lynn in September, 2025
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

All good

Posted By DouscheGift in August, 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

Good selection prices are reasonable!

Posted By ToRa62 in April, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
Enlarged Gemstone Image