What is a 3 mm round sapphire?

A 3 mm round sapphire is a small, round cut sapphire gemstone that measures 3 millimeters in diameter. It is a popular choice for fine jewelry, including rings, earrings, and pendants.

What colors are available for a 3 mm round sapphire?

A 3 mm round sapphire is available in various colors, including blue, yellow, pink, and white. The most common choice is a round blue sapphire, but many people also prefer a round yellow sapphire or a round pink sapphire for unique jewelry designs.

Is a 3 mm round sapphire a natural gemstone?

Yes, a 3 mm round sapphire can be either natural or lab-created. Natural sapphire gemstones are mined from the earth, while lab-created sapphires are crafted to have the same physical and chemical properties as natural sapphires.

How is a 3 mm round sapphire used in jewelry?

A 3 mm round sapphire is commonly used as an accent stone in rings, earrings, and necklaces. The round cut sapphire is known for its brilliance, making it a great choice for jewelry designs. A sapphire 3 mm round can also be set in engagement rings or used in cluster settings.

What is the difference between a 3 mm round sapphire and a round cut sapphire?

A 3 mm round sapphire refers specifically to a sapphire gemstone that is 3 mm in size. A round cut sapphire refers to any sapphire that has been faceted into a round shape, which can come in various sizes, including 3 mm, 4 mm, and larger.

How do I choose the best 3 mm round sapphire for my jewelry?

When selecting a sapphire 3 mm round, consider factors such as color, clarity, and cut. A high-quality round blue sapphire will have a deep, vivid color, while a round white sapphire is often chosen as a diamond alternative. Checking the gemstone’s brilliance and overall appearance will help ensure you choose the best round 3 mm sapphire for your needs.

Can a 3 mm round sapphire be used in custom jewelry?

Yes, a 3 mm round sapphire is a perfect choice for custom jewelry designs. Many jewelers use round sapphire 3 mm stones in bespoke rings, bracelets, and earrings. The round cut sapphire is versatile and pairs well with various metals like gold, silver, and platinum.

Where can I buy a high-quality 3 mm round sapphire?

You can buy a high-quality 3 mm round sapphire from reputable gemstone retailers. Look for natural round cut sapphire gemstones that come with certifications to ensure authenticity. Whether you need a sapphire 3 mm round for a ring or a round precious stone for a pendant, choosing a trusted seller is important.

3mm Round Sapphire: Natural Blue, Pink, Yellow and White Round Gems, Wholesale 3mm Round Sapphire

Name: 5.45ctw Blue Sapphire, Round, VVS-VS
Brand: GemSelect
SKU: 752347
Price: 542.82 USD
Availability: InStock

3 mm Round Sapphire Weight

3 mm Round Sapphire Size

3 mm Round Sapphire Clarity

3 mm Round Sapphire Price

3 mm Round Sapphire Treatment

Size Explained

Choose Size or Size Range

For Example: 6-7

For Example: 8-9

All

None

Heated

Be-Heated

Bi-color

Black

Blue 3 mm Round Sapphire

Brown

Golden

Gray

Green

Multicolor

Orange

Pink

Purple

Red

Turquoise

Violet

White

Yellow

Single

Pairs

Lots

Faceted

Cabochons

Clear All

5.45ctw Blue Sapphire, Round, VVS-VS

3 mm (calibrated)

$ 542.82

View Gem

Why Buy 3 Mm Round Sapphire from GemSelect?

Trusted Worldwide Since 2003
Supplying natural gemstones to jewelers and collectors in 120+ countries
Verified natural gemstones
View All GemSelect Reviews on Bizrate
Secure checkout and insured worldwide delivery
30-day returns and satisfaction guarantee

GemSelect Certified Store Reviews

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

Overall Rating -> 10

Great prices!!! High quality gemstones.

Posted By Ricky in October, 2025

Source: Bizrate

Overall Rating -> 10

Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10

Posted By KT in September, 2025

Source: Bizrate

Overall Rating -> 10

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 -> 10

I have been very happy with my prior purchases and enjoy the website experience.

Posted By Trouble in November, 2025

Source: Bizrate

Overall Rating -> 9

Everything was good, the purchase was what I expected and what they show is what you get.

Posted By Mr. in March, 2026

Source: Bizrate

Overall Rating -> 10

Easy picking, fast checkout, secure shipping. Cana't ask for anything more than efficiency and a good price.

Posted By Beman in September, 2025

Source: Bizrate

→ View All GemSelect Reviews on Bizrate