X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

5 mm Gemstones for Jewelry

Browse our selection of precisely calibrated 5 mm gemstones, ideal for consistent and professional jewelry designs.

5 mm Gemstones Weight
5 mm Gemstones Size
5 mm Gemstones Clarity
5 mm Gemstones Price
5 mm Gemstones Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color
Black 5 mm Gemstones
Blue 5 mm Gemstones
Brown 5 mm Gemstones
Gray 5 mm Gemstones
Green 5 mm Gemstones
Multicolor 5 mm Gemstones
Orange 5 mm Gemstones
Pink 5 mm Gemstones
Purple 5 mm Gemstones
Red 5 mm Gemstones
Turquoise 5 mm Gemstones
Violet 5 mm Gemstones
White 5 mm Gemstones
Yellow 5 mm Gemstones
Single
Pairs
Lots
Faceted
Cabochons
Clear All
0.90ct Orange Hessonite Garnet, Square, VS

0.90ct Orange Hessonite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 18.92

View Details
0.57ct Blue Sapphire, Round, VVS-VS

0.57ct Blue Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 462.62

View Details
0.80ct Green Tourmaline, Emerald Cut, VVS

0.80ct Green Tourmaline, Emerald Cut, VVS

5 x 4.6 mm

$ 40.00

View Details
1.43ctw Blue Apatite, Oval, VS-SI

1.43ctw Blue Apatite, Oval, VS-SI

5 x 4 mm (calibrated)

$ 35.41

View Details
0.50ct Green Sapphire, Oval, VVS-VS

0.50ct Green Sapphire, Oval, VVS-VS

5.1 x 4.2 mm

$ 44.53

View Details
0.27ct Violet Iolite, Baguette, VS

0.27ct Violet Iolite, Baguette, VS

5 x 3 mm (calibrated)

$ 12.96

View Details
1.69ctw Red Pyrope Garnet, Square, VVS-VS

1.69ctw Red Pyrope Garnet, Square, VVS-VS

5 x 5 mm (calibrated)

$ 15.61

View Details
0.42ct Yellow Citrine, Heart, VVS

0.42ct Yellow Citrine, Heart, VVS

5 x 5 mm (calibrated)

$ 4.03

View Details
1.45ctw White Zircon, Round, VVS

1.45ctw White Zircon, Round, VVS

5 mm (calibrated)

$ 51.68

View Details
0.68ct Green Sapphire, Round, VVS-VS

0.68ct Green Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 48.96

View Details
1.21ctw Brown Moonstone, Round, Translucent

1.21ctw Brown Moonstone, Round, Translucent

5 mm (calibrated)

$ 7.99

View Details
0.48ct Pink Tourmaline, Round, Transparent

0.48ct Pink Tourmaline, Round, Transparent

5 mm (calibrated)

$ 23.04

View Details
0.82ctw Pink Sapphire, Oval, VS-SI

0.82ctw Pink Sapphire, Oval, VS-SI

5 x 4 mm (calibrated)

$ 73.39

View Details
0.34ct Red Ruby, Pear Shape, VS-SI
Ruby Product Video (503017)

0.34ct Red Ruby, Pear Shape, VS-SI

4.8 x 3.9 mm

$ 134.64

View Details
3.18ctw Red Rhodolite Garnet, Square, VS

3.18ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 33.54

View Details
1.33ctw Orange Sapphire, Round, VS

1.33ctw Orange Sapphire, Round, VS

5 mm (calibrated)

$ 79.74

View Details
0.60ct Red Pyrope Garnet, Heart, VS

0.60ct Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 18.00

View Details
1.30ctw Blue Tanzanite, Pear Shape, VS

1.30ctw Blue Tanzanite, Pear Shape, VS

4.9 x 3.7 mm

$ 60.06

View Details
0.62ct Blue Sapphire, Round, VS

0.62ct Blue Sapphire, Round, VS

5 mm (calibrated)

$ 444.66

View Details
1.36ctw Yellow Sapphire, Round, VVS-VS

1.36ctw Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 90.17

View Details
0.59ct Yellow Sphalerite, Round, SI-I1

0.59ct Yellow Sphalerite, Round, SI-I1

5 mm (calibrated)

$ 35.40

View Details
0.60ct Yellow Chrysoberyl Cat's Eye, Oval, Translucent

0.60ct Yellow Chrysoberyl Cat's Eye, Oval, Translucent

5.1 x 4.4 mm

$ 21.60

View Details
1.68ctw Green Demantoid Garnet, Oval, VS

1.68ctw Green Demantoid Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 221.76

View Details
0.90ctw Pink Sapphire, Oval, VS-SI

0.90ctw Pink Sapphire, Oval, VS-SI

5 x 4 mm (calibrated)

$ 99.44

View Details

Why Buy 5 Mm Gemstones from GemSelect?

Precision Cut 5 mm Gemstones

Our 5 mm gemstones are expertly cut to precise dimensions, making them ideal for standardized jewelry settings such as rings, earrings, and bracelets.

Shop 5mm Loose Gemstones Online

Discover a wide range of 5mm loose gemstones available in many varieties, colors, and shapes, all ready for immediate shipment worldwide.

Perfect Size for Jewelry Settings

The 5 mm size is one of the most popular choices for jewelry, offering a balance between visibility and wearability for rings, studs, and pendants.

Wide Variety of Gemstone Types

Choose from sapphires, garnets, amethyst, citrine, peridot, and many other gemstones, all available in calibrated 5 mm sizes.

Faceted and Cabochon Options

Our 5 mm gemstones are available in both faceted cuts for maximum brilliance and cabochon finishes for a smooth, classic appearance.

Calibrated Gemstones for Easy Setting

Calibrated 5mm gemstones ensure a consistent fit in pre-made jewelry mounts, saving time and ensuring professional results for jewelers.

Natural and Certified Gemstones

All our gemstones are natural and carefully sourced, with full disclosure of any treatments to ensure transparency and trust.

Wholesale 5 mm Gemstones

We offer competitive pricing for bulk purchases, making our 5 mm gemstones an excellent choice for jewelry manufacturers and resellers.

Learn more about gemstone cuts, sizes, and quality on our Gemstone Cut Information Page.

FAQs

What does 5 mm mean in gemstones?

5 mm refers to the diameter or size of the gemstone, commonly used for round stones, making it a standardized size for jewelry settings.

Are 5 mm gemstones considered large?

5 mm gemstones are considered medium-sized, offering a noticeable presence while remaining comfortable for everyday wear.

Are 5mm gemstones calibrated?

Yes, most 5mm gemstones are precision-cut to calibrated sizes, ensuring they fit standard jewelry mounts without adjustment.

Which gemstones are available in 5 mm size?

Many gemstones are available in 5 mm, including sapphire, ruby, garnet, amethyst, citrine, peridot, and more.

Can I use 5 mm gemstones for engagement rings?

Yes, 5 mm gemstones are a popular choice for engagement rings, especially for those seeking a balanced and practical stone size.

Do 5 mm gemstones work with standard settings?

Yes, calibrated 5 mm gemstones are designed to fit standard jewelry settings, making them easy to use in pre-made mounts.

Are your 5 mm gemstones natural?

All our gemstones are natural, with any treatments clearly disclosed to maintain transparency and customer confidence.

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

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 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

It was easy to navigate

Posted By GemGod in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great prices!!! High quality gemstones.

Posted By Ricky in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.

Posted By DNaber in October, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It was fine . Wish there had been more round stones to select from

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