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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
Golden
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
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Lots
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0.61ct Orange Sapphire, Round, VS

0.61ct Orange Sapphire, Round, VS

5 mm (calibrated)

$ 36.45

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7.83ctw White Topaz, Square, VVS-VS

7.83ctw White Topaz, Square, VVS-VS

5 x 5 mm (calibrated)

$ 63.06

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1.31ctw Blue Apatite, Oval, VS

1.31ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 28.78

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0.54ct Red Pyrope Garnet, Heart, VS

0.54ct Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 13.45

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0.51ct Yellow Citrine, Heart, VS

0.51ct Yellow Citrine, Heart, VS

5 x 5 mm (calibrated)

$ 4.07

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1.54ctw Blue Tanzanite, Pear Shape, VS

1.54ctw Blue Tanzanite, Pear Shape, VS

5.1 x 3.1 mm

$ 59.05

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0.55ct Blue Sapphire, Round, VVS-VS

0.55ct Blue Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 327.39

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0.48ct Blue Sapphire, Heart, VS

0.48ct Blue Sapphire, Heart, VS

5 x 5 mm (calibrated)

$ 33.47

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1.81ctw Red Pyrope Garnet, Square, VVS-VS

1.81ctw Red Pyrope Garnet, Square, VVS-VS

5 x 5 mm (calibrated)

$ 13.89

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1.30ctw Yellow Sapphire, Round, VS

1.30ctw Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 70.77

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2.04ctw Blue Tanzanite, Pear Shape, VS

2.04ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 100.58

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1.39ctw Blue Tanzanite, Pear Shape, VS

1.39ctw Blue Tanzanite, Pear Shape, VS

5.1 x 3.8 mm

$ 53.30

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2.46ctw Red Pyrope Garnet, Square, VS

2.46ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 18.87

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0.65ct Blue Sapphire, Round, VVS-VS
Sapphire Product Video (467305)

0.65ct Blue Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 331.72

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1.18ctw Orange Sapphire, Round, VVS-VS

1.18ctw Orange Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 77.64

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4.06ctw Green Sapphire, Oval, VVS-VS

4.06ctw Green Sapphire, Oval, VVS-VS

5.1 x 4.2 mm

$ 165.88

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0.64ct Pink Tourmaline, Round, Transparent

0.64ct Pink Tourmaline, Round, Transparent

5 mm (calibrated)

$ 25.50

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2.98ctw Green Peridot, Round, VVS-VS

2.98ctw Green Peridot, Round, VVS-VS

5 mm (calibrated)

$ 48.97

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3.08ctw Blue Topaz, Oval, VS

3.08ctw Blue Topaz, Oval, VS

5.1 x 3.2 mm

$ 16.87

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1.29ctw Blue Tanzanite, Pear Shape, VS

1.29ctw Blue Tanzanite, Pear Shape, VS

5 x 3.8 mm

$ 49.47

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2.19ctw Purple Rhodolite Garnet, Oval, VS

2.19ctw Purple Rhodolite Garnet, Oval, VS

5.1 x 4.1 mm

$ 23.69

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0.47ct Yellow Citrine, Heart, VVS-VS

0.47ct Yellow Citrine, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 3.74

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1.48ctw Red Rhodolite Garnet, Square, VS

1.48ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 12.96

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2.96ctw Red Rhodolite Garnet, Square, VS

2.96ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 25.91

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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

Easy to use. No issues. Large selection of gems.

Posted By CLTCJH in February, 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

Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.

Posted By Darkstar in June, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

It was a good interaction I got a good gemstone for cheap

Posted By Jon in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Everything was great, website user friendly, quality amazing, communication amazing, delivery amazing, everything was as expected, they done what they said they would, overall experience was amazing.

Posted By Jac in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

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
→ View All GemSelect Reviews on Bizrate
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