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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

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For Example: 6-7
For Example: 8-9
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Black 5 mm Gemstones
Blue 5 mm Gemstones
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Green 5 mm Gemstones
Multicolor 5 mm Gemstones
Orange 5 mm Gemstones
Pink 5 mm Gemstones
Purple 5 mm Gemstones
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Turquoise 5 mm Gemstones
Violet 5 mm Gemstones
White 5 mm Gemstones
Yellow 5 mm Gemstones
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1.24ctw Blue Tanzanite, Round, Transparent

1.24ctw Blue Tanzanite, Round, Transparent

5 mm (calibrated)

$ 12.94

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0.17ct Violet Iolite, Pear Shape, VVS

0.17ct Violet Iolite, Pear Shape, VVS

4.9 x 3.2 mm

$ 8.16

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0.52ct Green Sapphire, Trillion, VVS-VS

0.52ct Green Sapphire, Trillion, VVS-VS

5 x 4.8 mm

$ 49.92

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0.49ct Pink Tourmaline, Round, Transparent

0.49ct Pink Tourmaline, Round, Transparent

5 mm (calibrated)

$ 23.52

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0.45ct Blue Sapphire, Heart, VS

0.45ct Blue Sapphire, Heart, VS

4.9 x 4.7 mm

$ 37.80

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1.58ctw Red Pyrope Garnet, Square, VS

1.58ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 14.60

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1.02ctw Red Pyrope Garnet, Heart, VVS-VS

1.02ctw Red Pyrope Garnet, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 30.60

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2.47ctw Yellow Sapphire, Round, VVS-VS

2.47ctw Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 195.78

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0.42ct Orange Sapphire, Pear Shape, VVS-VS
Sapphire Product Video (568472)

0.42ct Orange Sapphire, Pear Shape, VVS-VS

5.1 x 4.2 mm

$ 15.38

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0.50ct Yellow Sapphire, Emerald Cut, VVS

0.50ct Yellow Sapphire, Emerald Cut, VVS

5 x 4 mm (calibrated)

$ 32.74

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0.42ct Violet Sapphire, Oval, VVS-VS

0.42ct Violet Sapphire, Oval, VVS-VS

5 x 4 mm (calibrated)

$ 50.41

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1.94ctw Multicolor Andalusite, Oval, VS
Andalusite Product Video (390592)

1.94ctw Multicolor Andalusite, Oval, VS

5 x 3 mm (calibrated)

$ 124.86

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1.14ctw Yellow Sapphire, Round, VVS-VS

1.14ctw Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 90.37

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0.70ct Blue Kyanite, Round, SI

0.70ct Blue Kyanite, Round, SI

5 mm (calibrated)

$ 21.00

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0.23ct Violet Iolite, Emerald Cut, VVS-VS

0.23ct Violet Iolite, Emerald Cut, VVS-VS

5 x 2.8 mm

$ 11.04

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0.73ctw White Zircon, Oval, VVS

0.73ctw White Zircon, Oval, VVS

5 x 3 mm (calibrated)

$ 42.92

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0.26ct Violet Iolite, Emerald Cut, VS-SI

0.26ct Violet Iolite, Emerald Cut, VS-SI

5 x 3 mm (calibrated)

$ 12.48

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1.22ctw Orange Zircon, Oval, VS

1.22ctw Orange Zircon, Oval, VS

5.2 x 4 mm

$ 36.60

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2.96ctw Blue Topaz, Oval, VS

2.96ctw Blue Topaz, Oval, VS

5.1 x 3.1 mm

$ 19.54

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1.28ctw Blue Tanzanite, Pear Shape, VS

1.28ctw Blue Tanzanite, Pear Shape, VS

5 x 3.2 mm

$ 53.76

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0.57ctw Pink Sapphire, Oval, VS

0.57ctw Pink Sapphire, Oval, VS

5 x 3 mm (calibrated)

$ 59.84

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2.54ctw Red Rhodolite Garnet, Square, VS

2.54ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 26.78

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1.54ctw Green Tsavorite Garnet, Pear Shape, VS

1.54ctw Green Tsavorite Garnet, Pear Shape, VS

5 x 3 mm (calibrated)

$ 97.84

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0.31ct Blue Tanzanite, Pear Shape, VS

0.31ct Blue Tanzanite, Pear Shape, VS

5 x 4 mm (calibrated)

$ 22.32

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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 -> 9 star ratings

Very easy to navigate with a great selection.

Posted By Bar181 in August, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

the gems were smaller than I thought but I was at fault for not reading the complete discrimination

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

easy site to navigate

Posted By Curt's Cabochons in June, 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

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

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
→ View All GemSelect Reviews on Bizrate
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