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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
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
Pairs
Lots
Faceted
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0.64ct Pink Spinel, Cushion, VVS

0.64ct Pink Spinel, Cushion, VVS

5.2 x 4.6 mm

$ 44.62

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0.49ct Orange Spessartite Garnet, Oval, VS

0.49ct Orange Spessartite Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 14.64

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0.41ct Pink Tourmaline, Round, Transparent

0.41ct Pink Tourmaline, Round, Transparent

5 mm (calibrated)

$ 16.33

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0.64ct Purple Spinel, Round, VS

0.64ct Purple Spinel, Round, VS

5 mm (calibrated)

$ 27.51

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1.24ctw Red Pyrope Garnet, Heart, VS

1.24ctw Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 32.61

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1.40ctw Red Rhodolite Garnet, Square, VS

1.40ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 12.26

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0.42ct Yellow Sapphire, Baguette, VS

0.42ct Yellow Sapphire, Baguette, VS

5.2 x 3.2 mm

$ 27.43

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0.53ct Orange Spessartite Garnet, Oval, VS-SI

0.53ct Orange Spessartite Garnet, Oval, VS-SI

5 x 4 mm (calibrated)

$ 15.84

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0.39ct Violet Sapphire, Pear Shape, VVS-VS

0.39ct Violet Sapphire, Pear Shape, VVS-VS

5 x 4 mm (calibrated)

$ 38.85

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1.44ctw Blue Tanzanite, Pear Shape, VS

1.44ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 55.22

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0.75ct Yellow Sapphire, Round, VVS-VS

0.75ct Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 49.34

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0.45ct Blue Sapphire, Heart, VS

0.45ct Blue Sapphire, Heart, VS

4.9 x 4.7 mm

$ 31.37

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0.66ct Blue Sapphire, Round, VVS
Sapphire Product Video (467399)

0.66ct Blue Sapphire, Round, VVS

5 mm (calibrated)

$ 370.50

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0.91ct Multicolor Sapphire, Cushion, VS-SI

0.91ct Multicolor Sapphire, Cushion, VS-SI

5 x 5 mm (calibrated)

$ 72.51

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0.94ctw Yellow Citrine, Heart, VVS

0.94ctw Yellow Citrine, Heart, VVS

5 x 5 mm (calibrated)

$ 6.56

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0.57ct Multicolor Sapphire, Cushion, VVS-VS

0.57ct Multicolor Sapphire, Cushion, VVS-VS

5 x 4 mm (calibrated)

$ 90.84

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0.63ct Blue Sapphire, Round, VVS

0.63ct Blue Sapphire, Round, VVS

5 mm (calibrated)

$ 375.01

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0.69ct Green Sapphire, Heart, VVS-VS

0.69ct Green Sapphire, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 37.74

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0.88ctw Yellow Citrine, Heart, VVS-VS

0.88ctw Yellow Citrine, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 7.01

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0.42ct Blue Sapphire, Heart, VVS-VS

0.42ct Blue Sapphire, Heart, VVS-VS

4.9 x 4.7 mm

$ 29.28

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0.65ct Blue Sapphire, Round, VVS-VS
Sapphire Product Video (449860)

0.65ct Blue Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 386.93

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0.64ct Orange Spessartite Garnet, Oval, VS

0.64ct Orange Spessartite Garnet, Oval, VS

5.1 x 4.2 mm

$ 19.12

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

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

5.1 x 4.4 mm

$ 17.93

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0.37ct Blue Tanzanite, Pear Shape, VS

0.37ct Blue Tanzanite, Pear Shape, VS

5 x 4 mm (calibrated)

$ 22.11

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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

It was good. There was a large selection at prices I could afford.

Posted By Zorah in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Nothing bad to report. Everything is as expected. The gems and the price are all very good.

Posted By Dafanatic in August, 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

Overall Rating -> 9 star ratings

Always a good quality stone. Priced fairly and shipped promptly. Answers emails quickly

Posted By Ron T in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Absolutely love Gem Select. I always know the quality and accuracy of information and photos are top notch. Highly recommend!

Posted By Matthew K. in May, 2026
Source: Bizrate
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