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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
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Black 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
Red 5 mm Gemstones
Turquoise 5 mm Gemstones
Violet 5 mm Gemstones
White 5 mm Gemstones
Yellow 5 mm Gemstones
Single
Pairs
Lots
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0.56ct Orange Spessartite Garnet, Oval, VS

0.56ct Orange Spessartite Garnet, Oval, VS

5.1 x 4.2 mm

$ 23.52

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2.67ctw Orange Sapphire, Round, VVS-VS

2.67ctw Orange Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 211.63

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2.06ctw Blue Apatite, Oval, VS

2.06ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 54.52

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0.52ct Orange Sapphire, Round, VS

0.52ct Orange Sapphire, Round, VS

5 mm (calibrated)

$ 37.44

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1.29ctw Blue Tanzanite, Pear Shape, VS

1.29ctw Blue Tanzanite, Pear Shape, VS

4.9 x 3.8 mm

$ 59.60

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0.52ct Yellow Sapphire, Oval, VS

0.52ct Yellow Sapphire, Oval, VS

5.2 x 4.1 mm

$ 34.00

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1.09ctw Yellow Zircon, Oval, VVS-VS

1.09ctw Yellow Zircon, Oval, VVS-VS

5 x 4 mm (calibrated)

$ 32.70

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0.32ct Blue Tanzanite, Pear Shape, VVS-VS

0.32ct Blue Tanzanite, Pear Shape, VVS-VS

5 x 4 mm (calibrated)

$ 23.04

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0.63ct Purple Spinel, Round, VS

0.63ct Purple Spinel, Round, VS

5 mm (calibrated)

$ 34.93

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4.40ctw Yellow Sapphire, Marquise, VVS-VS

4.40ctw Yellow Sapphire, Marquise, VVS-VS

5.1 x 2.6 mm

$ 145.20

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1.61ctw Red Rhodolite Garnet, Square, VS

1.61ctw Red Rhodolite Garnet, Square, VS

4.9 x 4.7 mm

$ 16.98

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1.54ctw White Zircon, Round, VVS
Zircon Product Video (594857)

1.54ctw White Zircon, Round, VVS

5 mm (calibrated)

$ 45.74

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2.86ctw Blue Topaz, Oval, VS

2.86ctw Blue Topaz, Oval, VS

5.2 x 3.2 mm

$ 18.88

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0.61ct Red Pyrope Garnet, Heart, VVS-VS

0.61ct Red Pyrope Garnet, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 18.30

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1.36ctw Red Pyrope Garnet, Square, VS

1.36ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 12.56

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0.38ct Yellow Color-Change Diaspore, Oval, VS

0.38ct Yellow Color-Change Diaspore, Oval, VS

4.9 x 3.7 mm

$ 24.17

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2.87ctw Red Pyrope Garnet, Square, VS

2.87ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 26.52

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1.63ctw Red Rhodolite Garnet, Square, VS

1.63ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 17.18

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2.76ctw Green Peridot, Round, VVS-VS

2.76ctw Green Peridot, Round, VVS-VS

5 mm (calibrated)

$ 54.65

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3.18ctw Violet Amethyst, Marquise, VS

3.18ctw Violet Amethyst, Marquise, VS

5 x 2.6 mm

$ 20.99

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0.33ct Green Kornerupine, Oval, VS-SI

0.33ct Green Kornerupine, Oval, VS-SI

4.9 x 3.7 mm

$ 34.06

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0.35ct Yellow Citrine, Heart, VVS

0.35ct Yellow Citrine, Heart, VVS

4.9 x 4.8 mm

$ 3.36

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0.45ct Yellow Citrine, Heart, VVS-VS

0.45ct Yellow Citrine, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 4.32

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2.43ctw Orange Spessartite Garnet, Oval, VS

2.43ctw Orange Spessartite Garnet, Oval, VS

5.1 x 3.3 mm

$ 99.43

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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

Great for buying gemstones, came with authenticity certs. Will buy again someday!

Posted By Uggadugga in May, 2025
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 -> 10 star ratings

IT WAS GREAT SIMPLE I WAS ABLE TO MAKE AN ACCOUNT EASY AND WAS ABLE TO FAVORITE ALL OF MY FINAL SELECTED GEMS, I JUST LOVE IT.

Posted By YE in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.

Posted By MVK in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Was a good experience.

Posted By Tim in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Found a beautiful opal at a great price. I was not disappointed when it arrived. Even better in person.

Posted By Fried Rice in August, 2025
Source: Bizrate
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