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Home › Gemstones › Gemstones By Size › 5 mm Gemstones

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
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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2.20ctw Blue Apatite, Oval, VS
Apatite Product Video (488823)

2.20ctw Blue Apatite, Oval, VS

5.2 x 4.1 mm

$ 48.32

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1.49ctw Red Pyrope Garnet, Square, VS

1.49ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 11.42

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0.40ct Green Sapphire, Oval, VS

0.40ct Green Sapphire, Oval, VS

5 x 4.2 mm

$ 29.57

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2.71ctw Red Pyrope Garnet, Square, VS

2.71ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 20.78

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0.59ct Black Diamond, Round, Opaque
Diamond Product Video (668701)

0.59ct Black Diamond, Round, Opaque

5 mm (calibrated)

$ 470.11

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1.44ctw Green Demantoid Garnet, Oval, VS

1.44ctw Green Demantoid Garnet, Oval, VS

5 x 3.8 mm

$ 157.77

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0.28ct Violet Iolite, Emerald Cut, VS

0.28ct Violet Iolite, Emerald Cut, VS

5 x 3 mm (calibrated)

$ 11.16

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0.57ct Red Pyrope Garnet, Heart, VVS-VS

0.57ct Red Pyrope Garnet, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 14.19

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0.39ctw Orange Sapphire, Marquise, VVS

0.39ctw Orange Sapphire, Marquise, VVS

5 x 2.5 mm (calibrated)

$ 26.71

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0.44ct Orange Spessartite Garnet, Oval, VS

0.44ct Orange Spessartite Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 13.15

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2.62ctw Yellow Sapphire, Round, VVS-VS

2.62ctw Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 172.37

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1.46ctw White Rainbow Moonstone, Pear Shape, Transparent

1.46ctw White Rainbow Moonstone, Pear Shape, Transparent

5 x 5 mm (calibrated)

$ 27.19

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0.31ct Violet Amethyst, Emerald Cut, VS

0.31ct Violet Amethyst, Emerald Cut, VS

5 x 3 mm (calibrated)

$ 1.80

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0.80ct Gray Cat'S Eye Alexandrite, Oval, Opaque

0.80ct Gray Cat'S Eye Alexandrite, Oval, Opaque

4.9 x 4.7 mm

$ 160.00

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2.09ctw Blue Tanzanite, Pear Shape, VS

2.09ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 80.14

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0.47ct Yellow Sphalerite, Oval, SI

0.47ct Yellow Sphalerite, Oval, SI

5 x 4.3 mm

$ 23.41

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0.33ct Violet Iolite, Baguette, VS

0.33ct Violet Iolite, Baguette, VS

5 x 3 mm (calibrated)

$ 13.15

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7.73ctw White Topaz, Square, VVS

7.73ctw White Topaz, Square, VVS

5 x 5 mm (calibrated)

$ 64.53

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0.20ct Yellow Sapphire, Marquise, VVS-VS
Sapphire Product Video (508819)

0.20ct Yellow Sapphire, Marquise, VVS-VS

5.1 x 2.4 mm

$ 4.75

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0.44ct Gray Cat'S Eye Alexandrite, Oval, Opaque

0.44ct Gray Cat'S Eye Alexandrite, Oval, Opaque

5 x 4 mm (calibrated)

$ 88.00

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2.20ctw Multicolor Andalusite, Pear Shape, VS

2.20ctw Multicolor Andalusite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 117.53

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3.17ctw Orange Sapphire, Pear Shape, VS

3.17ctw Orange Sapphire, Pear Shape, VS

4.8 x 3.2 mm

$ 69.70

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1.65ctw Blue Tanzanite, Pear Shape, VS

1.65ctw Blue Tanzanite, Pear Shape, VS

5.1 x 3.8 mm

$ 63.28

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1.35ctw Red Pyrope Garnet, Square, VS

1.35ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 10.36

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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

Very pleasant

Posted By Varun in June, 2026
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Overall Rating -> 10 star ratings

Great selection of gems at a reasonable price

Posted By Curt in July, 2025
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Overall Rating -> 10 star ratings

I can pick and choose from large selection and find just what I need for .y projects, currently my cane.

Posted By Darkstar731 in July, 2025
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Overall Rating -> 10 star ratings

Great site for finding specific stones and sizes for individual pieces of jewelry

Posted By Designer in December, 2025
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Overall Rating -> 10 star ratings

I loved it! Extensive inventory, great prices, I definitely will be buying from here again!

Posted By Lex in April, 2026
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Overall Rating -> 10 star ratings

Over pretty well experience the your website no complaints about it very easy reliable service provided

Posted By Blas in January, 2026
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