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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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0.30ct Violet Amethyst, Emerald Cut, VS

5.1 x 3.2 mm

$ 1.74

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0.56ct Orange Sphalerite, Round, SI

5 mm (calibrated)

$ 27.89

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0.52ct Orange Spessartite Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 13.01

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2.87ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 22.01

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2.81ctw Green Tsavorite Garnet, Pear Shape, VS

5 x 3 mm (calibrated)

$ 148.19

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0.84ctw Yellow Citrine, Heart, VVS

5 x 5 mm (calibrated)

$ 6.69

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0.60ct Yellow Color-Change Diaspore, Cushion, VVS-VS

5.2 x 4.4 mm

$ 31.67

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0.59ct Pink Tourmaline, Round, Transparent

5 mm (calibrated)

$ 23.51

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0.67ct Orange Zircon, Oval, VS

5.1 x 4.2 mm

$ 10.01

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0.82ctw Green Sapphire, Oval, VVS-VS

5 x 4 mm (calibrated)

$ 60.61

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0.46ct Orange Spessartite Garnet, Oval, VS-SI

5 x 4 mm (calibrated)

$ 13.74

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1.18ctw Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 9.40

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1.36ctw Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 74.04

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0.52ct Red Pyrope Garnet, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 12.95

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0.52ctw Blue Tanzanite, Pear Shape, VVS-VS

5 x 4 mm (calibrated)

$ 31.08

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3.48ctw White Rainbow Moonstone, Pear Shape, Transparent

5 x 5 mm (calibrated)

$ 64.97

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1.56ctw Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 84.93

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1.36ctw Red Pyrope Garnet, Square, VVS-VS

5 x 5 mm (calibrated)

$ 10.42

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1.25ctw Yellow Color-Change Diaspore, Cushion, VS

5.2 x 4.6 mm

$ 65.99

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0.64ct Green Sapphire, Heart, VS

5 x 5 mm (calibrated)

$ 35.01

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7.55ctw White Topaz, Square, VVS-VS

5 x 5 mm (calibrated)

$ 60.00

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0.87ctw Pink Sapphire, Oval, VS

4.8 x 4 mm

$ 75.74

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1.52ctw Blue Apatite, Oval, VS-SI

5 x 4 mm (calibrated)

$ 31.42

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0.57ct Multicolor Tourmaline, Round, Transparent

5 mm (calibrated)

$ 11.83

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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

I had a very easy time navigating the web page and using filters to find what I was looking for. The varied selection was nice to see and pricing is clear and fair.

Posted By Mattick in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoy every moment

Posted By Ferns in October, 2025
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Overall Rating -> 10 star ratings

Great website, easy to navigate, and loads quickly. Have bought here before, very pleased!

Posted By SallyO in February, 2026
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Overall Rating -> 10 star ratings

The website has a good selection, the interface is very intuitive.

Posted By PhoenixFeatherJewelry in January, 2026
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Overall Rating -> 10 star ratings

I love the product and the details about each of them.

Posted By Love It! in July, 2025
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Overall Rating -> 10 star ratings

Great selection of gems at a reasonable price

Posted By Curt in July, 2025
Source: Bizrate
Enlarged Gemstone Image