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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
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
Cabochons
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0.32ct Violet Iolite, Baguette, VS

0.32ct Violet Iolite, Baguette, VS

5 x 3 mm (calibrated)

$ 15.36

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1.43ctw Blue Apatite, Oval, VS-SI

1.43ctw Blue Apatite, Oval, VS-SI

5 x 4 mm (calibrated)

$ 35.60

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2.37ctw Yellow Sapphire, Round, VS

2.37ctw Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 157.15

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0.44ct Blue Sapphire, Heart, VS

0.44ct Blue Sapphire, Heart, VS

5 x 5 mm (calibrated)

$ 36.96

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0.58ct Yellow Spessartite Garnet, Oval, VS

0.58ct Yellow Spessartite Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 23.20

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2.87ctw Blue Topaz, Oval, VS

2.87ctw Blue Topaz, Oval, VS

5.2 x 3.3 mm

$ 18.95

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0.88ctw Pink Sapphire, Oval, VS-SI

0.88ctw Pink Sapphire, Oval, VS-SI

5 x 4 mm (calibrated)

$ 105.60

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0.37ctw Orange Sapphire, Marquise, VVS-VS

0.37ctw Orange Sapphire, Marquise, VVS-VS

5 x 2.6 mm

$ 13.45

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0.90ctw White Zircon, Oval, VVS

0.90ctw White Zircon, Oval, VVS

5.1 x 3.2 mm

$ 52.92

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1.45ctw Multicolor Andalusite, Oval, VS

1.45ctw Multicolor Andalusite, Oval, VS

5 x 3 mm (calibrated)

$ 93.32

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0.58ct Yellow Sapphire, Emerald Cut, VVS-VS

0.58ct Yellow Sapphire, Emerald Cut, VVS-VS

5 x 4 mm (calibrated)

$ 37.97

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0.50ct Orange Clinohumite, Trillion, SI

0.50ct Orange Clinohumite, Trillion, SI

5 x 5 mm (calibrated)

$ 30.00

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0.63ct Yellow Sapphire, Round, VVS-VS

0.63ct Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 48.58

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0.66ct Red Spinel, Cushion, VS

0.66ct Red Spinel, Cushion, VS

5.1 x 4.3 mm

$ 55.44

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1.81ctw Red Pyrope Garnet, Square, VVS-VS

1.81ctw Red Pyrope Garnet, Square, VVS-VS

5 x 5 mm (calibrated)

$ 16.73

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1.43ctw Blue Apatite, Oval, Transparent

1.43ctw Blue Apatite, Oval, Transparent

5 x 4.3 mm

$ 35.41

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2.67ctw Purple Rhodolite Garnet, Oval, VS

2.67ctw Purple Rhodolite Garnet, Oval, VS

5 x 3 mm (calibrated)

$ 52.34

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0.58ct Blue Star Sapphire, Oval, Opaque

0.58ct Blue Star Sapphire, Oval, Opaque

4.8 x 3.8 mm

$ 23.20

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1.27ctw Blue Apatite, Oval, Transparent

1.27ctw Blue Apatite, Oval, Transparent

5.2 x 3.7 mm

$ 31.45

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0.50ct Blue Sapphire, Heart, VS

0.50ct Blue Sapphire, Heart, VS

5 x 5 mm (calibrated)

$ 42.00

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0.39ct Green Chrysoberyl Cat's Eye, Round, Translucent

0.39ct Green Chrysoberyl Cat's Eye, Round, Translucent

5 mm (calibrated)

$ 14.04

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0.41ct Yellow Citrine, Heart, VVS-VS

0.41ct Yellow Citrine, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 3.44

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0.66ct Yellow Sapphire, Round, VS

0.66ct Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 48.49

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0.36ctw Orange Sapphire, Marquise, VVS-VS

0.36ctw Orange Sapphire, Marquise, VVS-VS

5 x 2.5 mm (calibrated)

$ 29.71

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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

Will know more once order received

Posted By Jim in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the ability to choose from many options of shapes, gemstone type, color, and so forth. It is fun!

Posted By Geof in November, 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 -> 10 star ratings

All good

Posted By DouscheGift in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy to use. No issues. Large selection of gems.

Posted By CLTCJH in February, 2026
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
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