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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
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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
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Violet 5 mm Gemstones
White 5 mm Gemstones
Yellow 5 mm Gemstones
Single
Pairs
Lots
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0.59ct Red Pyrope Garnet, Heart, VS

0.59ct Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 17.70

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0.57ct Green Sapphire, Oval, VVS-VS

0.57ct Green Sapphire, Oval, VVS-VS

5.2 x 4.1 mm

$ 50.77

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1.76ctw Blue Tanzanite, Pear Shape, VS

1.76ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 104.54

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0.74ctw Green Sapphire, Oval, VVS-VS

0.74ctw Green Sapphire, Oval, VVS-VS

5 x 4 mm (calibrated)

$ 65.90

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1.43ctw Red Rhodolite Garnet, Square, VS

1.43ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 15.08

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2.03ctw Blue Apatite, Oval, VS

2.03ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 53.72

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0.68ct Yellow Sapphire, Round, VS

0.68ct Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 44.60

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0.26ct Violet Iolite, Emerald Cut, VS-SI

0.26ct Violet Iolite, Emerald Cut, VS-SI

5 x 3 mm (calibrated)

$ 12.48

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1.48ctw Red Rhodolite Garnet, Square, VS

1.48ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 15.61

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0.70ct Yellow Color-Change Diaspore, Round, VVS-VS

0.70ct Yellow Color-Change Diaspore, Round, VVS-VS

5 mm (calibrated)

$ 29.60

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1.30ctw Yellow Sapphire, Round, VS

1.30ctw Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 85.27

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1.44ctw Blue Tanzanite, Pear Shape, VS

1.44ctw Blue Tanzanite, Pear Shape, VS

5 x 3.1 mm

$ 66.53

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1.39ctw Orange Sapphire, Round, VVS-VS

1.39ctw Orange Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 91.82

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0.74ct Green Peridot, Square, Transparent

0.74ct Green Peridot, Square, Transparent

5 x 5 mm (calibrated)

$ 7.81

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0.61ct Red Pyrope Garnet, Heart, VS

0.61ct Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 18.30

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1.20ctw Blue Sapphire, Round, VS
Sapphire Product Video (441524)

1.20ctw Blue Sapphire, Round, VS

5 mm (calibrated)

$ 633.60

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1.58ctw Multicolor Andalusite, Oval, VS

1.58ctw Multicolor Andalusite, Oval, VS

5 x 3 mm (calibrated)

$ 101.69

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0.56ct Orange Sphalerite, Oval, SI

0.56ct Orange Sphalerite, Oval, SI

5.2 x 4.3 mm

$ 33.60

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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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2.36ctw Yellow Sapphire, Round, VVS-VS

2.36ctw Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 187.07

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0.47ct White Rainbow Moonstone, Round, Transparent

0.47ct White Rainbow Moonstone, Round, Transparent

5 mm (calibrated)

$ 18.05

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0.20ct Violet Iolite, Baguette, VS

0.20ct Violet Iolite, Baguette, VS

5 x 3 mm (calibrated)

$ 9.60

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0.37ct Green Sapphire, Emerald Cut, VVS-VS

0.37ct Green Sapphire, Emerald Cut, VVS-VS

5.1 x 3.1 mm

$ 42.18

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0.53ct Green Cat's Eye Alexandrite, Oval, Opaque

0.53ct Green Cat's Eye Alexandrite, Oval, Opaque

4.8 x 4.5 mm

$ 132.50

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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

The site provided lots of detail, factual data, and good photos. I also like the availability of searching by price range as well as by the type of stone.

Posted By SLIntuitive Donna in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

The stones are very nice.

Posted By Mvk in August, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.

Posted By Salvo in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great selection of gems at a reasonable price

Posted By Curt in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

love the site, the experience and the products.

Posted By Ckingpots in July, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

It was a good interaction I got a good gemstone for cheap

Posted By Jon in December, 2025
Source: Bizrate
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