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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
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
Pairs
Lots
Faceted
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2.75ctw Green Peridot, Square, VS

2.75ctw Green Peridot, Square, VS

5 x 5 mm (calibrated)

$ 30.13

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0.51ct Yellow Citrine, Cushion, VVS

0.51ct Yellow Citrine, Cushion, VVS

5 x 4.8 mm

$ 3.81

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1.90ctw Blue Apatite, Oval, VS

1.90ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 41.74

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1.50ctw White Rainbow Moonstone, Pear Shape, Transparent

1.50ctw White Rainbow Moonstone, Pear Shape, Transparent

5 x 5 mm (calibrated)

$ 27.94

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0.42ct Yellow Citrine, Heart, VVS

0.42ct Yellow Citrine, Heart, VVS

5 x 5 mm (calibrated)

$ 3.34

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2.99ctw Red Pyrope Garnet, Square, VS

2.99ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 22.92

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0.49ct Blue Sapphire, Heart, VS

0.49ct Blue Sapphire, Heart, VS

5 x 5 mm (calibrated)

$ 34.16

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0.70ct Blue Kyanite, Round, SI

0.70ct Blue Kyanite, Round, SI

5 mm (calibrated)

$ 17.43

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0.34ctw Orange Sapphire, Marquise, VVS-VS

0.34ctw Orange Sapphire, Marquise, VVS-VS

5 x 2.5 mm (calibrated)

$ 23.30

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1.02ctw Red Pyrope Garnet, Heart, VVS-VS

1.02ctw Red Pyrope Garnet, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 25.40

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0.64ct Yellow Sapphire, Round, VS

0.64ct Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 39.15

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1.90ctw Blue Apatite, Oval, VS

1.90ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 41.74

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0.40ctw Orange Sapphire, Marquise, VVS-VS

0.40ctw Orange Sapphire, Marquise, VVS-VS

4.9 x 2.5 mm

$ 12.06

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1.45ctw Red Rhodolite Garnet, Square, VS

1.45ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 12.70

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3.00ctw Green Peridot, Square, VVS-VS

3.00ctw Green Peridot, Square, VVS-VS

5 x 5 mm (calibrated)

$ 32.87

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1.39ctw Red Rhodolite Garnet, Square, VS

1.39ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 12.17

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0.53ct Blue Sapphire, Heart, VS

0.53ct Blue Sapphire, Heart, VS

5 x 5 mm (calibrated)

$ 36.95

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0.52ct Green Sapphire, Oval, VVS-VS

0.52ct Green Sapphire, Oval, VVS-VS

5 x 4 mm (calibrated)

$ 38.44

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2.53ctw Red Pyrope Garnet, Square, VS

2.53ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 19.41

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2.16ctw Blue Tanzanite, Pear Shape, VS

2.16ctw Blue Tanzanite, Pear Shape, VS

5.1 x 3.2 mm

$ 82.83

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0.73ct Blue Kyanite, Round, SI

0.73ct Blue Kyanite, Round, SI

5 mm (calibrated)

$ 18.18

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0.30ct Violet Iolite, Baguette, VS

0.30ct Violet Iolite, Baguette, VS

5 x 3 mm (calibrated)

$ 11.95

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1.16ctw Orange Sapphire, Round, VVS-VS

1.16ctw Orange Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 76.33

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3.01ctw Red Rhodolite Garnet, Square, VS

3.01ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 26.35

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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 good place to buy gemstones

Posted By Elansary in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Absolutely love Gem Select. I always know the quality and accuracy of information and photos are top notch. Highly recommend!

Posted By Matthew K. in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.

Posted By JD in July, 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

Very good.

Posted By Tommy in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Navigating the site was very easy and the photos of the exact gem you would be purchasing was well done.

Posted By HVeeder in February, 2026
Source: Bizrate
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