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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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Multicolor 5 mm Gemstones
Orange 5 mm Gemstones
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Yellow 5 mm Gemstones
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0.99ctw Orange Spessartite Garnet, Oval, VS-SI

0.99ctw Orange Spessartite Garnet, Oval, VS-SI

5 x 4 mm (calibrated)

$ 34.51

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1.26ctw Red Pyrope Garnet, Heart, VS

1.26ctw Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 31.37

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0.60ct Yellow Spessartite Garnet, Oval, VS-SI
Spessartite Garnet Product Video (741455)

0.60ct Yellow Spessartite Garnet, Oval, VS-SI

5.2 x 4.2 mm

$ 19.92

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0.72ct Green Peridot, Square, Transparent

0.72ct Green Peridot, Square, Transparent

5 x 5 mm (calibrated)

$ 6.32

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1.90ctw Blue Tanzanite, Pear Shape, VS

1.90ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 72.86

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0.67ct Green Sapphire, Heart, VS

0.67ct Green Sapphire, Heart, VS

5 x 5 mm (calibrated)

$ 36.65

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1.18ctw Red Pyrope Garnet, Heart, VVS-VS

1.18ctw Red Pyrope Garnet, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 9.06

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0.58ct Orange Sphalerite, Oval, SI

0.58ct Orange Sphalerite, Oval, SI

5.2 x 4.4 mm

$ 28.88

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1.35ctw Yellow Sapphire, Round, VVS-VS

1.35ctw Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 74.29

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1.57ctw Blue Sapphire, Baguette, VVS-VS
Sapphire Product Video (482590)

1.57ctw Blue Sapphire, Baguette, VVS-VS

5 x 3 mm (calibrated)

$ 266.35

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1.24ctw Red Pyrope Garnet, Heart, VS

1.24ctw Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 29.64

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0.44ct Yellow Spessartite Garnet, Pear Shape, VS

0.44ct Yellow Spessartite Garnet, Pear Shape, VS

5 x 4 mm (calibrated)

$ 15.34

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0.76ct Yellow Sapphire, Round, VVS

0.76ct Yellow Sapphire, Round, VVS

5 mm (calibrated)

$ 48.64

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0.70ct Yellow Sapphire, Round, VVS-VS

0.70ct Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 44.80

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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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1.52ctw Red Pyrope Garnet, Square, VVS-VS

1.52ctw Red Pyrope Garnet, Square, VVS-VS

5 x 5 mm (calibrated)

$ 11.65

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0.70ct Green Sapphire, Oval, VVS

0.70ct Green Sapphire, Oval, VVS

5.1 x 4.2 mm

$ 51.74

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0.56ct Yellow Sapphire, Heart, VVS

0.56ct Yellow Sapphire, Heart, VVS

4.9 x 4.7 mm

$ 19.52

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1.25ctw Blue Tanzanite, Pear Shape, VS

1.25ctw Blue Tanzanite, Pear Shape, VS

5 x 3.8 mm

$ 47.94

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0.86ctw Pink Sapphire, Oval, VS-SI

0.86ctw Pink Sapphire, Oval, VS-SI

5 x 4 mm (calibrated)

$ 85.66

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1.02ct Orange Hessonite Garnet, Cushion, SI

1.02ct Orange Hessonite Garnet, Cushion, SI

5 x 5 mm (calibrated)

$ 20.12

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0.60ct Red Pyrope Garnet, Heart, VS

0.60ct Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 14.94

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0.54ct Yellow Spessartite Garnet, Oval, VS

0.54ct Yellow Spessartite Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 18.82

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1.47ctw Yellow Sapphire, Round, VS

1.47ctw Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 80.89

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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

All good

Posted By DouscheGift in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!

Posted By Britnee Rose in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

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

Posted By Designer in December, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Very easy to navigate with a great selection.

Posted By Bar181 in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good, hope gem quality is good and genuine

Posted By Varun in May, 2026
Source: Bizrate

Overall Rating -> 7 star ratings

easy interface for a pricless buy

Posted By Zeak in May, 2026
Source: Bizrate
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