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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
Cabochons
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2.63ctw Multicolor Sapphire, Briolette, VS

2.63ctw Multicolor Sapphire, Briolette, VS

5.2 x 3.7 mm

$ 72.04

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0.44ct Orange Spessartite Garnet, Oval, VS

0.44ct Orange Spessartite Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 13.15

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2.03ctw Blue Tanzanite, Pear Shape, VS

2.03ctw Blue Tanzanite, Pear Shape, VS

5.1 x 3.2 mm

$ 77.85

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0.62ct Orange Zircon, Oval, VVS

0.62ct Orange Zircon, Oval, VVS

5.2 x 4.2 mm

$ 15.44

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0.39ct Red Ruby, Oval, VS

0.39ct Red Ruby, Oval, VS

4.9 x 3.8 mm

$ 108.76

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0.44ct Orange Spessartite Garnet, Oval, VS

0.44ct Orange Spessartite Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 15.34

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2.15ctw Blue Apatite, Oval, VS

2.15ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 47.23

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0.55ct Orange Sapphire, Emerald Cut, VVS

0.55ct Orange Sapphire, Emerald Cut, VVS

4.9 x 3.9 mm

$ 29.88

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1.61ctw Red Rhodolite Garnet, Square, VS

1.61ctw Red Rhodolite Garnet, Square, VS

4.9 x 4.7 mm

$ 14.09

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1.54ctw Red Rhodolite Garnet, Square, VS

1.54ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 13.48

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2.32ctw Yellow Sapphire, Round, VVS-VS

2.32ctw Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 152.64

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1.28ctw Yellow Sapphire, Round, VS

1.28ctw Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 81.91

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1.94ctw Blue Tanzanite, Pear Shape, VS

1.94ctw Blue Tanzanite, Pear Shape, VS

5 x 3.2 mm

$ 74.39

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2.33ctw Yellow Sapphire, Round, VVS-VS

2.33ctw Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 153.29

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1.15ctw Red Pyrope Garnet, Heart, VS

1.15ctw Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 30.24

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2.70ctw Blue Topaz, Oval, VS

2.70ctw Blue Topaz, Oval, VS

5.1 x 3.2 mm

$ 12.33

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1.81ctw Blue Tanzanite, Pear Shape, VS

1.81ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 69.41

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5.15ctw Purple Rhodolite Garnet, Trillion, VS

5.15ctw Purple Rhodolite Garnet, Trillion, VS

5 x 5 mm (calibrated)

$ 45.14

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0.72ctw Pink Sapphire, Oval, VS

0.72ctw Pink Sapphire, Oval, VS

5 x 4 mm (calibrated)

$ 53.49

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1.11ctw Blue Sapphire, Round, VS

1.11ctw Blue Sapphire, Round, VS

5 mm (calibrated)

$ 442.22

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3.04ctw Green Tsavorite Garnet, Pear Shape, VS

3.04ctw Green Tsavorite Garnet, Pear Shape, VS

5 x 3 mm (calibrated)

$ 166.53

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0.77ct Blue Kyanite, Round, SI

0.77ct Blue Kyanite, Round, SI

5 mm (calibrated)

$ 19.17

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0.27ct Violet Iolite, Emerald Cut, VS

0.27ct Violet Iolite, Emerald Cut, VS

5 x 3 mm (calibrated)

$ 10.76

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3.06ctw Blue Topaz, Oval, VS

3.06ctw Blue Topaz, Oval, VS

5 x 3.2 mm

$ 16.77

View Gem

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 -> 8 star ratings

I've purchased things from GemSelect before. What you see is what you get, which is not always the case with gem sites online. You can find some good value with gem select, and I will buy from them again.

Posted By Meyeusername in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I love the products. I've bought them as gifts and people love my gifts

Posted By Love it! in February, 2026
Source: Bizrate

Overall Rating -> 8 star ratings

I visited several online loose stone shops trying to find rare stones. I finally found one that I've been looking for here, and very satisfied. Looking forward to receive the item in 3 weeks.

Posted By Atsu in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.

Posted By Tim W in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I feel Gemselect is a trustworthy company to buy from

Posted By Becky in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and functional

Posted By Dessa in March, 2026
Source: Bizrate
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