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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
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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
Purple 5 mm Gemstones
Red 5 mm Gemstones
Turquoise 5 mm Gemstones
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White 5 mm Gemstones
Yellow 5 mm Gemstones
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1.48ctw Blue Tanzanite, Pear Shape, VS

1.48ctw Blue Tanzanite, Pear Shape, VS

5.1 x 3.2 mm

$ 56.76

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0.63ct Pink Tourmaline, Round, Transparent

0.63ct Pink Tourmaline, Round, Transparent

5 mm (calibrated)

$ 25.10

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1.76ctw Green Sapphire, Oval, VS

1.76ctw Green Sapphire, Oval, VS

5 x 4 mm (calibrated)

$ 46.71

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0.41ct Green Emerald, Round, Transparent

0.41ct Green Emerald, Round, Transparent

5 mm (calibrated)

$ 16.33

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2.04ctw Orange Sapphire, Round, VS

2.04ctw Orange Sapphire, Round, VS

5 mm (calibrated)

$ 134.21

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0.42ct Green Sapphire, Oval, VS

0.42ct Green Sapphire, Oval, VS

5 x 4 mm (calibrated)

$ 31.04

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0.52ct Orange Sapphire, Oval, VVS

0.52ct Orange Sapphire, Oval, VVS

5 x 4 mm (calibrated)

$ 77.69

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4.52ctw Purple Rhodolite Garnet, Trillion, VS

4.52ctw Purple Rhodolite Garnet, Trillion, VS

5 x 5 mm (calibrated)

$ 39.62

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1.82ctw Red Pyrope Garnet, Square, VS

1.82ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 13.95

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1.35ctw Blue Tanzanite, Pear Shape, VS

1.35ctw Blue Tanzanite, Pear Shape, VS

5.1 x 3.2 mm

$ 51.78

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1.31ctw Red Pyrope Garnet, Square, VVS-VS

1.31ctw Red Pyrope Garnet, Square, VVS-VS

5 x 5 mm (calibrated)

$ 10.05

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0.54ct Green Sapphire, Oval, VS

0.54ct Green Sapphire, Oval, VS

5.1 x 4.2 mm

$ 39.92

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0.66ct Yellow Zircon, Oval, VVS

0.66ct Yellow Zircon, Oval, VVS

5.1 x 4.2 mm

$ 9.86

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0.57ct Blue Sapphire, Heart, VS

0.57ct Blue Sapphire, Heart, VS

5 x 5 mm (calibrated)

$ 39.74

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0.31ct Purple Sapphire, Oval, VVS-VS

0.31ct Purple Sapphire, Oval, VVS-VS

5.2 x 4.1 mm

$ 30.88

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0.81ct Red Ruby, Round, VS

0.81ct Red Ruby, Round, VS

5 mm (calibrated)

$ 72.61

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0.64ct Blue Sapphire, Round, VVS
Sapphire Product Video (467403)

0.64ct Blue Sapphire, Round, VVS

5 mm (calibrated)

$ 431.13

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1.80ctw Green Demantoid Garnet, Oval, VS

1.80ctw Green Demantoid Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 197.21

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0.42ct Orange Sapphire, Pear Shape, VVS-VS

0.42ct Orange Sapphire, Pear Shape, VVS-VS

4.9 x 3.8 mm

$ 23.42

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0.57ctw Blue Topaz, Oval, VVS-VS

0.57ctw Blue Topaz, Oval, VVS-VS

5 x 3 mm (calibrated)

$ 4.54

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3.09ctw Green Peridot, Round, VVS-VS

3.09ctw Green Peridot, Round, VVS-VS

5 mm (calibrated)

$ 50.79

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1.15ctw Brown Moonstone, Round, Translucent

1.15ctw Brown Moonstone, Round, Translucent

5 mm (calibrated)

$ 6.31

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0.45ct Orange Sapphire, Pear Shape, VVS-VS

0.45ct Orange Sapphire, Pear Shape, VVS-VS

5.2 x 4 mm

$ 67.23

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0.24ct Green Peridot, Oval, VVS-VS
Peridot Product Video (503311)

0.24ct Green Peridot, Oval, VVS-VS

5 x 3 mm (calibrated)

$ 2.18

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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

easy site to navigate

Posted By Curt's Cabochons in June, 2025
Source: Bizrate

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 -> 9 star ratings

Very easy to navigate with a great selection.

Posted By Bar181 in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

The citrine gems are beautiful. I appreciated that each stone was individually shown on the website so I could see exactly what I was getting. No mystery person selecting random stones for me. The documentation included with each gem was high quality as well. Great price and arrived as expected.

Posted By Jen in December, 2025
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

The website was very easy to use.

Posted By Garnet in January, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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