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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
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Black 5 mm Gemstones
Blue 5 mm Gemstones
Brown 5 mm Gemstones
Golden 5 mm Gemstones
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
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1.55ctw Blue Tanzanite, Pear Shape, VS

1.55ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 59.44

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0.58ct Blue Sapphire, Round, VVS

0.58ct Blue Sapphire, Round, VVS

5 mm (calibrated)

$ 390.71

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0.58ctw Blue Tanzanite, Pear Shape, VVS-VS

0.58ctw Blue Tanzanite, Pear Shape, VVS-VS

5 x 4 mm (calibrated)

$ 34.08

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0.88ctw Pink Sapphire, Oval, VS-SI

0.88ctw Pink Sapphire, Oval, VS-SI

5 x 4 mm (calibrated)

$ 87.65

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1.52ctw Red Rhodolite Garnet, Square, VS

1.52ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 13.30

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2.75ctw Green Peridot, Round, VVS-VS

2.75ctw Green Peridot, Round, VVS-VS

5 mm (calibrated)

$ 45.20

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0.30ct Blue Tanzanite, Pear Shape, VVS-VS
Tanzanite Product Video (503841)

0.30ct Blue Tanzanite, Pear Shape, VVS-VS

5.2 x 4 mm

$ 9.52

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0.78ct Green Peridot, Square, Transparent

0.78ct Green Peridot, Square, Transparent

5 x 5 mm (calibrated)

$ 6.99

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0.63ct Blue Sapphire, Briolette, VS

0.63ct Blue Sapphire, Briolette, VS

5.2 x 3.8 mm

$ 47.06

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0.89ctw Yellow Citrine, Heart, VS

0.89ctw Yellow Citrine, Heart, VS

5 x 5 mm (calibrated)

$ 6.21

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1.03ctw White Rainbow Moonstone, Round, Transparent

1.03ctw White Rainbow Moonstone, Round, Transparent

5 mm (calibrated)

$ 33.86

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0.90ct Orange Hessonite Garnet, Cushion, SI

0.90ct Orange Hessonite Garnet, Cushion, SI

5 x 5 mm (calibrated)

$ 17.75

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2.73ctw Red Rhodolite Garnet, Square, VS

2.73ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 23.90

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0.59ct Red Pyrope Garnet, Heart, VS

0.59ct Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 14.69

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0.37ctw Yellow Sapphire, Marquise, VVS-VS

0.37ctw Yellow Sapphire, Marquise, VVS-VS

5 x 2.5 mm (calibrated)

$ 21.12

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0.43ct Orange Spessartite Garnet, Pear Shape, VS

0.43ct Orange Spessartite Garnet, Pear Shape, VS

4.8 x 3.9 mm

$ 14.99

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4.02ctw Green Amazonite, Cushion, Opaque

4.02ctw Green Amazonite, Cushion, Opaque

5 x 5 mm (calibrated)

$ 9.77

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1.49ctw Red Rhodolite Garnet, Square, VS

1.49ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 13.05

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0.44ct Yellow Sapphire, Emerald Cut, VVS

0.44ct Yellow Sapphire, Emerald Cut, VVS

5 x 4 mm (calibrated)

$ 23.90

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0.41ct Yellow Citrine, Heart, VVS

0.41ct Yellow Citrine, Heart, VVS

5 x 5 mm (calibrated)

$ 3.27

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0.43ct Blue Sapphire, Heart, VS

0.43ct Blue Sapphire, Heart, VS

5 x 4.8 mm

$ 29.98

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0.65ct Blue Star Sapphire, Oval, Opaque

0.65ct Blue Star Sapphire, Oval, Opaque

5 x 4 mm (calibrated)

$ 21.58

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2.21ctw Violet Tanzanite, Pear Shape, VS

2.21ctw Violet Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 84.75

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0.45ct Purple Sapphire, Oval, VS

0.45ct Purple Sapphire, Oval, VS

4.9 x 3.8 mm

$ 39.45

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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

I was looking for high-quality amethyst on this site, and I was able to compare size, color, and weight in detail before making a purchase.

Posted By Atsuhisa in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy process.

Posted By Crafty Seabee in March, 2026
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Overall Rating -> 10 star ratings

It was all good

Posted By Debsarabs in February, 2026
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Overall Rating -> 10 star ratings

IT WAS GREAT SIMPLE I WAS ABLE TO MAKE AN ACCOUNT EASY AND WAS ABLE TO FAVORITE ALL OF MY FINAL SELECTED GEMS, I JUST LOVE IT.

Posted By YE in October, 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 -> 10 star ratings

I have a beautiful emerald I purchased from a company names gemselect and they are awesome! You should try them out?

Posted By Lynn in September, 2025
Source: Bizrate
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