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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
Blue 5 mm Gemstones
Brown 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
Violet 5 mm Gemstones
White 5 mm Gemstones
Yellow 5 mm Gemstones
Single
Pairs
Lots
Faceted
Cabochons
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1.52ctw Red Rhodolite Garnet, Square, VS

1.52ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 16.02

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0.67ct Green Tourmaline, Round, Transparent

0.67ct Green Tourmaline, Round, Transparent

5 mm (calibrated)

$ 16.08

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0.51ct Pink Tourmaline, Round, Transparent

0.51ct Pink Tourmaline, Round, Transparent

5 mm (calibrated)

$ 24.48

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0.56ct Orange Sphalerite, Round, SI

0.56ct Orange Sphalerite, Round, SI

5 mm (calibrated)

$ 33.60

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0.37ct Pink Morganite, Trillion, VVS-VS

0.37ct Pink Morganite, Trillion, VVS-VS

5 x 4.8 mm

$ 19.98

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0.69ct Green Sapphire, Emerald Cut, VVS

0.69ct Green Sapphire, Emerald Cut, VVS

5 x 4 mm (calibrated)

$ 45.17

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2.46ctw Red Pyrope Garnet, Square, VS

2.46ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 22.73

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1.89ctw Blue Tanzanite, Pear Shape, VS

1.89ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 87.32

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0.41ct Yellow Sapphire, Emerald Cut, VS

0.41ct Yellow Sapphire, Emerald Cut, VS

5.2 x 3.2 mm

$ 22.37

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1.09ctw Red Pyrope Garnet, Heart, VVS-VS

1.09ctw Red Pyrope Garnet, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 32.70

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1.07ctw Red Pyrope Garnet, Heart, VS

1.07ctw Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 32.10

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0.45ct White Zircon, Oval, VS

0.45ct White Zircon, Oval, VS

5 x 3 mm (calibrated)

$ 26.46

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0.28ct Violet Iolite, Emerald Cut, VS

0.28ct Violet Iolite, Emerald Cut, VS

5 x 3 mm (calibrated)

$ 13.44

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0.40ct Pink Tourmaline, Round, Transparent

0.40ct Pink Tourmaline, Round, Transparent

5 mm (calibrated)

$ 19.20

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0.79ctw White Zircon, Oval, VVS

0.79ctw White Zircon, Oval, VVS

5 x 3 mm (calibrated)

$ 46.45

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0.46ct Pink Sapphire, Oval, VS

0.46ct Pink Sapphire, Oval, VS

5.1 x 4.2 mm

$ 55.20

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0.64ct Blue Sapphire, Heart, VS

0.64ct Blue Sapphire, Heart, VS

4.9 x 4.8 mm

$ 53.76

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0.45ct Yellow Citrine, Heart, VVS

0.45ct Yellow Citrine, Heart, VVS

5 x 5 mm (calibrated)

$ 4.32

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0.58ctw White Sapphire, Oval, VVS-VS

0.58ctw White Sapphire, Oval, VVS-VS

4.9 x 3.2 mm

$ 76.56

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0.46ct Orange Sapphire, Pear Shape, VS

0.46ct Orange Sapphire, Pear Shape, VS

5.2 x 4.1 mm

$ 82.80

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2.65ctw Green Peridot, Round, VVS-VS

2.65ctw Green Peridot, Round, VVS-VS

5 mm (calibrated)

$ 52.48

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0.64ct Yellow Citrine, Cushion, Transparent

0.64ct Yellow Citrine, Cushion, Transparent

5 x 5 mm (calibrated)

$ 5.76

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1.43ctw Red Pyrope Garnet, Square, VS

1.43ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 13.21

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0.63ct Pink Tourmaline, Round, Transparent

0.63ct Pink Tourmaline, Round, Transparent

5 mm (calibrated)

$ 30.24

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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

Great experience. I can't wait to explore on the website further.

Posted By Kymmie in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent options

Posted By CJ in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 2026
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

Loved the price and the quality and the certification options which is the main reason why I buy. The guarantee is also a great reason to use gem select.

Posted By Sal in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great! Affordable

Posted By Spinellope in April, 2026
Source: Bizrate
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