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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
Pairs
Lots
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6.97ctw White Topaz, Square, VVS-VS

6.97ctw White Topaz, Square, VVS-VS

5 x 5 mm (calibrated)

$ 55.64

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0.60ct Yellow Color-Change Diaspore, Cushion, VS

0.60ct Yellow Color-Change Diaspore, Cushion, VS

4.9 x 4.7 mm

$ 21.03

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0.63ct Green Sapphire, Oval, VVS-VS

0.63ct Green Sapphire, Oval, VVS-VS

4.9 x 4.2 mm

$ 46.57

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0.47ct Yellow Citrine, Heart, VVS-VS

0.47ct Yellow Citrine, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 3.74

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0.88ctw Yellow Citrine, Heart, VVS-VS

0.88ctw Yellow Citrine, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 7.01

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3.12ctw Green Peridot, Round, VVS-VS

3.12ctw Green Peridot, Round, VVS-VS

5 mm (calibrated)

$ 51.28

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0.79ct Green Sapphire, Cushion, VS

0.79ct Green Sapphire, Cushion, VS

5 x 5 mm (calibrated)

$ 62.95

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0.49ct Orange Spessartite Garnet, Oval, VS-SI

0.49ct Orange Spessartite Garnet, Oval, VS-SI

5 x 4 mm (calibrated)

$ 17.08

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0.36ct Orange Sapphire, Pear Shape, VVS-VS

0.36ct Orange Sapphire, Pear Shape, VVS-VS

5 x 4 mm (calibrated)

$ 20.08

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0.70ctw Pink Sapphire, Oval, VS

0.70ctw Pink Sapphire, Oval, VS

5 x 4 mm (calibrated)

$ 69.76

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0.25ct Violet Iolite, Emerald Cut, VS

0.25ct Violet Iolite, Emerald Cut, VS

5 x 3 mm (calibrated)

$ 9.96

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1.27ctw Yellow Sapphire, Round, VS

1.27ctw Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 69.14

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2.83ctw Blue Topaz, Oval, VS

2.83ctw Blue Topaz, Oval, VS

5 x 3.1 mm

$ 12.92

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0.79ctw Green Sapphire, Oval, VVS-VS

0.79ctw Green Sapphire, Oval, VVS-VS

5 x 4 mm (calibrated)

$ 58.40

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0.55ct Blue Sapphire, Round, VVS-VS

0.55ct Blue Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 327.39

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2.63ctw Red Pyrope Garnet, Square, VS

2.63ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 20.17

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0.60ct Pink Tourmaline, Round, Transparent

0.60ct Pink Tourmaline, Round, Transparent

5 mm (calibrated)

$ 23.90

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0.45ct Purple Sapphire, Oval, VS

0.45ct Purple Sapphire, Oval, VS

5 x 4 mm (calibrated)

$ 34.07

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0.81ct Green Sapphire, Cushion, VVS

0.81ct Green Sapphire, Cushion, VVS

5 x 5 mm (calibrated)

$ 64.54

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0.66ct Gray Cat'S Eye Alexandrite, Round, Opaque

0.66ct Gray Cat'S Eye Alexandrite, Round, Opaque

5 mm (calibrated)

$ 132.00

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0.64ctw Yellow Sapphire, Baguette, VS

0.64ctw Yellow Sapphire, Baguette, VS

5 x 3 mm (calibrated)

$ 24.54

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3.12ctw Red Rhodolite Garnet, Square, VS

3.12ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 27.31

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1.46ctw Red Rhodolite Garnet, Square, VS

1.46ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 12.79

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0.68ct Green Sapphire, Heart, VS

0.68ct Green Sapphire, Heart, VS

5 x 5 mm (calibrated)

$ 37.20

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 -> 10 star ratings

I liked the selection of gems, and price. I did not like your PayPal process. I already have a PP account and you want me to sign up for another.

Posted By CLTCJH in May, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Everything was good, the purchase was what I expected and what they show is what you get.

Posted By Mr. in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

hassle free experience.

Posted By Jhidron in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoy viewing the selections. Excellent product

Posted By ToRa.62 in April, 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

Wonderful purchase, can't wait to see the stone.

Posted By Tim in January, 2026
Source: Bizrate
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