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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
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
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Lots
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1.05ctw Violet Amethyst, Cushion, Transparent

1.05ctw Violet Amethyst, Cushion, Transparent

5 x 5 mm (calibrated)

$ 7.32

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4.34ctw Orange Hessonite Garnet, Emerald Cut, VS

4.34ctw Orange Hessonite Garnet, Emerald Cut, VS

5 x 5 mm (calibrated)

$ 85.59

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1.11ctw Violet Amethyst, Cushion, Transparent

1.11ctw Violet Amethyst, Cushion, Transparent

5 x 5 mm (calibrated)

$ 7.74

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1.49ctw Blue Apatite, Oval, VS-SI

1.49ctw Blue Apatite, Oval, VS-SI

5 x 4 mm (calibrated)

$ 30.78

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1.47ctw Red Pyrope Garnet, Square, VVS-VS

1.47ctw Red Pyrope Garnet, Square, VVS-VS

5 x 5 mm (calibrated)

$ 11.27

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0.44ct Yellow Citrine, Heart, VVS

0.44ct Yellow Citrine, Heart, VVS

5 x 5 mm (calibrated)

$ 3.50

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0.78ct Green Tourmaline, Emerald Cut, VVS

0.78ct Green Tourmaline, Emerald Cut, VVS

4.9 x 4.6 mm

$ 38.84

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2.32ctw Blue Apatite, Oval, VS

2.32ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 50.96

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1.28ctw Blue Apatite, Oval, VS

1.28ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 28.12

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1.04ctw Violet Amethyst, Cushion, Transparent

1.04ctw Violet Amethyst, Cushion, Transparent

5 x 5 mm (calibrated)

$ 7.25

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0.57ct Pink Spinel, Round, VS
Spinel Product Video (754471)

0.57ct Pink Spinel, Round, VS

5 mm (calibrated)

$ 42.58

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1.27ctw Blue Tanzanite, Pear Shape, VS

1.27ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 44.27

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1.54ctw Blue Apatite, Oval, VS

1.54ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 33.83

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3.33ctw Green Peridot, Round, VVS-VS

3.33ctw Green Peridot, Round, VVS-VS

5 mm (calibrated)

$ 49.75

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0.62ct Blue Sapphire, Cushion, VS

0.62ct Blue Sapphire, Cushion, VS

5 x 4 mm (calibrated)

$ 74.10

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1.55ctw Yellow Sapphire, Round, VS

1.55ctw Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 70.32

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0.44ct Green Sapphire, Oval, VS

0.44ct Green Sapphire, Oval, VS

5 x 4 mm (calibrated)

$ 32.53

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0.55ct Red Pyrope Garnet, Heart, VS

0.55ct Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 13.70

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0.81ct Purple Spinel, Cushion, VS
Spinel Product Video (691932)

0.81ct Purple Spinel, Cushion, VS

5 x 5 mm (calibrated)

$ 56.47

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1.10ctw Blue Sapphire, Round, VVS-VS
Sapphire Product Video (479336)

1.10ctw Blue Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 767.81

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0.56ct Orange Spessartite Garnet, Oval, VS

0.56ct Orange Spessartite Garnet, Oval, VS

5.1 x 4.2 mm

$ 19.52

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0.57ct Red Pyrope Garnet, Heart, VVS-VS

0.57ct Red Pyrope Garnet, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 14.19

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2.95ctw Orange Sapphire, Marquise, VVS-VS

2.95ctw Orange Sapphire, Marquise, VVS-VS

4.8 x 2.4 mm

$ 74.34

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0.43ct Orange Sapphire, Pear Shape, VVS-VS

0.43ct Orange Sapphire, Pear Shape, VVS-VS

5 x 4 mm (calibrated)

$ 64.24

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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

Easy and functional

Posted By Dessa in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I was able to find what I wanted very easily!

Posted By Lenny in January, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Fast and reliable service.

Posted By Zæck in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great selection. Maybe too great i kept adding and deleting stuff because i found better looking ones

Posted By Edsor works in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

GemSelect offers excellent choices, prices & service- highly recommended! Unfortunately, prior to ordering a replacement gemstone, my jeweler neglected to mention it needed to be one that was a'cushion cuta' to fit the existing mount. Have yet to return/exchangea'

Posted By CJ in March, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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