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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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2.32ctw Yellow Sapphire, Round, VVS-VS

2.32ctw Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 152.64

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0.56ct Green Cat'S Eye Alexandrite, Oval, Opaque

0.56ct Green Cat'S Eye Alexandrite, Oval, Opaque

5 x 4.2 mm

$ 116.20

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0.83ct Yellow Color-Change Diaspore, Square, VVS-VS

0.83ct Yellow Color-Change Diaspore, Square, VVS-VS

5 x 5 mm (calibrated)

$ 34.30

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0.46ct Yellow Citrine, Cushion, VVS-VS

0.46ct Yellow Citrine, Cushion, VVS-VS

5 x 5 mm (calibrated)

$ 3.44

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0.34ct Blue Tanzanite, Pear Shape, VS

0.34ct Blue Tanzanite, Pear Shape, VS

5 x 4 mm (calibrated)

$ 20.32

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0.41ct Yellow Sapphire, Emerald Cut, VS

0.41ct Yellow Sapphire, Emerald Cut, VS

5.2 x 3.2 mm

$ 18.57

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1.97ctw Blue Tanzanite, Pear Shape, VS

1.97ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 75.55

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0.33ct Gray Cat'S Eye Alexandrite, Oval, Opaque

0.33ct Gray Cat'S Eye Alexandrite, Oval, Opaque

5 x 3.4 mm

$ 54.78

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0.39ct White Zircon, Oval, VVS-VS
Zircon Product Video (691510)

0.39ct White Zircon, Oval, VVS-VS

5 x 3.2 mm

$ 3.02

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1.49ctw White Zircon, Round, VVS-VS

1.49ctw White Zircon, Round, VVS-VS

5 mm (calibrated)

$ 44.07

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0.61ct Orange Zircon, Oval, VS

0.61ct Orange Zircon, Oval, VS

5 x 4 mm (calibrated)

$ 15.19

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1.35ctw Yellow Sapphire, Round, VVS-VS

1.35ctw Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 88.83

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2.35ctw Blue Tanzanite, Pear Shape, VS

2.35ctw Blue Tanzanite, Pear Shape, VS

5.1 x 3.2 mm

$ 90.12

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1.55ctw Blue Sapphire, Baguette, VS

1.55ctw Blue Sapphire, Baguette, VS

5 x 2.8 mm

$ 262.96

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1.51ctw Red Pyrope Garnet, Square, VS

1.51ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 11.59

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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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4.97ctw Blue Zircon, Oval, VS
Zircon Product Video (444870)

4.97ctw Blue Zircon, Oval, VS

5 x 3.2 mm

$ 109.40

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0.56ct Pink Tourmaline, Round, Transparent

0.56ct Pink Tourmaline, Round, Transparent

5 mm (calibrated)

$ 22.31

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0.57ct Green Sapphire, Oval, VVS

0.57ct Green Sapphire, Oval, VVS

5 x 4 mm (calibrated)

$ 42.14

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0.87ctw Yellow Citrine, Heart, VS

0.87ctw Yellow Citrine, Heart, VS

5 x 5 mm (calibrated)

$ 6.07

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0.39ctw Orange Sapphire, Marquise, VS

0.39ctw Orange Sapphire, Marquise, VS

4.9 x 2.5 mm

$ 12.82

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0.66ct Yellow Sapphire, Round, VS

0.66ct Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 40.25

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0.33ct Violet Iolite, Baguette, VS-SI

0.33ct Violet Iolite, Baguette, VS-SI

5 x 3 mm (calibrated)

$ 13.15

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0.48ct Orange Spessartite Garnet, Oval, VS-SI

0.48ct Orange Spessartite Garnet, Oval, VS-SI

5 x 4.2 mm

$ 16.73

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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

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

Overall Rating -> 9 star ratings

I do enjoy this website and the wide selection. I would like to see more untreated stones. I also wasn't able to see my past order when I logged in.

Posted By Great selection, ok website in July, 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

Very good.

Posted By Tommy in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10

Posted By KT in September, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It was fine . Wish there had been more round stones to select from

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