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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
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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0.46ct Green Sapphire, Emerald Cut, VVS

0.46ct Green Sapphire, Emerald Cut, VVS

5.1 x 3.1 mm

$ 43.53

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0.41ct Green Sapphire, Oval, VS

0.41ct Green Sapphire, Oval, VS

5 x 4 mm (calibrated)

$ 30.31

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1.07ctw Red Pyrope Garnet, Heart, VVS-VS

1.07ctw Red Pyrope Garnet, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 8.52

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0.25ct Green Tsavorite Garnet, Oval, VVS-VS

0.25ct Green Tsavorite Garnet, Oval, VVS-VS

5 x 3 mm (calibrated)

$ 12.45

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0.62ct Blue Star Sapphire, Oval, Opaque

0.62ct Blue Star Sapphire, Oval, Opaque

5.1 x 4.2 mm

$ 20.58

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0.61ctw Pink Sapphire, Oval, VVS-VS

0.61ctw Pink Sapphire, Oval, VVS-VS

5 x 3 mm (calibrated)

$ 66.83

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0.69ct Yellow Tourmaline, Round, Transparent

0.69ct Yellow Tourmaline, Round, Transparent

5 mm (calibrated)

$ 13.74

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0.69ct Blue Kyanite, Round, SI

0.69ct Blue Kyanite, Round, SI

5 mm (calibrated)

$ 17.18

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0.37ctw Purple Sapphire, Marquise, VS

0.37ctw Purple Sapphire, Marquise, VS

5.2 x 2.7 mm

$ 32.24

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0.19ct Orange Sapphire, Marquise, VVS-VS
Sapphire Product Video (509600)

0.19ct Orange Sapphire, Marquise, VVS-VS

4.9 x 2.6 mm

$ 3.67

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1.54ctw Blue Tanzanite, Pear Shape, VS

1.54ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 59.05

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0.95ctw Red Pyrope Garnet, Heart, VVS-VS

0.95ctw Red Pyrope Garnet, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 7.29

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0.52ct Yellow Sphalerite, Oval, VS-SI

0.52ct Yellow Sphalerite, Oval, VS-SI

5 x 4 mm (calibrated)

$ 25.90

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2.88ctw Red Pyrope Garnet, Square, VS

2.88ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 22.09

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2.01ctw Blue Apatite, Oval, VS

2.01ctw Blue Apatite, Oval, VS

5.2 x 4.1 mm

$ 44.16

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0.53ct Yellow Citrine, Cushion, VVS-VS

0.53ct Yellow Citrine, Cushion, VVS-VS

5.2 x 5.1 mm

$ 3.96

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5.92ctw Multicolor Opal, Square, Transparent

5.92ctw Multicolor Opal, Square, Transparent

4.8 x 4.7 mm

$ 42.03

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0.42ctw Purple Sapphire, Marquise, VS

0.42ctw Purple Sapphire, Marquise, VS

5.1 x 2.8 mm

$ 36.60

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2.98ctw Red Pyrope Garnet, Square, VS

2.98ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 22.86

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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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0.56ct Red Pyrope Garnet, Heart, VVS-VS

0.56ct Red Pyrope Garnet, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 13.94

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0.54ct Orange Sphalerite, Oval, SI

0.54ct Orange Sphalerite, Oval, SI

4.9 x 4.2 mm

$ 26.89

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1.60ctw Red Rhodolite Garnet, Square, VS

1.60ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 14.00

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0.46ct Green Sapphire, Emerald Cut, VS

0.46ct Green Sapphire, Emerald Cut, VS

5.2 x 3.2 mm

$ 43.53

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

easy site to navigate

Posted By Curt's Cabochons in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, using for custom jewlery for my wife.

Posted By Smitty in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.

Posted By DNaber in October, 2025
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Overall Rating -> 10 star ratings

I have purchased stones from gem select in the past and have been very satisfied. I expect to repeat that experience with this purchase as well

Posted By Marti in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love how easy the site is to use. Really love that the pictures are of actual product.

Posted By LeAnn in January, 2026
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Overall Rating -> 10 star ratings

I had a very easy time navigating the web page and using filters to find what I was looking for. The varied selection was nice to see and pricing is clear and fair.

Posted By Mattick in May, 2026
Source: Bizrate
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