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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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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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0.56ct Blue Spinel, Round, VS

0.56ct Blue Spinel, Round, VS

5 mm (calibrated)

$ 41.83

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0.21ct Violet Iolite, Emerald Cut, VS-SI

0.21ct Violet Iolite, Emerald Cut, VS-SI

4.9 x 2.9 mm

$ 8.37

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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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2.69ctw Purple Rhodolite Garnet, Round, VS

2.69ctw Purple Rhodolite Garnet, Round, VS

5 mm (calibrated)

$ 58.95

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0.64ct Blue Sapphire, Round, VVS-VS
Sapphire Product Video (467440)

0.64ct Blue Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 431.13

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2.62ctw Purple Rhodolite Garnet, Trillion, VS

2.62ctw Purple Rhodolite Garnet, Trillion, VS

5 x 5 mm (calibrated)

$ 22.97

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0.53ct Yellow Sapphire, Emerald Cut, VS

0.53ct Yellow Sapphire, Emerald Cut, VS

5 x 4 mm (calibrated)

$ 28.79

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0.59ct Green Sapphire, Oval, VVS-VS

0.59ct Green Sapphire, Oval, VVS-VS

5.2 x 4.1 mm

$ 43.62

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1.76ctw Red Pyrope Garnet, Square, VS

1.76ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 13.50

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0.58ct Yellow Zircon, Oval, VVS

0.58ct Yellow Zircon, Oval, VVS

5 x 4 mm (calibrated)

$ 8.67

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2.58ctw Purple Rhodolite Garnet, Round, VS

2.58ctw Purple Rhodolite Garnet, Round, VS

5 mm (calibrated)

$ 56.53

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1.42ctw Red Pyrope Garnet, Square, VS

1.42ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 10.89

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0.76ct Green Tourmaline, Round, Transparent

0.76ct Green Tourmaline, Round, Transparent

5 mm (calibrated)

$ 15.14

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1.66ctw White Topaz, Emerald Cut, VVS-VS

1.66ctw White Topaz, Emerald Cut, VVS-VS

5 x 5 mm (calibrated)

$ 11.57

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0.39ct Yellow Citrine, Heart, VVS-VS

0.39ct Yellow Citrine, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 3.10

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0.76ct Green Sapphire, Heart, VS

0.76ct Green Sapphire, Heart, VS

5 x 5 mm (calibrated)

$ 41.57

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1.48ctw Red Pyrope Garnet, Square, VVS-VS

1.48ctw Red Pyrope Garnet, Square, VVS-VS

5 x 5 mm (calibrated)

$ 11.35

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0.58ctw White Sapphire, Oval, VVS-VS

0.58ctw White Sapphire, Oval, VVS-VS

4.8 x 3.2 mm

$ 63.54

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0.51ct Orange Sapphire, Emerald Cut, VVS-VS

0.51ct Orange Sapphire, Emerald Cut, VVS-VS

5 x 4 mm (calibrated)

$ 27.71

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1.24ctw Red Pyrope Garnet, Heart, VS
Pyrope Garnet Product Video (572112)

1.24ctw Red Pyrope Garnet, Heart, VS

5 x 5 mm (calibrated)

$ 29.64

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0.28ct Yellow Color-Change Diaspore, Emerald Cut, VVS-VS

0.28ct Yellow Color-Change Diaspore, Emerald Cut, VVS-VS

5.1 x 3.2 mm

$ 12.32

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0.40ctw Yellow Sapphire, Marquise, VVS

0.40ctw Yellow Sapphire, Marquise, VVS

5 x 2.5 mm (calibrated)

$ 27.40

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0.27ct Violet Amethyst, Emerald Cut, VS

0.27ct Violet Amethyst, Emerald Cut, VS

5 x 3 mm (calibrated)

$ 1.57

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0.41ct Yellow Sapphire, Briolette, VS

0.41ct Yellow Sapphire, Briolette, VS

4.8 x 3.1 mm

$ 36.75

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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

Love, and have always loved, your website.

Posted By Aberabic in July, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

I've purchased things from GemSelect before. What you see is what you get, which is not always the case with gem sites online. You can find some good value with gem select, and I will buy from them again.

Posted By Meyeusername in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

It was good. There was a large selection at prices I could afford.

Posted By Zorah in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I am filling a small treasure chest and picked a nice amethyst.

Posted By VinnyD in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good

Posted By Niska in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I always purchase my stones from GemSelect, their products are high quality and customer service is always great. I also like the fact that I am able to purchase unique items

Posted By Desperaux in November, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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