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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

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For Example: 6-7
For Example: 8-9
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Black 5 mm Gemstones
Blue 5 mm Gemstones
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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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8.31ctw White Topaz, Square, VVS

8.31ctw White Topaz, Square, VVS

5 x 5 mm (calibrated)

$ 69.52

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1.09ctw Yellow Sapphire, Round, VS

1.09ctw Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 59.35

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0.34ctw Yellow Sapphire, Marquise, VS

0.34ctw Yellow Sapphire, Marquise, VS

5 x 2.5 mm (calibrated)

$ 23.30

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0.35ct Blue Tanzanite, Pear Shape, VS

0.35ct Blue Tanzanite, Pear Shape, VS

5 x 4 mm (calibrated)

$ 20.92

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1.39ctw Blue Apatite, Oval, VS

1.39ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 30.54

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0.53ct Blue Kyanite, Round, SI

0.53ct Blue Kyanite, Round, SI

5 mm (calibrated)

$ 13.20

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3.54ctw Purple Rhodolite Garnet, Oval, VS

3.54ctw Purple Rhodolite Garnet, Oval, VS

5 x 3 mm (calibrated)

$ 38.28

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1.19ctw Yellow Sapphire, Round, VS

1.19ctw Yellow Sapphire, Round, VS

5 mm (calibrated)

$ 64.78

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0.75ctw Green Sapphire, Oval, VS

0.75ctw Green Sapphire, Oval, VS

4.8 x 3.9 mm

$ 55.44

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1.20ctw Blue Kyanite, Round, SI

1.20ctw Blue Kyanite, Round, SI

5 mm (calibrated)

$ 29.88

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0.85ct Orange Hessonite Garnet, Cushion, SI

0.85ct Orange Hessonite Garnet, Cushion, SI

5 x 5 mm (calibrated)

$ 16.77

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0.70ct Pink Tourmaline, Round, Transparent

0.70ct Pink Tourmaline, Round, Transparent

5 mm (calibrated)

$ 27.89

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0.28ct Violet Iolite, Baguette, VS-SI

0.28ct Violet Iolite, Baguette, VS-SI

5 x 3 mm (calibrated)

$ 11.16

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1.57ctw Blue Apatite, Oval, VS

1.57ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 34.49

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2.12ctw Blue Apatite, Oval, VS

2.12ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 46.57

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0.52ct Yellow Sapphire, Emerald Cut, VS

0.52ct Yellow Sapphire, Emerald Cut, VS

5 x 3.8 mm

$ 28.25

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0.65ct Yellow Color-Change Diaspore, Cushion, VS

0.65ct Yellow Color-Change Diaspore, Cushion, VS

5 x 5 mm (calibrated)

$ 22.79

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1.55ctw Red Pyrope Garnet, Square, VS

1.55ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 11.89

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0.88ctw Yellow Citrine, Heart, VVS

0.88ctw Yellow Citrine, Heart, VVS

5 x 5 mm (calibrated)

$ 7.01

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1.88ctw Green Demantoid Garnet, Oval, VS
Demantoid Garnet Product Video (458350)

1.88ctw Green Demantoid Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 205.97

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2.23ctw Blue Apatite, Oval, VS

2.23ctw Blue Apatite, Oval, VS

5 x 4 mm (calibrated)

$ 48.99

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1.62ctw Red Pyrope Garnet, Square, VS

1.62ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 12.42

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1.33ctw Red Pyrope Garnet, Square, VVS-VS

1.33ctw Red Pyrope Garnet, Square, VVS-VS

5 x 5 mm (calibrated)

$ 10.20

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2.80ctw Yellow Sapphire, Round, VVS-VS

2.80ctw Yellow Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 152.43

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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

The website has a good selection, the interface is very intuitive.

Posted By PhoenixFeatherJewelry in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

the selection is good as are the prices

Posted By Old man in August, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

If you have motion picture, then I will be more satisfied with.

Posted By Ray in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have been very happy with my prior purchases and enjoy the website experience.

Posted By Trouble in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoy every moment

Posted By Ferns in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!

Posted By Britnee Rose in September, 2025
Source: Bizrate
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