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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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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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0.53ct Yellow Sapphire, Emerald Cut, VVS

0.53ct Yellow Sapphire, Emerald Cut, VVS

5 x 4 mm (calibrated)

$ 28.79

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2.70ctw Green Peridot, Round, VVS-VS

2.70ctw Green Peridot, Round, VVS-VS

5 mm (calibrated)

$ 44.37

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0.42ct Yellow Citrine, Heart, VVS-VS

0.42ct Yellow Citrine, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 3.34

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1.46ctw White Zircon, Round, VVS-VS

1.46ctw White Zircon, Round, VVS-VS

5 mm (calibrated)

$ 38.39

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1.49ctw Red Pyrope Garnet, Square, VS

1.49ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 11.42

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0.38ct Yellow Citrine, Heart, VS

0.38ct Yellow Citrine, Heart, VS

5 x 5 mm (calibrated)

$ 2.65

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1.20ctw Orange Zircon, Oval, VS

1.20ctw Orange Zircon, Oval, VS

5.2 x 4.1 mm

$ 29.88

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0.51ct Pink Tourmaline, Round, Transparent

0.51ct Pink Tourmaline, Round, Transparent

5 mm (calibrated)

$ 20.32

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0.44ct Green Sapphire, Emerald Cut, VVS-VS

0.44ct Green Sapphire, Emerald Cut, VVS-VS

5.2 x 3.3 mm

$ 41.63

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1.66ctw Red Pyrope Garnet, Square, VVS-VS

1.66ctw Red Pyrope Garnet, Square, VVS-VS

5 x 5 mm (calibrated)

$ 12.73

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0.36ct Blue Tanzanite, Pear Shape, VS

0.36ct Blue Tanzanite, Pear Shape, VS

5.1 x 4.2 mm

$ 21.51

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0.57ct Yellow Citrine, Heart, VVS-VS

0.57ct Yellow Citrine, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 3.98

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1.80ctw Multicolor Andalusite, Oval, VS

1.80ctw Multicolor Andalusite, Oval, VS

5.1 x 3.2 mm

$ 96.16

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0.64ct Red Pyrope Garnet, Heart, VVS-VS

0.64ct Red Pyrope Garnet, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 5.10

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1.00ct Orange Hessonite Garnet, Square, SI

1.00ct Orange Hessonite Garnet, Square, SI

5 x 5 mm (calibrated)

$ 16.77

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3.09ctw Orange Sunstone, Round, Translucent

3.09ctw Orange Sunstone, Round, Translucent

5 mm (calibrated)

$ 18.38

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2.42ctw Orange Sapphire, Round, VVS-VS

2.42ctw Orange Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 159.21

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0.37ct Orange Spessartite Garnet, Oval, VS

0.37ct Orange Spessartite Garnet, Oval, VS

4.9 x 3.3 mm

$ 11.06

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0.52ct Orange Zircon, Oval, VS

0.52ct Orange Zircon, Oval, VS

5 x 4 mm (calibrated)

$ 7.77

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2.90ctw Blue Topaz, Oval, VS

2.90ctw Blue Topaz, Oval, VS

4.9 x 3.4 mm

$ 15.89

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0.66ct Red Spinel, Cushion, VS

0.66ct Red Spinel, Cushion, VS

5.1 x 4.3 mm

$ 46.02

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0.58ct Blue Star Sapphire, Oval, Opaque

0.58ct Blue Star Sapphire, Oval, Opaque

4.8 x 3.8 mm

$ 19.26

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1.86ctw Blue Tanzanite, Pear Shape, VS

1.86ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 71.32

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0.49ct White Sapphire, Oval, VS

0.49ct White Sapphire, Oval, VS

5 x 4 mm (calibrated)

$ 26.59

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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 -> 8 star ratings

Site worked well and helped me find a rock that matched what I was looking for. Well within budget and I trust it will show up, so that's definitely positive. Not much else to it. Satisfied.

Posted By Big Ricky in May, 2026
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

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

Overall Rating -> 10 star ratings

GemSelect is always my first choice for purchasing gemstones. The fact that the gems are always exactly as described and pictured on the website has earned my trust many times over. Even when I don't buy, I still love browsing all the beautiful stones. My new favorites are the bright green Tsavorites!

Posted By Lkcisneros in March, 2026
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

Found a beautiful opal at a great price. I was not disappointed when it arrived. Even better in person.

Posted By Fried Rice in August, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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