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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
Bi-color
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
Pairs
Lots
Faceted
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1.83ctw Green Demantoid Garnet, Oval, VS-SI

1.83ctw Green Demantoid Garnet, Oval, VS-SI

5 x 3.9 mm

$ 200.49

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0.81ct Yellow Color-Change Diaspore, Cushion, VVS-VS

0.81ct Yellow Color-Change Diaspore, Cushion, VVS-VS

5.2 x 5.3 mm

$ 28.39

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0.57ct Red Pyrope Garnet, Heart, VVS-VS

0.57ct Red Pyrope Garnet, Heart, VVS-VS

5 x 5 mm (calibrated)

$ 14.19

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2.60ctw Red Rhodolite Garnet, Square, VS

2.60ctw Red Rhodolite Garnet, Square, VS

4.8 x 4.8 mm

$ 22.76

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0.27ct Violet Iolite, Emerald Cut, VS-SI

0.27ct Violet Iolite, Emerald Cut, VS-SI

5 x 3 mm (calibrated)

$ 10.76

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0.60ctw Purple Sapphire, Oval, VVS-VS

0.60ctw Purple Sapphire, Oval, VVS-VS

5 x 3.1 mm

$ 65.74

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0.96ct Orange Hessonite Garnet, Cushion, SI

0.96ct Orange Hessonite Garnet, Cushion, SI

5 x 5 mm (calibrated)

$ 18.93

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0.32ct Purple Sapphire, Oval, VS

0.32ct Purple Sapphire, Oval, VS

5 x 4 mm (calibrated)

$ 31.86

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0.38ct Green Emerald, Oval, SI

0.38ct Green Emerald, Oval, SI

5 x 4 mm (calibrated)

$ 37.85

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0.79ct Purple Spinel, Cushion, VVS-VS

0.79ct Purple Spinel, Cushion, VVS-VS

5 x 5 mm (calibrated)

$ 55.08

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0.59ct Blue Sapphire, Round, VVS

0.59ct Blue Sapphire, Round, VVS

5 mm (calibrated)

$ 351.21

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0.60ct Red Pyrope Garnet, Heart, VVS

0.60ct Red Pyrope Garnet, Heart, VVS

5 x 5 mm (calibrated)

$ 4.78

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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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1.48ctw Green Demantoid Garnet, Oval, VS

1.48ctw Green Demantoid Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 162.15

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0.78ctw White Zircon, Oval, VVS
Zircon Product Video (629235)

0.78ctw White Zircon, Oval, VVS

5.1 x 3.1 mm

$ 38.06

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1.38ctw Blue Tanzanite, Pear Shape, VS

1.38ctw Blue Tanzanite, Pear Shape, VS

5.1 x 3.8 mm

$ 52.92

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0.93ctw Orange Spessartite Garnet, Oval, VS

0.93ctw Orange Spessartite Garnet, Oval, VS

5 x 4 mm (calibrated)

$ 32.42

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0.45ct Yellow Citrine, Cushion, VS

0.45ct Yellow Citrine, Cushion, VS

5 x 5 mm (calibrated)

$ 3.36

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1.24ctw Blue Tanzanite, Pear Shape, VS

1.24ctw Blue Tanzanite, Pear Shape, VS

5 x 3 mm (calibrated)

$ 47.55

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8.24ctw White Topaz, Square, VS
Topaz Product Video (341423)

8.24ctw White Topaz, Square, VS

5 x 5 mm (calibrated)

$ 68.77

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0.51ctw Purple Sapphire, Oval, VS

0.51ctw Purple Sapphire, Oval, VS

4.9 x 3.1 mm

$ 44.45

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0.56ct Blue Sapphire, Round, VVS

0.56ct Blue Sapphire, Round, VVS

5 mm (calibrated)

$ 377.24

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1.35ctw Red Pyrope Garnet, Square, VS

1.35ctw Red Pyrope Garnet, Square, VS

4.8 x 4.7 mm

$ 10.36

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0.60ct Yellow Zircon, Oval, VVS

0.60ct Yellow Zircon, Oval, VVS

5 x 4 mm (calibrated)

$ 8.96

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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 -> 9 star ratings

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

Posted By Emm in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

My experience has always been fantastic. Today I saved 6 gems to email a customer looking for a particular color blend to fit into an east west setting, so her options were limited, but we found one she wanted, deleted all the others in the cart and order the gem she selected. It was helpful to be able to put them in the cart so I could save them until she selected the one she wanted without having to research all of them again.

Posted By RJ in January, 2026
Source: Bizrate

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 -> 9 star ratings

Fast snd easy to find what I was looking for

Posted By Bawb in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great! Affordable

Posted By Spinellope in April, 2026
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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