Calibrated Sapphire 6x4 mm
Browse loose calibrated 6x4 mm sapphires for jewelry settings, matched designs and custom pieces. Compare individual stones by color, shape, clarity and gem details.
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Bi-color
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Black
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Blue 6x4 Sapphire
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Brown
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Golden
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Gray 6x4 Sapphire
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Green 6x4 Sapphire
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Multicolor
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Orange 6x4 Sapphire
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Pink 6x4 Sapphire
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Purple 6x4 Sapphire
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Red 6x4 Sapphire
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Turquoise
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Violet 6x4 Sapphire
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White
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Yellow 6x4 Sapphire
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
0.66ct Pink Sapphire, Emerald Cut, VVS
6 x 4 mm (calibrated)
$ 85.52
0.56ct Orange Sapphire, Pear Shape, VS
6 x 4 mm (calibrated)
$ 59.21
1.08ctw Orange Sapphire, Oval, VVS
6 x 4 mm (calibrated)
$ 161.35
0.46ct Orange Sapphire, Pear Shape, VVS-VS
6 x 4 mm (calibrated)
$ 68.72
0.32ct Purple Sapphire, Pear Shape, VVS
6 x 4 mm (calibrated)
$ 30.18
0.70ct Orange Sapphire, Oval, VVS-VS
6 x 4 mm (calibrated)
$ 74.01
0.56ct Orange Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 56.67
0.52ct Orange Sapphire, Oval, VVS-VS
6 x 4 mm (calibrated)
$ 52.62
0.52ct Orange Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 52.62
0.66ct Orange Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 34.99
0.60ct Orange Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 31.63
0.55ct Orange Sapphire, Oval, VVS-VS
6 x 4 mm (calibrated)
$ 58.16
0.48ct Orange Sapphire, Pear Shape, VS
6 x 4 mm (calibrated)
$ 48.57
0.61ct Pink Sapphire, Emerald Cut, VVS-VS
6 x 4 mm (calibrated)
$ 79.05
0.40ct Violet Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 40.39
0.57ct Orange Sapphire, Pear Shape, VS
6 x 4 mm (calibrated)
$ 30.97
0.62ct Yellow Sapphire, Oval, VVS-VS
6 x 4 mm (calibrated)
$ 65.55
0.60ct Violet Sapphire, Oval, VVS-VS
6 x 4 mm (calibrated)
$ 71.71
0.49ct Pink Sapphire, Oval, VVS-VS
6 x 4 mm (calibrated)
$ 161.05
0.68ctw Pink Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 63.35
0.41ct Yellow Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 44.92
0.44ct Orange Sapphire, Pear Shape, VS
6 x 4 mm (calibrated)
$ 46.52
0.55ct Yellow Sapphire, Oval, VVS
6 x 4 mm (calibrated)
$ 29.19
0.51ct Yellow Sapphire, Oval, VVS-VS
6 x 4 mm (calibrated)
$ 27.07
Why Buy 6x4 Sapphire from GemSelect?
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Shop 6x4 mm Calibrated Sapphires
Calibrated 6x4 mm sapphire is a practical choice when you need a loose gemstone that is close to a standard jewelry size. These stones are often selected for rings, earrings, pendants and replacement gems where millimeter dimensions matter.
Why Choose a Calibrated Size?
A calibrated gemstone is cut to fit common setting dimensions, helping simplify jewelry design and repair projects. While natural gemstones can have small measurement variations, starting with a 6x4 mm sapphire category makes it easier to find stones suited to existing mounts or planned designs.
Compare Color, Shape and Appearance
Sapphire is valued for its durable beauty and wide range of attractive colors. When shopping this category, compare each stone’s exact measurements, shape, face-up color, clarity and cut style to choose the best fit for your jewelry project.
Buying Loose Sapphire for Jewelry
Before ordering, confirm the required dimensions with your jeweler, especially if you are replacing a stone or using a pre-made setting. Review the individual product details and photos carefully, as each natural sapphire has its own character, proportions and visual appeal.
Calibrated Sapphire 6x4 mm FAQs
What does 6x4 mm calibrated sapphire mean?
It refers to a loose sapphire cut close to a 6 mm by 4 mm size, a common calibrated dimension used for many jewelry settings.
Will every 6x4 mm sapphire fit my setting?
Not always. Settings can vary, and natural gems may have slight measurement differences. Check the exact dimensions and ask your jeweler to confirm fit before setting the stone.
Is a 6x4 mm sapphire good for earrings?
Yes, 6x4 mm sapphires are commonly chosen for earrings, small rings, accent designs and pendants. For pairs, compare color, shape and measurements closely.
What should I check before buying?
Review the stone’s exact size, shape, color, clarity, cut and any listed gem details. For custom work, your jeweler can help confirm whether the stone suits the intended design.
GemSelect Certified Store Reviews
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10 
Fairly good selection of calibrated gems but would like to see more in various sizes, esp rounds,
Overall Rating -> 10
The website has a good selection, the interface is very intuitive.
Overall Rating -> 10
selection was broad and the check out was quick. Great site
Overall Rating -> 10
My experience was done with ease
Overall Rating -> 10
I could see the actual gem I was buying
Overall Rating -> 9 
Easy to use. Many options to find the right gemstone
