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 |
0.73ctw Pink Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 73.94
0.59ct Orange Sapphire, Pear Shape, VVS
6 x 4 mm (calibrated)
$ 88.15
0.55ct Orange Sapphire, Pear Shape, VS
6 x 4 mm (calibrated)
$ 55.66
0.50ct Orange Sapphire, Pear Shape, VS
6 x 4 mm (calibrated)
$ 74.70
0.49ct Orange Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 51.81
1.04ctw Orange Sapphire, Oval, VS-SI
6 x 4 mm (calibrated)
$ 155.38
0.52ct Purple Sapphire, Emerald Cut, VVS
6 x 4 mm (calibrated)
$ 67.39
0.67ct Orange Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 100.10
0.46ct Yellow Sapphire, Pear Shape, VS
6 x 4 mm (calibrated)
$ 24.99
0.78ctw Pink Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 87.21
0.47ct Pink Sapphire, Oval, VVS
6 x 4 mm (calibrated)
$ 44.32
0.69ct Yellow Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 39.11
0.83ctw Pink Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 92.79
0.46ct Orange Sapphire, Pear Shape, VVS-VS
6 x 4 mm (calibrated)
$ 46.55
0.47ct Orange Sapphire, Pear Shape, VVS-VS
6 x 4 mm (calibrated)
$ 49.70
0.68ct Orange Sapphire, Oval, VVS-VS
6 x 4 mm (calibrated)
$ 68.82
0.54ct Yellow Sapphire, Oval, VVS
6 x 4 mm (calibrated)
$ 64.54
0.67ct Orange Sapphire, Oval, VVS
6 x 4 mm (calibrated)
$ 100.10
0.53ct Violet Sapphire, Oval, VVS-VS
6 x 4 mm (calibrated)
$ 81.29
0.40ct Purple Sapphire, Oval, VVS-VS
6 x 4 mm (calibrated)
$ 37.73
0.46ct Orange Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 21.47
0.70ct Violet Sapphire, Oval, VVS
6 x 4 mm (calibrated)
$ 83.66
0.53ct Orange Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 65.61
0.84ctw Pink Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 85.08
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 
Always get a nice gemstone. Just like the picture. Never disappointed
Overall Rating -> 10
They have a wonderful selection of gems of all sorts, shapes, cuts, and quality. I am very particular about the quality of stones I buy, and found many with VVS clarity and excellent cut and polish. I am thrilled with each of the stones I purchased, and would definitely recommend GemSelect to everyone.
Overall Rating -> 10
Very good.
Overall Rating -> 9 
Very good and simple exchange
Overall Rating -> 10
It was great! Great photos
Overall Rating -> 10
Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10
