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 |
0.53ct Orange Sapphire, Oval, VVS
6 x 4 mm (calibrated)
$ 56.03
0.42ct Orange Sapphire, Pear Shape, VVS
6 x 4 mm (calibrated)
$ 23.80
1.06ctw Orange Sapphire, Oval, VVS-VS
6 x 4 mm (calibrated)
$ 158.36
0.62ct Orange Sapphire, Oval, VVS-VS
6 x 4 mm (calibrated)
$ 61.75
0.48ct Orange Sapphire, Pear Shape, VVS
6 x 4 mm (calibrated)
$ 50.75
0.60ct Yellow Sapphire, Oval, VVS
6 x 4 mm (calibrated)
$ 34.01
0.68ct Violet Sapphire, Emerald Cut, VS
6 x 4 mm (calibrated)
$ 88.11
0.56ct Orange Sapphire, Pear Shape, VVS
6 x 4 mm (calibrated)
$ 31.74
0.54ct Orange Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 57.10
0.75ctw Pink Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 68.62
0.72ctw Pink Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 72.92
0.43ct Orange Sapphire, Pear Shape, VVS-VS
6 x 4 mm (calibrated)
$ 45.47
0.46ct Violet Sapphire, Oval, VVS
6 x 4 mm (calibrated)
$ 35.07
0.52ct Orange Sapphire, Pear Shape, VVS-VS
6 x 4 mm (calibrated)
$ 52.62
1.08ctw Orange Sapphire, Oval, VVS
6 x 4 mm (calibrated)
$ 161.35
0.56ct Orange Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 83.66
1.30ctw Orange Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 194.22
0.81ct Yellow Sapphire, Oval, VVS
6 x 4 mm (calibrated)
$ 80.68
0.66ct Yellow Sapphire, Oval, VVS-VS
6 x 4 mm (calibrated)
$ 37.41
2.41ctw Purple Sapphire, Emerald Cut, VVS-VS
6 x 4 mm (calibrated)
$ 318.33
1.20ctw Orange Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 179.28
0.53ct Violet Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 74.06
0.36ct Yellow Sapphire, Oval, VVS-VS
6 x 4 mm (calibrated)
$ 32.93
0.90ctw Yellow Sapphire, Pear Shape, VS
6 x 4 mm (calibrated)
$ 71.71
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 -> 7 
Could not get it to work 25 times.
Overall Rating -> 10 
Good, hope gem quality is good and genuine
Overall Rating -> 10
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!
Overall Rating -> 10
Very good. I have made several purchases as a collector over the years, and have never been dissapointed in the selection, process, or delivery.
Overall Rating -> 10
No problems. I had a minor address issue in the past and someone got back to me very quickly and we resolved the issue satisfactorily. I appreciated the quick, concerned response. So important when buyer/seller are so far apart in distance. Thank you Gem Select. Keep up the good work!
Overall Rating -> 10
Although the stones are smaller than I thought, I really don't think in millimeters, they are perfect. I plan to put one into a ring and the other into a necklace. Ordering was easy, contact kept me aware of how shipping was going, and delivery was sooner than expected. The quality of stones I have ordered in the past and this recent order is outstanding and stones I will be proud to wear.
