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 |
0.40ct Pink Sapphire, Oval, VVS
6 x 4 mm (calibrated)
$ 37.73
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
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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
My experience was done with ease
Overall Rating -> 10
Easy and good price
Overall Rating -> 10
Found a rock that met my need. Bought it!
Overall Rating -> 10
overall great
Overall Rating -> 10
Very good.
