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Home Gemstones Star Sapphire
6.71 ct Black Star Sapphire Gemstone, Star Sapphire Gem in Oval Cabochon Shape for Sale.
Photos are of Actual Product for Sale
6.71 ct Black Star Sapphire Stone, Natural Star Sapphire in Oval Cabochon Shape for Sale Star Sapphire Gemstone in 11 x 9 mm (calibrated) Size for Sale, Star Sapphire Stone in Black Color

6.71ct Natural Black Star Sapphire, Oval Cut, 11.2x9.2 mm

9.6 out of 10
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Product ID: 682728
Type: Star Sapphire
Weight: 6.71 ct 1 gem
Size: 11 x 9 mm calibrated
Size: 11.2 x 9.2 x 5.6 mm
Exact Size: 11.24 x 9.17 x 5.62 mm
Length x Width x Depth
Shape: Oval Cabochon
Color: Black
Clarity: Opaque
Treatment: Heated
Origin: Thailand / Kanchanaburi
Content: 1 pc
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Product Description

This is a 6.71 carat natural black Star Sapphire gem, 1 pc in oval shape with an exact size of 11.24 x 9.17 x 5.62 mm. This loose Star Sapphire gemstone was mined in Thailand and its clarity is Opaque. This natural Star Sapphire has been heated to enhance its vivid color.

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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.

Posted By Ktreva52 in June, 2026
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Fairly good selection of calibrated gems but would like to see more in various sizes, esp rounds,

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Always get a nice gemstone. Just like the picture. Never disappointed

Posted By Ron T in June, 2026
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The citrine gems are beautiful. I appreciated that each stone was individually shown on the website so I could see exactly what I was getting. No mystery person selecting random stones for me. The documentation included with each gem was high quality as well. Great price and arrived as expected.

Posted By Jen in December, 2025
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Ia've been searching for a source to get my gemstones for awhile now and was very happy to come across this website. Amazing variety for any income.

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