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12.86 ct Yellow Quartz Gemstone, Quartz Gem in Round Concave Cut Shape for Sale.
Photos are of Actual Product for Sale
12.86 ct Yellow Quartz Stone, Natural Quartz in Round Concave Cut Shape for Sale Quartz Gemstone in 16 mm (calibrated) Size for Sale, Quartz Stone in Medium Yellow Color

12.86ct Natural Yellow Quartz, Round Cut, 16.00 mm

9.7 out of 10
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Product ID: 603123
Type: Quartz
Weight: 12.86 ct 1 gem
Size: 16 mm calibrated
Size: 16 mm
Exact Size: 16.00 x 11.04 mm
Diameter x Depth
Shape: Round Concave Cut
Color: Medium Yellow
Clarity: Transparent
Treatment: Irradiated
Origin: Brazil
Content: 1 pc
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Product Description

This is a 12.86 carat natural medium yellow Quartz gem, 1 pc in round shape with an exact size of 16.00 mm x 11.04 mm . This loose Quartz gemstone was mined in Brazil and its clarity is Transparent.

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GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.

Posted By JD in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found the filter options excellent. Yours was the third site I visited (asked chat got for reputable online sellers of loose gems) and the first I purchased from as I was able to easily find what I was looking for.

Posted By Kelly in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for high-quality amethyst on this site, and I was able to compare size, color, and weight in detail before making a purchase.

Posted By Atsuhisa in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

All these questions, and I don't have to give any blood. What a Deal... I absolutely enjoy the Gem Select emails every month. This one today was special. I always say, I'll know it when I see it. This stone today was the One. Odd and Intriguing. Thank You So Much for all that you do.

Posted By G.W. in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have been very happy with my prior purchases and enjoy the website experience.

Posted By Trouble in November, 2025
Source: Bizrate
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