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0.51 ct Blue Sapphire Gemstone, Sapphire Gem in Round Cabochon Shape for Sale.
Photos are of Actual Product for Sale
0.51 ct Blue Sapphire Stone, Natural Sapphire in Round Cabochon Shape for Sale Sapphire Gemstone in 4.5 mm (calibrated) Size for Sale, Sapphire Stone in Greyish Blue Green Color

0.51ct Greyish Blue Green Sapphire, Round Cut, 4.37 mm

9.6 out of 10
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Product ID: 658592
Type: Sapphire
Weight: 0.51 ct 1 gem
Size: 4.5 mm calibrated
Size: 4.4 mm
Exact Size: 4.37 x 2.41 mm
Diameter x Depth
Shape: Round Cabochon
Color: Greyish Blue Green
Clarity: Transparent
Treatment: Heated
Origin: Tanzania
Content: 1 pc
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Product Description

This is a 0.51 carat natural greyish blue green Sapphire gem, 1 pc in round shape with an exact size of 4.37 mm x 2.41 mm . This loose Sapphire gemstone was mined in Tanzania and its clarity is Transparent. This natural Sapphire has been heated to enhance its vivid color.

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GemSelect Certified Store Reviews

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Overall Rating -> 10 star ratings

The stones are very nice.

Posted By Mvk in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

GemSelect offers excellent choices, prices & service- highly recommended! Unfortunately, prior to ordering a replacement gemstone, my jeweler neglected to mention it needed to be one that was a'cushion cuta' to fit the existing mount. Have yet to return/exchangea'

Posted By CJ in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Absolutely love the website, selection and products. Can you guys add a gemstones with inclusions tab. I like those it'd be nice to have them all in one place but i do understand it would be alot of work to go through and categorize them. Thank you anyways

Posted By The homie edgar in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I could see the actual gem I was buying

Posted By Bugs in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Wonderful purchase, can't wait to see the stone.

Posted By Tim in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Love, and have always loved, your website.

Posted By Aberabic in July, 2025
Source: Bizrate
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