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0.51 ct Blue Sapphire Gemstone, Sapphire Gem in Diamond-Cut Shape for Sale.
Photos are of Actual Product for Sale
0.51 ct Blue Sapphire Stone, Natural Sapphire in Diamond-Cut Shape for Sale Sapphire Gemstone in 5 mm (calibrated) Size for Sale, Sapphire Stone in Deep Blue Color

0.51ct Natural Blue Sapphire, Round Cut, 4.83 mm

9.6 out of 10
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Product ID: 467456
Type: Sapphire
Weight: 0.51 ct 1 gem
Size: 5 mm calibrated
Size: 4.8 mm
Exact Size: 4.83 x 3.24 mm
Diameter x Depth
Shape: Diamond-Cut
Color: Deep Blue
Clarity: VVS
Treatment: Heated
Origin: Madagascar
Content: 1 pc
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$
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Product Description

This is a 0.51 carat natural deep blue Sapphire gem, 1 pc in round shape with an exact size of 4.83 mm x 3.24 mm . This loose Sapphire gemstone was mined in Madagascar and its clarity is VVS (Eye Clean). This natural Sapphire has been heated to enhance its vivid color.

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Overall Rating -> 10 star ratings

I was able to find what I wanted very easily!

Posted By Lenny in January, 2026
Source: Bizrate

Overall Rating -> 8 star ratings

I've purchased things from GemSelect before. What you see is what you get, which is not always the case with gem sites online. You can find some good value with gem select, and I will buy from them again.

Posted By Meyeusername in March, 2026
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Overall Rating -> 9 star ratings

the gems were smaller than I thought but I was at fault for not reading the complete discrimination

Posted By Tim in May, 2025
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Overall Rating -> 9 star ratings

It was great!

Posted By Annie in September, 2025
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Overall Rating -> 8 star ratings

First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.

Posted By Salvo in July, 2025
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Overall Rating -> 10 star ratings

I love the products. I've bought them as gifts and people love my gifts

Posted By Love it! in February, 2026
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