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Home Gemstones Sapphire
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 Natural Blue Sapphire, Round Cut, 4.37 mm

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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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the selection is good as are the prices

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Posted By Ferns in October, 2025
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The stones are very nice.

Posted By Mvk in August, 2025
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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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My current project is something BLUE . Opal earrings with matching tennis bracelet for her wedding. The opals and sixty two sapphires VVS & VS are AMAZINGLY BEAUTIFUL. The private jewelers were impressed by the clarity and inclusion free of the sapphires . I want to say thank you for the High quality sapphires that I purchased for my daughtera's wedding.

Posted By My real name Dean or Wandering about in May, 2026
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