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Home Gemstones Star Sapphire
20.93 ct Black Star Sapphire Gemstone, Star Sapphire Gem in Oval Cabochon Shape for Sale.
Photos are of Actual Product for Sale
20.93 ct Black Star Sapphire Stone, Natural Star Sapphire in Oval Cabochon Shape for Sale Star Sapphire Gemstone in 16 x 12.7 mm Size for Sale, Star Sapphire Stone in Black Color

20.93ct Natural Black Star Sapphire, Oval Cut, 16x12.7 mm

9.7 out of 10
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Product ID: 684801
Type: Star Sapphire
Weight: 20.93 ct 1 gem
Size: mm calibrated
Size: 16 x 12.7 x 9.4 mm
Exact Size: 15.96 x 12.69 x 9.38 mm
Length x Width x Depth
Shape: Oval Cabochon
Color: Black
Clarity: Opaque
Treatment: Heated
Origin: Thailand
Content: 1 pc
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$
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Item is Sold
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Product Description

This is a 20.93 carat natural black Star Sapphire gem, 1 pc in oval shape with an exact size of 15.96 x 12.69 x 9.38 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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GemSelect Certified Store Reviews

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Overall Rating -> 9 star ratings

The website was easy to use and informative of the selection of stones it has. I quickly found the right stone for me.

Posted By Guero in March, 2026
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 -> 9 star ratings

Will know more once order received

Posted By Jim in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

All items were delivered on time with all items meeting or exceeding my expectations. Cut, clarity and color were very close to the photos and description.

Posted By Bob D in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoy viewing the selections. Excellent product

Posted By ToRa.62 in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

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
Source: Bizrate
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