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0.31 ctw Black Diamond Gemstones, Diamond Gems in Princess-Cut Shape for Sale.
Photos are of Actual Products for Sale
0.31 ctw Black Diamond Stones, Natural Diamond in Princess-Cut Shape for Sale Diamond Gemstones in 2.7 x 2.5 mm Size for Sale, Diamond Stones in Black Color

0.31ct Natural Black Diamond, Square, 2.7x2.5 mm

9.6 out of 10
See Bizrate Ratings for GemSelect
Product ID: 677975
Type: Diamond
Weight: 0.31 ct (total) 2 gems
avg. 0.16 ct
Size: mm calibrated
Size: 2.6 x 2.6 mm
Exact Size: 2.58 x 2.58 x 2.20 mm
Length x Width x Depth
Shape: Princess-Cut
Color: Black
Clarity: Opaque
Treatment: Untreated
Origin: India
Content: 2 pcs
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  • Natural certified gemstones

    Gemstone Laboratories
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  • 30-day risk free return policy

$
186.00
Item in Stock
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Product Description

These are 0.31 carat natural black Diamond gems, 2 pcs in square shape with an exact size of 2.68 x 2.48 x 2.20 mm. These loose Diamond gemstones were mined in India and their clarity is Opaque. No treatment has been applied on these natural Diamond stones

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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 -> 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
Source: Bizrate

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 -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

this site is awesome. I was able to look at the products think about purchasing and come back and find the same products. With the amount of inventory gem select has. Its awesome to be able to filter the way that they allow you too.

Posted By Tommyp in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great! Affordable

Posted By Spinellope in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

GemSelect is always my first choice for purchasing gemstones. The fact that the gems are always exactly as described and pictured on the website has earned my trust many times over. Even when I don't buy, I still love browsing all the beautiful stones. My new favorites are the bright green Tsavorites!

Posted By Lkcisneros in March, 2026
Source: Bizrate
Download Identification Report PDF
BGL Brief Report $ 18.00
Turnaround Time: 3-4 working days Details
ICA Brief Report $ 90.00
Turnaround Time: 8-12 working days Details
Enlarged Gemstone Image