Cushion|Natural|GIA

0.31ct G SI1 Cushion Natural Diamond

GD • G/SI1 • GIA 6521420091

Certificate GIA 6521420091

Diamond specifications and retailer prices

From $352 USD
SGD 476 SGD
As of October 27, 2026
Save $398 USD (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $751 USD at MOH London · As of November 2, 2026
View at MOH London

About this 0.31ct natural cushion diamond

This 0.31ct natural cushion sits in the sub-half-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6521420091. Listed at 9 retailers as of October 27, 2026, with prices from $352 to $751, a $398 spread on the same certified stone. MOH London lists it at $751. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.31
Carat
G
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6521420091
Dimensions4.50 × 3.62 × 2.48 mm
L/W Ratio1.24
Top View
4.50 mm3.62 mm0.31 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6521420091
Side View
Table 51.0%CrownGirdle: ThickPavilionCulet: SmallDepth 68.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $751 USD|Low: $334 USD|High: $766 USD|Avg: $497 USD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9$334 USD
Retailer 6$352 USD
Retailer 2$418 USD
Retailer 7$444 USD
Retailer 5$445 USD
Retailer 4$504 USD
Retailer 8$523 USD
Retailer 3$609 USD
MOH London$751 USD

45 data points across 9 retailers

9 retailers$352 USD to $751 USD

Retailer 1
-
$334 USD
Price last confirmed 8 days ago
B+
Retailer 2
-
$352 USD
SGD 476 SGD
View
B+
Retailer 3
-
$418 USD
£329 GBP
View
B+
Retailer 4
-
$444 USD
View
B+
Retailer 5
-
$445 USD
£351 GBP
View
B
Retailer 6
-
$504 USD
ZAR 8,135 ZAR
View
Retailer 7
-
$523 USD
A$804 AUD
View
Price last confirmed 29 days ago
B
Retailer 8
-
$609 USD
€580 EUR
View
Most Expensive
B
MOH London
0BA2B6DE0 · Nov 2
$751 USD
£591 GBP
View
8 more retailers have this diamond
Prices start from $352 USDSave up to $398 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
0.31ct Cushion
$352 USD