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Cushion|Natural|GIA

0.31ct G SI1 Cushion Natural Diamond

GD • G/SI1 • GIA 6521420091

Certificate GIA 6521420091

Diamond specifications and retailer prices

From $503 AUD
SGD 476 SGD
As of October 27, 2026
Save $568 AUD (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,071 AUD 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 $503 to $1,071, a $568 spread on the same certified stone. MOH London lists it at $1,071. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $1,071 AUD|Low: $477 AUD|High: $1,093 AUD|Avg: $710 AUD|-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$477 AUD
Retailer 6$503 AUD
Retailer 2$597 AUD
Retailer 7$633 AUD
Retailer 5$635 AUD
Retailer 4$719 AUD
Retailer 8$746 AUD
Retailer 3$869 AUD
MOH London$1,071 AUD

45 data points across 9 retailers

9 retailers$503 AUD to $1,071 AUD

Retailer 1
-
$477 AUD
$334 USD
Price last confirmed 8 days ago
B+
Retailer 2
-
$503 AUD
SGD 476 SGD
View
B+
Retailer 3
-
$597 AUD
£329 GBP
View
B+
Retailer 4
-
$633 AUD
$444 USD
View
B+
Retailer 5
-
$635 AUD
£351 GBP
View
B
Retailer 6
-
$719 AUD
ZAR 8,135 ZAR
View
Retailer 7
-
$746 AUD
View
Price last confirmed 29 days ago
B
Retailer 8
-
$869 AUD
€580 EUR
View
Most Expensive
B
MOH London
0BA2B6DE0 · Nov 2
$1,071 AUD
£591 GBP
View
8 more retailers have this diamond
Prices start from $503 AUDSave up to $568 AUD

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
$503 AUD