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Cushion|Natural|GIA

0.31ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2556254498

Certificate GIA 2556254498

Diamond specifications and retailer prices

From $585 AUD
$411 USD
As of November 1, 2026
Save $585 AUD (50%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,170 AUD at MOH London · As of November 1, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556254498. Listed at 8 retailers as of November 1, 2026, with prices from $585 to $1,170, a $585 spread on the same certified stone. MOH London lists it at $1,170. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.31
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556254498
Dimensions3.84 × 3.78 × 2.58 mm
L/W Ratio1.02
Top View
3.84 mm3.78 mm0.31 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2556254498
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 68.2%

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: Nov 1
Current: $1,170 AUD|Low: $585 AUD|High: $1,177 AUD|Avg: $809 AUD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6$585 AUD
Retailer 2$657 AUD
Retailer 8$692 AUD
Retailer 5$694 AUD
Retailer 4$786 AUD
Retailer 7$806 AUD
Retailer 3$934 AUD
MOH London$1,170 AUD

44 data points across 8 retailers

8 retailers$585 AUD to $1,170 AUD

B+
Cheapest Retailer
-
$585 AUD
$411 USD
B
Retailer 2
-
$657 AUD
£363 GBP
View
Retailer 3
-
$692 AUD
$486 USD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$694 AUD
£384 GBP
View
B
Retailer 5
-
$786 AUD
ZAR 8,914 ZAR
View
Retailer 6
-
$806 AUD
View
Price last confirmed 28 days ago
B
Retailer 7
-
$934 AUD
€625 EUR
View
Most Expensive
B
MOH London
E4051D7B2 · Nov 1
$1,170 AUD
£647 GBP
View
7 more retailers have this diamond
Prices start from $585 AUDSave up to $585 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
$585 AUD