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Cushion|Natural|GIA

0.31ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 5556389494

Certificate GIA 5556389494

Diamond specifications and retailer prices

From $634 AUD
$445 USD
As of November 1, 2026
Save $779 AUD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,412 AUD at MOH London · As of October 29, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5556389494. Listed at 11 retailers as of October 29, 2026, with prices from $634 to $1,412, a $779 spread on the same certified stone. MOH London lists it at $1,412. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556389494
Dimensions3.93 × 3.92 × 2.68 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Etch Channel, Crystal, Twinning Wisp, Feather
Top View
3.93 mm3.92 mm0.31 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556389494
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,412 AUD|Low: $634 AUD|High: $1,419 AUD|Avg: $909 AUD|+16.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 2$634 AUD
Retailer 3$669 AUD
Retailer 9$713 AUD
Retailer 5$747 AUD
Retailer 11$808 AUD
Retailer 8$852 AUD
Retailer 10$874 AUD
Retailer 6$946 AUD
Retailer 7$964 AUD
Retailer 4$1,230 AUD
MOH London$1,412 AUD

30 data points across 11 retailers

11 retailers$634 AUD to $1,412 AUD

A
Cheapest Retailer
-
$634 AUD
$445 USD
A
Retailer 2
-
$669 AUD
$470 USD
View
A
Retailer 3
-
$713 AUD
$501 USD
View
B+
Retailer 4
-
$747 AUD
£413 GBP
View
B+
Retailer 5
-
$808 AUD
$568 USD
View
B+
Retailer 6
-
$852 AUD
£471 GBP
View
B+
Retailer 7
-
$874 AUD
$614 USD
View
B+
Retailer 8
-
$946 AUD
€633 EUR
View
B+
Retailer 9
-
$964 AUD
ZAR 10,940 ZAR
View
B
Retailer 10
-
$1,230 AUD
£680 GBP
View
Most Expensive
B
MOH London
0AB137A9B · Oct 29
$1,412 AUD
£781 GBP
View
10 more retailers have this diamond
Prices start from $634 AUDSave up to $779 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.

A
0.31ct Cushion
$634 AUD