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Cushion|Natural|GIA

0.31ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 5563718148

Certificate GIA 5563718148

Diamond specifications and retailer prices

From $655 AUD
$460 USD
As of November 1, 2026
Save $826 AUD (56%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,481 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 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 5563718148. Listed at 6 retailers as of November 1, 2026, with prices from $655 to $1,481, a $826 spread on the same certified stone. MOH London lists it at $1,481. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5563718148
Dimensions3.82 × 3.77 × 2.60 mm
L/W Ratio1.01
Key to symbols
Cloud, Crystal, Feather
Top View
3.82 mm3.77 mm0.31 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5563718148
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.0%

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: $1,481 AUD|Low: $655 AUD|High: $1,488 AUD|Avg: $977 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 3$655 AUD
Retailer 2$797 AUD
Retailer 6$847 AUD
Retailer 5$878 AUD
Retailer 4$972 AUD
MOH London$1,481 AUD

9 data points across 6 retailers

6 retailers$655 AUD to $1,481 AUD

A
Cheapest Retailer
-
$655 AUD
$460 USD
B+
Retailer 2
-
$797 AUD
£441 GBP
View
B+
Retailer 3
-
$847 AUD
$595 USD
View
B+
Retailer 4
-
$878 AUD
£486 GBP
View
B+
Retailer 5
-
$972 AUD
€650 EUR
View
Most Expensive
B
MOH London
40E259C99 · Nov 1
$1,481 AUD
£819 GBP
View
5 more retailers have this diamond
Prices start from $655 AUDSave up to $826 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
$655 AUD