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Cushion|Natural|GIA

0.31ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6552118613

Certificate GIA 6552118613

Diamond specifications and retailer prices

From $606 AUD
$425 USD
As of October 29, 2026
Save $695 AUD (53%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,301 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 F 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 6552118613. Listed at 12 retailers as of October 29, 2026, with prices from $606 to $1,301, a $695 spread on the same certified stone. MOH London lists it at $1,301. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552118613
Dimensions5.24 × 3.42 × 2.30 mm
L/W Ratio1.53
Top View
5.24 mm3.42 mm0.31 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6552118613
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.3%

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: Oct 29
Current: $1,301 AUD|Low: $606 AUD|High: $1,316 AUD|Avg: $944 AUD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 3, 2026
Retailer 7$606 AUD
Retailer 2$736 AUD
Retailer 6$772 AUD
Retailer 5$873 AUD
Retailer 8$902 AUD
Retailer 4$1,023 AUD
Retailer 3$1,139 AUD
MOH London$1,301 AUD

39 data points across 8 retailers

12 retailers$606 AUD to $1,301 AUD

Retailer 1
-
$591 AUD
SGD 560 SGD
Price last confirmed 7 days ago
A
Retailer 2
-
$606 AUD
$425 USD
View
B+
Retailer 3
-
$649 AUD
$455 USD
View
B+
Retailer 4
-
$736 AUD
£406 GBP
View
B+
Retailer 5
-
$750 AUD
$525 USD
View
B+
Retailer 6
-
$762 AUD
$534 USD
View
B+
Retailer 7
-
$772 AUD
£426 GBP
View
B+
Retailer 8
-
$873 AUD
ZAR 9,884 ZAR
View
Retailer 9
-
$902 AUD
View
Price last confirmed 30 days ago
B
Retailer 10
-
$1,023 AUD
€683 EUR
View
B
Retailer 11
-
$1,139 AUD
£629 GBP
View
Most Expensive
B
MOH London
28A45359A · Nov 2
$1,301 AUD
£718 GBP
View
11 more retailers have this diamond
Prices start from $606 AUDSave up to $695 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
$606 AUD