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Cushion|Natural|GIA

1.31ct K IF Cushion Natural Diamond

EX • K/IF • GIA 6562018088

Certificate GIA 6562018088

Diamond specifications and retailer prices

From $4,973 AUD
As of November 5, 2026
Save $2,420 AUD (33%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $10,094 AUD at MOH London · As of October 11, 2026
View at MOH London

About this 1.31ct natural cushion diamond

This 1.31ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562018088. Listed at 14 retailers as of November 5, 2026, with a 49% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
K
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle30.03°
OriginNatural
Grading LabGIA
CertificateGIA 6562018088
Dimensions7.59 × 5.85 × 4.09 mm
L/W Ratio1.30
Culet sizeNone
Top View
7.59 mm5.85 mm1.31 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6562018088
Side View
Table 66.0%Crown 30.03°Girdle: THN-VTKPavilionCulet: NoneDepth 69.9%

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 5
Current: $10,094 AUD|Low: $4,797 AUD|High: $10,094 AUD|Avg: $6,159 AUD|+2.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 5$4,797 AUD
Retailer 9$4,876 AUD
Retailer 14$4,973 AUD
Retailer 12$5,005 AUD
Retailer 11$5,009 AUD
Retailer 4$5,181 AUD
Retailer 16$5,397 AUD
Retailer 6$5,401 AUD
Retailer 15$5,622 AUD
Retailer 13$6,086 AUD
Retailer 8$6,155 AUD
Retailer 10$6,223 AUD
Retailer 17$6,718 AUD
Retailer 7$6,749 AUD
Retailer 3$7,241 AUD
Retailer 2$7,393 AUD
MOH London$10,094 AUD

40 data points across 17 retailers

14 retailers$4,973 AUD to $7,393 AUD

Retailer 1
-
$4,797 AUD
Price last confirmed 23 days ago
Retailer 2
-
$4,876 AUD
View
Price last confirmed 33 days ago
A
Retailer 3
-
$4,973 AUD
View
A
Retailer 4
-
$5,005 AUD
View
A
Retailer 5
-
$5,009 AUD
View
Retailer 6
-
$5,401 AUD
View
Price last confirmed 24 days ago
A
Retailer 7
-
$5,622 AUD
View
B+
Retailer 8
-
$6,086 AUD
View
Retailer 9
-
$6,155 AUD
View
Price last confirmed 26 days ago
B+
Retailer 10
-
$6,223 AUD
View
Retailer 11
-
$6,749 AUD
View
Price last confirmed 25 days ago
Retailer 12
-
$7,241 AUD
View
Price last confirmed 26 days ago
B
Retailer 13
-
$7,393 AUD
View
Most Expensive
MOH London
1E0FFF25B · Oct 11
$10,094 AUD
£5,461 GBP
View
Price last confirmed 26 days ago
13 more retailers have this diamond
Prices start from $4,973 AUDSave up to $2,420 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
1.31ct Cushion
$4,973 AUD