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Cushion|Natural|GIA

1.20ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 1553950564

Certificate GIA 1553950564

Diamond specifications and retailer prices

From $2,011 AUD
As of November 6, 2026
Save $2,680 AUD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,691 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553950564. Listed at 14 retailers as of November 4, 2026, with prices from $2,011 to $4,691, a $2,680 spread on the same certified stone. MOH London lists it at $4,691. 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

1.20
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1553950564
Dimensions7.09 × 5.46 × 3.75 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Indented Natural, Needle, Natural
Top View
7.09 mm5.46 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1553950564
Side View
Table 68.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.7%

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 6
Current: $4,691 AUD|Low: $2,011 AUD|High: $4,754 AUD|Avg: $3,015 AUD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$2,011 AUD
Retailer 2$2,109 AUD
Retailer 6$2,484 AUD
Retailer 9$2,684 AUD
Retailer 4$2,796 AUD
Retailer 5$2,914 AUD
Retailer 7$3,276 AUD
Retailer 3$3,646 AUD
MOH London$4,691 AUD

33 data points across 9 retailers

14 retailers$2,011 AUD to $4,691 AUD

A
Cheapest Retailer
-
$2,011 AUD
A
Retailer 2
-
$2,109 AUD
View
B+
Retailer 3
-
$2,484 AUD
View
B+
Retailer 4
-
$2,531 AUD
View
B+
Retailer 5
-
$2,532 AUD
View
Retailer 6
-
$2,684 AUD
View
Price last confirmed 22 days ago
B+
Retailer 7
-
$2,770 AUD
View
B+
Retailer 8
-
$2,794 AUD
View
B+
Retailer 9
-
$2,796 AUD
View
B+
Retailer 10
-
$2,883 AUD
View
B+
Retailer 11
-
$2,914 AUD
View
B+
Retailer 12
-
$3,276 AUD
View
B+
Retailer 13
-
$3,646 AUD
View
Most Expensive
B
MOH London
A3A101AE3 · Nov 4
$4,691 AUD
£2,538 GBP
View
13 more retailers have this diamond
Prices start from $2,011 AUDSave up to $2,680 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
1.20ct Cushion
$2,011 AUD