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Cushion|Natural|GIA

1.20ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 5433396863

Certificate GIA 5433396863

Diamond specifications and retailer prices

From $1,802 AUD
As of November 5, 2026
Save $1,747 AUD (49%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,549 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 5433396863. Listed at 11 retailers as of November 4, 2026, with prices from $1,802 to $3,549, a $1,747 spread on the same certified stone. MOH London lists it at $3,549. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5433396863
Dimensions5.74 × 5.68 × 4.18 mm
L/W Ratio1.01
Top View
5.74 mm5.68 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5433396863
Side View
Table 64.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 73.7%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $3,549 AUD|Low: $1,802 AUD|High: $3,782 AUD|Avg: $2,465 AUD|-5.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10$1,802 AUD
Retailer 6$1,812 AUD
Retailer 2$1,885 AUD
Retailer 8$2,103 AUD
Retailer 7$2,144 AUD
Retailer 9$2,158 AUD
Retailer 4$2,185 AUD
Retailer 5$2,371 AUD
Retailer 3$2,695 AUD
MOH London$3,549 AUD

34 data points across 10 retailers

11 retailers$1,802 AUD to $3,549 AUD

A
Cheapest Retailer
-
$1,802 AUD
A
Retailer 2
-
$1,812 AUD
View
A
Retailer 3
-
$1,885 AUD
View
B+
Retailer 4
-
$2,103 AUD
View
Retailer 5
-
$2,132 AUD
View
Price last confirmed 30 days ago
A
Retailer 6
-
$2,144 AUD
View
B+
Retailer 7
-
$2,158 AUD
View
A
Retailer 8
-
$2,185 AUD
View
B+
Retailer 9
-
$2,371 AUD
View
B+
Retailer 10
-
$2,695 AUD
View
Most Expensive
B
MOH London
D43CBFDD5 · Nov 4
$3,549 AUD
£1,920 GBP
View
10 more retailers have this diamond
Prices start from $1,802 AUDSave up to $1,747 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
$1,802 AUD