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Cushion|Natural|GIA

1.20ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 1555689564

Certificate GIA 1555689564

Diamond specifications and retailer prices

From $4,223 NZD
As of November 6, 2026
Save $4,041 NZD (49%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,263 NZD at MOH London · As of November 2, 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 1555689564. Listed at 8 retailers as of November 2, 2026, with prices from $4,223 to $8,263, a $4,041 spread on the same certified stone. MOH London lists it at $8,263. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555689564
Dimensions7.26 × 5.38 × 3.70 mm
L/W Ratio1.35
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Cavity, Needle
Top View
7.26 mm5.38 mm1.20 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555689564
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $8,263 NZD|Low: $3,195 NZD|High: $8,362 NZD|Avg: $4,503 NZD|+44.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$3,195 NZD
Retailer 11$3,272 NZD
Retailer 10$3,575 NZD
Retailer 8$4,223 NZD
Retailer 6$4,459 NZD
Retailer 2$4,531 NZD
Retailer 7$4,663 NZD
Retailer 9$4,970 NZD
Retailer 4$5,287 NZD
Retailer 5$5,756 NZD
MOH London$8,263 NZD

34 data points across 11 retailers

8 retailers$4,223 NZD to $8,263 NZD

B+
Cheapest Retailer
-
$4,223 NZD
B+
Retailer 2
-
$4,459 NZD
View
B+
Retailer 3
-
$4,531 NZD
View
B
Retailer 4
-
$4,663 NZD
View
B
Retailer 5
-
$4,970 NZD
View
B
Retailer 6
-
$5,287 NZD
View
B
Retailer 7
-
$5,756 NZD
View
Most Expensive
B
MOH London
57F3EF09A · Nov 2
$8,263 NZD
£3,607 GBP
View
7 more retailers have this diamond
Prices start from $4,223 NZDSave up to $4,041 NZD

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.

B+
1.20ct Cushion
$4,223 NZD