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Cushion|Natural|GIA

1.20ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 1559310061

Certificate GIA 1559310061

Diamond specifications and retailer prices

From $3,117 NZD
As of November 6, 2026
Save $3,884 NZD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $7,001 NZD at MOH London · As of November 7, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559310061. Listed at 21 retailers as of November 6, 2026, with prices from $3,117 to $7,001, a $3,884 spread on the same certified stone. MOH London lists it at $7,001. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559310061
Dimensions6.15 × 6.03 × 4.00 mm
L/W Ratio1.02
Girdle conditionFaceted
Top View
6.15 mm6.03 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559310061
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 66.4%

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: $7,001 NZD|Low: $3,070 NZD|High: $7,310 NZD|Avg: $4,238 NZD|-4.2%
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
Retailer 18
Retailer 19
November 7, 2026
Retailer 7$3,117 NZD
Retailer 10$3,135 NZD
Retailer 9$3,359 NZD
Retailer 17$3,411 NZD
Retailer 12$3,635 NZD
Retailer 16$3,660 NZD
Retailer 3$3,698 NZD
Retailer 11$3,712 NZD
Retailer 4$3,725 NZD
Retailer 5$3,842 NZD
Retailer 13$3,896 NZD
Retailer 8$3,940 NZD
Retailer 6$4,127 NZD
Retailer 19$4,138 NZD
Retailer 2$4,365 NZD
Retailer 15$4,903 NZD
Retailer 14$4,990 NZD
Retailer 18$6,323 NZD
MOH London$7,001 NZD

19 data points across 19 retailers

21 retailers$3,117 NZD to $7,001 NZD

A
Cheapest Retailer
-
$3,117 NZD
A
Retailer 2
-
$3,135 NZD
View
A
Retailer 3
-
$3,359 NZD
View
Final sale: no returns
A
Retailer 4
-
$3,411 NZD
View
A
Retailer 5
-
$3,635 NZD
View
A
Retailer 6
-
$3,660 NZD
View
A
Retailer 7
-
$3,698 NZD
View
A
Retailer 8
-
$3,712 NZD
View
A
Retailer 9
-
$3,725 NZD
View
A
Retailer 10
-
$3,842 NZD
View
A
Retailer 11
-
$3,896 NZD
View
A
Retailer 12
-
$3,940 NZD
View
A
Retailer 13
-
$4,127 NZD
View
A
Retailer 14
-
$4,138 NZD
View
B+
Retailer 15
-
$4,365 NZD
View
B+
Retailer 16
-
$4,418 NZD
View
B+
Retailer 17
-
$4,903 NZD
View
B+
Retailer 18
-
$4,990 NZD
View
Retailer 19
-
$5,303 NZD
View
Price last confirmed 31 days ago
B
Retailer 20
-
$6,323 NZD
View
Most Expensive
B
MOH London
E22E25E2B · Nov 7
$7,001 NZD
£3,056 GBP
View
20 more retailers have this diamond
Prices start from $3,117 NZDSave up to $3,884 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.

A
1.20ct Cushion
$3,117 NZD