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Cushion|Natural|GIA

1.50ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 1559373415

Certificate GIA 1559373415

Diamond specifications and retailer prices

From $4,548 NZD
As of November 6, 2026
Save $5,514 NZD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $10,062 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559373415. Listed at 12 retailers as of November 4, 2026, with prices from $4,548 to $10,062, a $5,514 spread on the same certified stone. MOH London lists it at $10,062. 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

1.50
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559373415
Dimensions7.65 × 5.90 × 4.11 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Cavity, Indented Natural
Top View
7.65 mm5.90 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 1559373415
Side View
Table 68.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 69.7%

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: $10,062 NZD|Low: $4,524 NZD|High: $10,273 NZD|Avg: $6,325 NZD|-2.1%
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 10$4,548 NZD
Retailer 2$4,806 NZD
Retailer 7$5,367 NZD
Retailer 4$6,012 NZD
Retailer 3$6,070 NZD
Retailer 8$6,247 NZD
Retailer 11$6,292 NZD
Retailer 6$6,324 NZD
Retailer 9$6,440 NZD
Retailer 5$7,023 NZD
MOH London$10,062 NZD

28 data points across 11 retailers

12 retailers$4,548 NZD to $10,062 NZD

A
Cheapest Retailer
-
$4,548 NZD
A
Retailer 2
-
$4,806 NZD
View
A
Retailer 3
-
$5,367 NZD
View
B+
Retailer 4
-
$5,650 NZD
View
B+
Retailer 5
-
$6,012 NZD
View
Retailer 6
-
$6,070 NZD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$6,247 NZD
View
B+
Retailer 8
-
$6,292 NZD
View
B+
Retailer 9
-
$6,324 NZD
View
B+
Retailer 10
-
$6,440 NZD
View
B+
Retailer 11
-
$7,023 NZD
View
Most Expensive
B
MOH London
9336CC951 · Nov 4
$10,062 NZD
£4,392 GBP
View
11 more retailers have this diamond
Prices start from $4,548 NZDSave up to $5,514 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
1.50ct Cushion
$4,548 NZD