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Cushion|Natural|GIA

1.50ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 3555518161

Certificate GIA 3555518161

Diamond specifications and retailer prices

From $3,947 NZD
As of November 6, 2026
Save $4,784 NZD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,731 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3555518161. Listed at 13 retailers as of November 4, 2026, with prices from $3,947 to $8,731, a $4,784 spread on the same certified stone. MOH London lists it at $8,731. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 3555518161
Dimensions7.59 × 5.96 × 4.21 mm
L/W Ratio1.27
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural
Top View
7.59 mm5.96 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 3555518161
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 70.6%

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: $8,731 NZD|Low: $3,902 NZD|High: $8,903 NZD|Avg: $5,599 NZD|-1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$3,947 NZD
Retailer 2$4,198 NZD
Retailer 6$4,629 NZD
Retailer 8$5,233 NZD
Retailer 9$5,480 NZD
Retailer 4$5,507 NZD
Retailer 10$5,700 NZD
Retailer 3$6,092 NZD
Retailer 5$6,388 NZD
MOH London$8,731 NZD

32 data points across 10 retailers

13 retailers$3,947 NZD to $8,731 NZD

A
Cheapest Retailer
-
$3,947 NZD
A
Retailer 2
-
$4,198 NZD
View
B+
Retailer 3
-
$4,629 NZD
View
B+
Retailer 4
-
$4,914 NZD
View
B+
Retailer 5
-
$4,916 NZD
View
B+
Retailer 6
-
$5,226 NZD
View
Retailer 7
-
$5,233 NZD
View
Price last confirmed 21 days ago
B+
Retailer 8
-
$5,480 NZD
View
B+
Retailer 9
-
$5,507 NZD
View
B+
Retailer 10
-
$5,700 NZD
View
B+
Retailer 11
-
$6,092 NZD
View
B+
Retailer 12
-
$6,388 NZD
View
Most Expensive
B
MOH London
94D18FCE6 · Nov 4
$8,731 NZD
£3,811 GBP
View
12 more retailers have this diamond
Prices start from $3,947 NZDSave up to $4,784 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
$3,947 NZD