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Cushion|Natural|GIA

1.50ct K SI1 Cushion Natural Diamond

GD • K/SI1 • GIA 5231995738

Certificate GIA 5231995738

Diamond specifications and retailer prices

From $3,878 NZD
As of November 6, 2026
Save $5,033 NZD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,912 NZD at MOH London · As of November 2, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 5231995738. Listed at 16 retailers as of November 2, 2026, with prices from $3,878 to $8,912, a $5,033 spread on the same certified stone. MOH London lists it at $8,912. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231995738
Dimensions7.46 × 5.72 × 4.15 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
7.46 mm5.72 mm1.50 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231995738
Side View
Table 67.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 72.5%

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: $8,912 NZD|Low: $3,810 NZD|High: $9,359 NZD|Avg: $5,796 NZD|-4.8%
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
November 6, 2026
Retailer 4$3,878 NZD
Retailer 12$4,452 NZD
Retailer 11$4,658 NZD
Retailer 14$4,889 NZD
Retailer 2$4,894 NZD
Retailer 6$4,925 NZD
Retailer 10$5,309 NZD
Retailer 5$5,314 NZD
Retailer 7$5,356 NZD
Retailer 9$5,395 NZD
Retailer 3$5,704 NZD
Retailer 8$5,873 NZD
Retailer 13$6,159 NZD
Retailer 15$8,182 NZD
MOH London$8,912 NZD

24 data points across 15 retailers

16 retailers$3,878 NZD to $8,912 NZD

A
Cheapest Retailer
-
$3,878 NZD
B+
Retailer 2
-
$4,452 NZD
View
B+
Retailer 3
-
$4,658 NZD
View
Final sale: no returns
B+
Retailer 4
-
$4,889 NZD
View
B+
Retailer 5
-
$4,894 NZD
View
B+
Retailer 6
-
$4,925 NZD
View
B+
Retailer 7
-
$5,309 NZD
View
B+
Retailer 8
-
$5,314 NZD
View
B+
Retailer 9
-
$5,356 NZD
View
B+
Retailer 10
-
$5,395 NZD
View
B+
Retailer 11
-
$5,625 NZD
View
B+
Retailer 12
-
$5,704 NZD
View
B+
Retailer 13
-
$5,873 NZD
View
B+
Retailer 14
-
$6,159 NZD
View
B
Retailer 15
-
$8,182 NZD
View
Most Expensive
B
MOH London
0D01DAB4C · Nov 2
$8,912 NZD
£3,890 GBP
View
15 more retailers have this diamond
Prices start from $3,878 NZDSave up to $5,033 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
$3,878 NZD