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Cushion|Natural|GIA

1.50ct K SI2 Cushion Natural Diamond

ID • K/SI2 • GIA 2558676335

Certificate GIA 2558676335

Diamond specifications and retailer prices

From $4,524 NZD
As of November 6, 2026
Save $5,476 NZD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $10,000 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 2558676335. Listed at 12 retailers as of November 4, 2026, with prices from $4,524 to $10,000, a $5,476 spread on the same certified stone. MOH London lists it at $10,000. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558676335
Dimensions7.60 × 5.83 × 4.00 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle, Indented Natural
Top View
7.60 mm5.83 mm1.50 ctK / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2558676335
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.6%

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: $10,000 NZD|Low: $4,503 NZD|High: $10,245 NZD|Avg: $6,332 NZD|-2.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$4,524 NZD
Retailer 2$4,777 NZD
Retailer 5$5,334 NZD
Retailer 10$6,034 NZD
Retailer 6$6,204 NZD
Retailer 9$6,254 NZD
Retailer 4$6,285 NZD
Retailer 7$6,404 NZD
Retailer 3$6,977 NZD
MOH London$10,000 NZD

32 data points across 10 retailers

12 retailers$4,524 NZD to $10,000 NZD

A
Cheapest Retailer
-
$4,524 NZD
A
Retailer 2
-
$4,777 NZD
View
A
Retailer 3
-
$5,334 NZD
View
B+
Retailer 4
-
$5,616 NZD
View
Retailer 5
-
$6,034 NZD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$6,204 NZD
View
B+
Retailer 7
-
$6,223 NZD
View
B+
Retailer 8
-
$6,254 NZD
View
B+
Retailer 9
-
$6,285 NZD
View
B+
Retailer 10
-
$6,404 NZD
View
B+
Retailer 11
-
$6,977 NZD
View
Most Expensive
B
MOH London
B313B6A2B · Nov 4
$10,000 NZD
£4,365 GBP
View
11 more retailers have this diamond
Prices start from $4,524 NZDSave up to $5,476 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
$4,524 NZD