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Cushion|Natural|GIA

1.51ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 5546300939

Certificate GIA 5546300939

Diamond specifications and retailer prices

From $5,433 NZD
$3,062 USD
As of October 31, 2026
Save $5,115 NZD (48%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $10,548 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5546300939. Listed at 14 retailers as of October 31, 2026, with prices from $5,433 to $10,548, a $5,115 spread on the same certified stone. MOH London lists it at $10,548. 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

1.51
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.42°
Pavilion angle31.98°
OriginNatural
Grading LabGIA
CertificateGIA 5546300939
Dimensions6.35 × 6.22 × 4.34 mm
L/W Ratio1.02
Top View
6.35 mm6.22 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5546300939
Side View
Table 61.0%Crown 38.42°Girdle: THK-VTKPavilion 31.98°Culet: 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: Oct 31
Current: $10,548 NZD|Low: $5,433 NZD|High: $12,439 NZD|Avg: $7,329 NZD|-14.3%
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
November 2, 2026
Retailer 12$5,433 NZD
Retailer 3$5,450 NZD
Retailer 7$5,898 NZD
Retailer 4$6,061 NZD
Retailer 13$6,198 NZD
Retailer 9$6,269 NZD
Retailer 8$6,547 NZD
Retailer 11$6,547 NZD
Retailer 6$6,655 NZD
Retailer 10$6,760 NZD
Retailer 2$7,012 NZD
Retailer 5$9,195 NZD
MOH London$10,548 NZD

43 data points across 13 retailers

14 retailers$5,433 NZD to $10,548 NZD

A
Cheapest Retailer
-
$5,433 NZD
$3,062 USD
A
Retailer 2
-
$5,450 NZD
$3,072 USD
View
A
Retailer 3
-
$5,898 NZD
CA$4,617 CAD
View
A
Retailer 4
-
$6,061 NZD
$3,416 USD
View
A
Retailer 5
-
$6,198 NZD
$3,493 USD
View
A
Retailer 6
-
$6,269 NZD
$3,533 USD
View
A
Retailer 7
-
$6,547 NZD
$3,690 USD
View
A
Retailer 8
-
$6,547 NZD
$3,690 USD
View
A
Retailer 9
-
$6,655 NZD
£2,953 GBP
View
A
Retailer 10
-
$6,760 NZD
$3,810 USD
View
A
Retailer 11
-
$7,012 NZD
€3,764 EUR
View
A
Retailer 12
-
$7,506 NZD
CA$5,876 CAD
View
Retailer 13
-
$9,195 NZD
$5,182 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
MOH London
CC9B938F1 · Nov 1
$10,548 NZD
£4,681 GBP
View
13 more retailers have this diamond
Prices start from $5,433 NZDSave up to $5,115 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
1.51ct Cushion
$5,433 NZD