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Cushion|Natural|GIA

1.51ct J SI2 Cushion Natural Diamond

EX • J/SI2 • GIA 2245053874

Certificate GIA 2245053874

Diamond specifications and retailer prices

From $3,886 NZD
As of November 5, 2026
Save $3,487 NZD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,373 NZD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded J 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 2245053874. Listed at 12 retailers as of November 5, 2026, with prices from $3,886 to $7,373, a $3,487 spread on the same certified stone. Helzberg Diamonds lists it at $7,373. 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2245053874
Dimensions7.40 × 5.82 × 4.04 mm
L/W Ratio1.27
Culet sizeNone
Top View
7.40 mm5.82 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245053874
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 69.4%

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 5
Current: $7,373 NZD|Low: $3,864 NZD|High: $7,941 NZD|Avg: $5,123 NZD|-7.2%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 6$3,886 NZD
Retailer 2$4,079 NZD
Retailer 8$4,111 NZD
Retailer 4$4,194 NZD
Retailer 5$4,402 NZD
Retailer 12$4,479 NZD
Retailer 3$4,481 NZD
Retailer 10$4,854 NZD
Retailer 7$4,871 NZD
Retailer 11$5,100 NZD
Retailer 9$6,976 NZD
Helzberg Diamonds$7,373 NZD

31 data points across 12 retailers

12 retailers$3,886 NZD to $7,373 NZD

A
Cheapest Retailer
-
$3,886 NZD
A
Retailer 2
-
$4,079 NZD
View
A
Retailer 3
-
$4,111 NZD
View
Retailer 4
-
$4,194 NZD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$4,402 NZD
View
A
Retailer 6
-
$4,479 NZD
View
A
Retailer 7
-
$4,481 NZD
View
A
Retailer 8
-
$4,854 NZD
View
A
Retailer 9
-
$4,871 NZD
View
A
Retailer 10
-
$5,100 NZD
View
B+
Retailer 11
-
$6,976 NZD
View
Most Expensive
B+
Helzberg Diamonds
XZRIIKLGLJONK · Nov 6
$7,373 NZD
$4,087 USD
View
11 more retailers have this diamond
Prices start from $3,886 NZDSave up to $3,487 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
$3,886 NZD