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Cushion|Natural|GIA

1.51ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 2567210753

Certificate GIA 2567210753

Diamond specifications and retailer prices

From $4,056 NZD
$2,286 USD
As of October 30, 2026
Save $12,127 NZD (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $16,183 NZD at William & Sons Jewelers · As of November 2, 2026
View at William & Sons Jewelers

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded I 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 2567210753. Listed at 17 retailers as of October 30, 2026, with prices from $4,056 to $16,183, a $12,127 spread on the same certified stone. William & Sons Jewelers lists it at $16,183. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle34°
OriginNatural
Grading LabGIA
CertificateGIA 2567210753
Dimensions6.56 × 6.36 × 4.30 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizeNone
Top View
6.56 mm6.36 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2567210753
Side View
Table 63.0%Crown 38.5°Girdle: THN-STKPavilion 34°Culet: NoneDepth 67.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $5,873 NZD|Low: $4,056 NZD|High: $20,914 NZD|Avg: $6,669 NZD|-69.2%
Retailer 1
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
Retailer 16
William & Sons Jewelers
November 2, 2026
Retailer 3$4,056 NZD
Retailer 16$4,315 NZD
Retailer 6$4,446 NZD
Retailer 4$4,489 NZD
Retailer 13$4,608 NZD
Retailer 15$4,764 NZD
Retailer 14$4,764 NZD
Retailer 5$5,566 NZD
Retailer 8$5,688 NZD
Retailer 1$5,873 NZD
Retailer 2$5,873 NZD
Retailer 9$6,068 NZD
Retailer 10$6,256 NZD
Retailer 11$6,703 NZD
Retailer 12$6,746 NZD
Retailer 7$9,602 NZD
William & Sons Jewelers$16,183 NZD

26 data points across 17 retailers

17 retailers$4,056 NZD to $16,183 NZD

A
Cheapest Retailer
-
$4,056 NZD
$2,286 USD
A
Retailer 2
-
$4,315 NZD
HK$19,000 HKD
View
A
Retailer 3
-
$4,489 NZD
$2,530 USD
View
A
Retailer 4
-
$4,608 NZD
$2,597 USD
View
A
Retailer 5
-
$4,764 NZD
$2,685 USD
View
A
Retailer 6
-
$4,764 NZD
A$4,131 AUD
View
A
Retailer 7
-
$5,566 NZD
$3,137 USD
View
Retailer 8
-
$5,688 NZD
$3,206 USD
View
Price last confirmed 25 days ago
A
Retailer 9
-
$5,873 NZD
$3,310 USD
View
A
Retailer 10
-
$5,873 NZD
$3,310 USD
View
Retailer 11
-
$5,901 NZD
SGD 4,494 SGD
View
Price last confirmed 24 days ago
A
Retailer 12
-
$6,068 NZD
$3,420 USD
View
A
Retailer 13
-
$6,256 NZD
€3,358 EUR
View
B+
Retailer 14
-
$6,703 NZD
£2,975 GBP
View
A
Retailer 15
-
$6,746 NZD
$3,802 USD
View
Retailer 16
-
$9,602 NZD
£4,261 GBP
View
Price last confirmed 25 days ago
Most Expensive
C
William & Sons Jewelers
cert_2567210753 · Nov 2
$16,183 NZD
$9,121 USD
View
Final sale: no returns
16 more retailers have this diamond
Prices start from $4,056 NZDSave up to $12,127 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
$4,056 NZD