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Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

ID • I/SI1 • GIA 5242081367

Certificate GIA 5242081367

Diamond specifications and retailer prices

From $4,868 NZD
HK$21,400 HKD
As of November 2, 2026
Save $6,537 NZD (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $11,405 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5242081367. Listed at 22 retailers as of November 1, 2026, with prices from $4,868 to $11,405, a $6,537 spread on the same certified stone. MOH London lists it at $11,405. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5242081367
Dimensions6.70 × 6.32 × 4.35 mm
L/W Ratio1.06
Girdle conditionFaceted
Top View
6.70 mm6.32 mm1.51 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5242081367
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 68.8%

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 2
Current: $11,405 NZD|Low: $4,550 NZD|High: $11,405 NZD|Avg: $6,663 NZD|+1.4%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 13$4,868 NZD
Retailer 10$4,968 NZD
Retailer 6$5,187 NZD
Retailer 8$5,227 NZD
Retailer 21$5,574 NZD
Retailer 4$5,575 NZD
Retailer 5$5,577 NZD
Retailer 7$5,723 NZD
Retailer 18$5,798 NZD
Retailer 17$5,898 NZD
Retailer 20$6,007 NZD
Retailer 19$6,241 NZD
Retailer 12$6,373 NZD
Retailer 15$6,579 NZD
Retailer 11$6,674 NZD
Retailer 2$7,123 NZD
Retailer 14$7,181 NZD
Retailer 16$7,817 NZD
Retailer 3$8,383 NZD
Retailer 9$10,084 NZD
MOH London$11,405 NZD

21 data points across 21 retailers

22 retailers$4,868 NZD to $11,405 NZD

A
Cheapest Retailer
-
$4,868 NZD
HK$21,400 HKD
A
Retailer 2
-
$4,968 NZD
$2,795 USD
View
A
Retailer 3
-
$5,187 NZD
$2,919 USD
View
A
Retailer 4
-
$5,227 NZD
$2,941 USD
View
A
Retailer 5
-
$5,574 NZD
€2,987 EUR
View
A
Retailer 6
-
$5,575 NZD
$3,137 USD
View
A
Retailer 7
-
$5,577 NZD
$3,138 USD
View
A
Retailer 8
-
$5,723 NZD
$3,220 USD
View
A
Retailer 9
-
$5,798 NZD
$3,262 USD
View
Final sale: no returns
A
Retailer 10
-
$5,898 NZD
$3,319 USD
View
A
Retailer 11
-
$6,007 NZD
$3,380 USD
View
A
Retailer 12
-
$6,241 NZD
£2,765 GBP
View
Retailer 13
-
$6,373 NZD
SGD 4,846 SGD
View
Price last confirmed 14 days ago
Retailer 14
-
$6,565 NZD
€3,518 EUR
View
Price last confirmed 14 days ago
A
Retailer 15
-
$6,579 NZD
£2,915 GBP
View
A
Retailer 16
-
$7,123 NZD
$4,008 USD
View
Retailer 17
-
$7,181 NZD
A$6,216 AUD
View
Price last confirmed 24 days ago
B+
Retailer 18
-
$7,817 NZD
€4,189 EUR
View
B+
Retailer 19
-
$8,383 NZD
ZAR 76,198 ZAR
View
Retailer 20
-
$9,836 NZD
$5,534 USD
View
Price last confirmed 14 days ago
B+
Retailer 21
-
$10,084 NZD
$5,674 USD
View
Most Expensive
B+
MOH London
83C7A565F · Nov 1
$11,405 NZD
£5,053 GBP
View
21 more retailers have this diamond
Prices start from $4,868 NZDSave up to $6,537 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
$4,868 NZD