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Cushion|Natural|IGI

1.51ct I SI2 Cushion Natural Diamond

VG • I/SI2 • IGI 729536826

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 729536826

Diamond specifications and retailer prices

From $7,090 NZD
$3,989 USD
As of November 1, 2026
Save $5,860 NZD (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $12,949 NZD at MOH London · As of November 2, 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 729536826. Listed at 11 retailers as of November 1, 2026, with prices from $7,090 to $12,949, a $5,860 spread on the same certified stone. MOH London lists it at $12,949. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 729536826
Dimensions10.88 × 6.05 × 3.91 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizePointed
Top View
10.88 mm6.05 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 729536826
Side View
Table 63.0%Crown 37.5°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $12,949 NZD|Low: $4,846 NZD|High: $15,133 NZD|Avg: $8,931 NZD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 4$4,846 NZD
Retailer 9$7,090 NZD
Retailer 12$7,180 NZD
Retailer 11$7,246 NZD
Retailer 10$7,504 NZD
Retailer 2$7,931 NZD
Retailer 6$8,065 NZD
Retailer 7$8,131 NZD
Retailer 8$8,397 NZD
Retailer 5$9,200 NZD
MOH London$12,949 NZD
Retailer 3$15,133 NZD

13 data points across 12 retailers

11 retailers$7,090 NZD to $12,949 NZD

B+
Cheapest Retailer
-
$7,090 NZD
$3,989 USD
B+
Retailer 2
-
$7,180 NZD
$4,040 USD
View
B+
Retailer 3
-
$7,246 NZD
$4,077 USD
View
B+
Retailer 4
-
$7,504 NZD
$4,222 USD
View
Final sale: no returns
B+
Retailer 5
-
$7,931 NZD
£3,514 GBP
View
B+
Retailer 6
-
$8,065 NZD
$4,538 USD
View
B+
Retailer 7
-
$8,131 NZD
$4,575 USD
View
B+
Retailer 8
-
$8,131 NZD
$4,575 USD
View
B+
Retailer 9
-
$8,397 NZD
$4,724 USD
View
B+
Retailer 10
-
$9,200 NZD
€4,930 EUR
View
Most Expensive
B
MOH London
B4A56073B · Nov 2
$12,949 NZD
£5,737 GBP
View
10 more retailers have this diamond
Prices start from $7,090 NZDSave up to $5,860 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.

B+
1.51ct Cushion
$7,090 NZD