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Radiant|Natural|IGI

1.51ct E SI2 Radiant Natural Diamond

VG • E/SI2 • IGI 811694675

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 811694675

Diamond specifications and retailer prices

From $5,502 NZD
As of November 6, 2026
Save $6,739 NZD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $12,241 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 811694675. Listed at 13 retailers as of November 5, 2026, with prices from $5,502 to $12,241, a $6,739 spread on the same certified stone. NZ Jewellers lists it at $12,241. 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
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle34.1°
OriginNatural
Grading LabIGI
CertificateIGI 811694675
Dimensions7.96 × 5.61 × 3.84 mm
L/W Ratio1.42
Top View
7.96 mm5.61 mm1.51 ctE / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 811694675
Side View
Table 65.0%Crown 38.8°Girdle: STK-VTKPavilion 34.1°Culet: NoneDepth 68.4%

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 6
Current: $12,241 NZD|Low: $5,502 NZD|High: $12,692 NZD|Avg: $7,655 NZD|-3.6%
NZ Jewellers
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 6, 2026
Retailer 6$5,502 NZD
Retailer 3$5,697 NZD
Retailer 12$6,382 NZD
Retailer 10$6,485 NZD
Retailer 7$6,584 NZD
Retailer 5$6,810 NZD
Retailer 11$7,026 NZD
Retailer 2$7,252 NZD
Retailer 8$7,290 NZD
Retailer 13$7,297 NZD
Retailer 9$8,107 NZD
Retailer 4$12,052 NZD
NZ Jewellers$12,241 NZD

9 data points across 13 retailers

13 retailers$5,502 NZD to $12,241 NZD

A
Cheapest Retailer
-
$5,502 NZD
A
Retailer 2
-
$5,697 NZD
View
A
Retailer 3
-
$6,382 NZD
View
A
Retailer 4
-
$6,485 NZD
View
Final sale: no returns
A
Retailer 5
-
$6,584 NZD
View
A
Retailer 6
-
$6,810 NZD
View
A
Retailer 7
-
$7,026 NZD
View
A
Retailer 8
-
$7,252 NZD
View
A
Retailer 9
-
$7,290 NZD
View
B+
Retailer 10
-
$7,297 NZD
View
A
Retailer 11
-
$8,107 NZD
View
B+
Retailer 12
-
$12,052 NZD
View
Most Expensive
B+
NZ Jewellers
c2d1c589-ee5e-4412-bfd5-927f3777534f · Nov 5
$12,241 NZD
$6,786 USD
View
12 more retailers have this diamond
Prices start from $5,502 NZDSave up to $6,739 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 Radiant
$5,502 NZD