CaratHunter
Plans
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 $4,439 AUD
As of November 6, 2026
Save $5,437 AUD (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,876 AUD 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 $4,439 to $9,876, a $5,437 spread on the same certified stone. NZ Jewellers lists it at $9,876. 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: $9,876 AUD|Low: $4,439 AUD|High: $10,240 AUD|Avg: $6,176 AUD|-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$4,439 AUD
Retailer 3$4,596 AUD
Retailer 12$5,149 AUD
Retailer 10$5,232 AUD
Retailer 7$5,312 AUD
Retailer 5$5,494 AUD
Retailer 11$5,669 AUD
Retailer 2$5,851 AUD
Retailer 8$5,881 AUD
Retailer 13$5,887 AUD
Retailer 9$6,541 AUD
Retailer 4$9,724 AUD
NZ Jewellers$9,876 AUD

9 data points across 13 retailers

13 retailers$4,439 AUD to $9,876 AUD

A
Cheapest Retailer
-
$4,439 AUD
A
Retailer 2
-
$4,596 AUD
View
A
Retailer 3
-
$5,149 AUD
View
A
Retailer 4
-
$5,232 AUD
View
Final sale: no returns
A
Retailer 5
-
$5,312 AUD
View
A
Retailer 6
-
$5,494 AUD
View
A
Retailer 7
-
$5,669 AUD
View
A
Retailer 8
-
$5,851 AUD
View
A
Retailer 9
-
$5,881 AUD
View
B+
Retailer 10
-
$5,887 AUD
View
A
Retailer 11
-
$6,541 AUD
View
B+
Retailer 12
-
$9,724 AUD
View
Most Expensive
B+
NZ Jewellers
c2d1c589-ee5e-4412-bfd5-927f3777534f · Nov 5
$9,876 AUD
$6,786 USD
View
12 more retailers have this diamond
Prices start from $4,439 AUDSave up to $5,437 AUD

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
$4,439 AUD