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Radiant|Natural|IGI

1.51ct K SI2 Radiant Natural Diamond

VG • K/SI2 • IGI 660411129

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

Certificate IGI 660411129

Diamond specifications and retailer prices

From $3,126 NZD
As of November 4, 2026
Save $5,244 NZD (63%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,370 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 660411129. Listed at 13 retailers as of November 4, 2026, with prices from $3,126 to $8,370, a $5,244 spread on the same certified stone. NZ Jewellers lists it at $8,370. 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
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle45.8°
Pavilion angle31.6°
OriginNatural
Grading LabIGI
CertificateIGI 660411129
Dimensions7.20 × 5.77 × 3.99 mm
L/W Ratio1.25
Culet sizePointed
Top View
7.20 mm5.77 mm1.51 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 660411129
Side View
Table 66.0%Crown 45.8°Girdle: MED-STKPavilion 31.6°Culet: NoneDepth 69.2%

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 4
Current: $8,370 NZD|Low: $3,126 NZD|High: $8,370 NZD|Avg: $4,190 NZD
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
Retailer 14
November 6, 2026
Retailer 10$3,126 NZD
Retailer 12$3,352 NZD
Retailer 2$3,418 NZD
Retailer 8$3,431 NZD
Retailer 13$3,431 NZD
Retailer 3$3,433 NZD
Retailer 9$3,590 NZD
Retailer 11$3,601 NZD
Retailer 4$3,678 NZD
Retailer 14$3,960 NZD
Retailer 5$4,082 NZD
Retailer 6$4,688 NZD
Retailer 7$6,011 NZD
NZ Jewellers$8,370 NZD

38 data points across 14 retailers

13 retailers$3,126 NZD to $8,370 NZD

A
Cheapest Retailer
-
$3,126 NZD
B+
Retailer 2
-
$3,352 NZD
View
A
Retailer 3
-
$3,418 NZD
View
B+
Retailer 4
-
$3,431 NZD
View
Retailer 5
-
$3,431 NZD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$3,433 NZD
View
B+
Retailer 7
-
$3,590 NZD
View
B+
Retailer 8
-
$3,601 NZD
View
B+
Retailer 9
-
$3,678 NZD
View
Retailer 10
-
$3,960 NZD
View
Price last confirmed 61 days ago
B+
Retailer 11
-
$3,960 NZD
View
B+
Retailer 12
-
$6,011 NZD
View
Most Expensive
B
NZ Jewellers
befa1d0d-51a9-4245-bdd3-d044f374e15d · Nov 5
$8,370 NZD
$4,640 USD
View
12 more retailers have this diamond
Prices start from $3,126 NZDSave up to $5,244 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
$3,126 NZD