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Radiant|Natural|IGI

1.51ct K VS1 Radiant Natural Diamond

VG • K/VS1 • IGI 821621185

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

Certificate IGI 821621185

Diamond specifications and retailer prices

From $5,374 NZD
As of November 6, 2026
Save $5,819 NZD (52%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $11,193 NZD at NZ Jewellers · As of November 3, 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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 821621185. Listed at 11 retailers as of November 3, 2026, with prices from $5,374 to $11,193, a $5,819 spread on the same certified stone. NZ Jewellers lists it at $11,193. 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
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.2°
Pavilion angle29.5°
OriginNatural
Grading LabIGI
CertificateIGI 821621185
Dimensions6.91 × 5.77 × 4.00 mm
L/W Ratio1.20
Top View
6.91 mm5.77 mm1.51 ctK / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 821621185
Side View
Table 57.0%Crown 36.2°Girdle: STK-THKPavilion 29.5°CuletDepth 69.3%

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: $6,178 NZD|Low: $5,374 NZD|High: $10,872 NZD|Avg: $7,498 NZD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 2$5,374 NZD
Retailer 3$6,020 NZD
Retailer 1$6,178 NZD
Retailer 7$6,673 NZD
Retailer 4$7,836 NZD
Retailer 5$7,842 NZD
Retailer 6$10,713 NZD

44 data points across 7 retailers

11 retailers$5,374 NZD to $11,193 NZD

A
Cheapest Retailer
-
$5,374 NZD
A
Retailer 2
-
$6,020 NZD
View
B+
Retailer 3
-
$6,178 NZD
View
B+
Retailer 4
-
$6,425 NZD
View
B+
Retailer 5
-
$6,673 NZD
View
B+
Retailer 6
-
$6,685 NZD
View
B+
Retailer 7
-
$7,412 NZD
View
B+
Retailer 8
-
$7,836 NZD
View
B+
Retailer 9
-
$7,842 NZD
View
B
Retailer 10
-
$10,713 NZD
View
Most Expensive
B
NZ Jewellers
ac3761aa-0dc6-4720-9af4-fb0f19618b43 · Nov 3
$11,193 NZD
$6,205 USD
View
10 more retailers have this diamond
Prices start from $5,374 NZDSave up to $5,819 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
$5,374 NZD