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Radiant|Natural|IGI

0.51ct H VS1 Radiant Natural Diamond

VG • H/VS1 • IGI 780655826

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

Certificate IGI 780655826

Diamond specifications and retailer prices

From $584 NZD
As of November 6, 2026
Save $2,399 NZD (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,984 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 780655826. Listed at 15 retailers as of November 5, 2026, with prices from $584 to $2,984, a $2,399 spread on the same certified stone. NZ Jewellers lists it at $2,984. 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

0.51
Carat
H
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.3°
Pavilion angle33.3°
OriginNatural
Grading LabIGI
CertificateIGI 780655826
Dimensions5.33 × 3.99 × 2.69 mm
L/W Ratio1.34
Culet sizePointed
Top View
5.33 mm3.99 mm0.51 ctH / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 780655826
Side View
Table 67.0%Crown 38.3°Girdle: STK-THKPavilion 33.3°Culet: NoneDepth 67.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,154 NZD|Low: $584 NZD|High: $1,817 NZD|Avg: $1,056 NZD|+29.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 4$584 NZD
Retailer 5$898 NZD
Retailer 8$974 NZD
Retailer 2$992 NZD
Retailer 1$1,154 NZD
Retailer 6$1,176 NZD
Retailer 7$1,207 NZD
Retailer 3$1,786 NZD

27 data points across 8 retailers

15 retailers$584 NZD to $2,984 NZD

A
Cheapest Retailer
-
$584 NZD
A
Retailer 2
-
$779 NZD
View
A
Retailer 3
-
$839 NZD
View
A
Retailer 4
-
$839 NZD
View
A
Retailer 5
-
$898 NZD
View
A
Retailer 6
-
$898 NZD
View
A
Retailer 7
-
$974 NZD
View
A
Retailer 8
-
$992 NZD
View
A
Retailer 9
-
$1,014 NZD
View
B+
Retailer 10
-
$1,154 NZD
View
A
Retailer 11
-
$1,176 NZD
View
B+
Retailer 12
-
$1,207 NZD
View
B
Retailer 13
-
$1,732 NZD
View
B+
Retailer 14
-
$1,786 NZD
View
Most Expensive
B
NZ Jewellers
5aca1e0d-214e-4b5b-ac49-095402fe6509 · Nov 5
$2,984 NZD
$1,654 USD
View
14 more retailers have this diamond
Prices start from $584 NZDSave up to $2,399 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
0.51ct Radiant
$584 NZD