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Radiant|Natural|IGI

0.51ct E SI2 Radiant Natural Diamond

VG • E/SI2 • IGI 692555290

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

Certificate IGI 692555290

Diamond specifications and retailer prices

From $608 NZD
As of November 6, 2026
Save $2,583 NZD (81%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $3,191 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 E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 692555290. Listed at 7 retailers as of November 5, 2026, with prices from $608 to $3,191, a $2,583 spread on the same certified stone. NZ Jewellers lists it at $3,191. 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
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle43.6°
Pavilion angle32.1°
OriginNatural
Grading LabIGI
CertificateIGI 692555290
Dimensions4.99 × 3.88 × 2.78 mm
L/W Ratio1.29
Culet sizePointed
Top View
4.99 mm3.88 mm0.51 ctE / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 692555290
Side View
Table 65.0%Crown 43.6°Girdle: STK-THKPavilion 32.1°Culet: NoneDepth 71.6%

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: $3,191 NZD|Low: $608 NZD|High: $3,305 NZD|Avg: $1,437 NZD|-3.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 3$608 NZD
Retailer 8$952 NZD
Retailer 5$1,043 NZD
Retailer 7$1,068 NZD
Retailer 6$1,169 NZD
Retailer 4$1,250 NZD
Retailer 2$1,912 NZD
NZ Jewellers$3,191 NZD

45 data points across 8 retailers

7 retailers$608 NZD to $3,191 NZD

A
Cheapest Retailer
-
$608 NZD
B+
Retailer 2
-
$1,043 NZD
View
B+
Retailer 3
-
$1,068 NZD
View
B+
Retailer 4
-
$1,169 NZD
View
B+
Retailer 5
-
$1,250 NZD
View
B
Retailer 6
-
$1,912 NZD
View
Most Expensive
C
NZ Jewellers
3599369e-94a5-43f8-95b4-21d066dc72ed · Nov 5
$3,191 NZD
$1,769 USD
View
6 more retailers have this diamond
Prices start from $608 NZDSave up to $2,583 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
$608 NZD