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0.51ct E I1 Round Natural Diamond

VG • E/I1 • IGI 265733540

Shape and cutting style on the report: Round brilliant

Certificate IGI 265733540

Diamond specifications and retailer prices

From $610 NZD
$344 USD
As of October 28, 2026
Save $1,732 NZD (74%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,342 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded E colour (colourless) and I1 clarity (included), with a very-good cut grade and certified by IGI 265733540. Listed at 7 retailers as of October 28, 2026, with prices from $610 to $2,342, a $1,732 spread on the same certified stone. NZ Jewellers lists it at $2,342. 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
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishGood
SymmetryVery Good
FluorescenceFaint
Crown angle38°
Pavilion angle41.5°
OriginNatural
Grading LabIGI
CertificateIGI 265733540
Dimensions4.97 × 4.99 × 3.26 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
4.97 mm4.99 mm0.51 ctE / I1
OriginNatural
CutVery Good
PolishGood
SymmetryVery Good
FluorescenceFaint
CertificateIGI 265733540
Side View
Table 57.5%Crown 38°Girdle: STK-THKPavilion 41.5°Culet: NoneDepth 65.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $1,133 NZD|Low: $650 NZD|High: $1,133 NZD|Avg: $885 NZD|+4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 2$659 NZD
Retailer 3$854 NZD
Retailer 4$918 NZD
Retailer 1$1,133 NZD

25 data points across 4 retailers

7 retailers$610 NZD to $2,342 NZD

B+
Cheapest Retailer
-
$610 NZD
$344 USD
B+
Retailer 2
-
$658 NZD
$371 USD
View
B+
Retailer 3
-
$681 NZD
$384 USD
View
B+
Retailer 4
-
$822 NZD
$463 USD
View
B+
Retailer 5
-
$854 NZD
$481 USD
View
B+
Retailer 6
-
$1,133 NZD
€608 EUR
View
Most Expensive
C
NZ Jewellers
123be8cd-e4cd-45fc-9cb7-c0e69be1ee0d · Oct 30
$2,342 NZD
$1,320 USD
View
6 more retailers have this diamond
Prices start from $610 NZDSave up to $1,732 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.

B+
0.51ct Round
$610 NZD