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0.51ct E I1 Round Natural Diamond

EX • E/I1 • IGI 274738077

Shape and cutting style on the report: Round brilliant

Certificate IGI 274738077

Diamond specifications and retailer prices

From HK$3,130 HKD
$399 USD
As of October 28, 2026
Save HK$8,858 HKD (74%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$11,988 HKD 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 top-tier cut grade and certified by IGI 274738077. Listed at 7 retailers as of October 28, 2026, with prices from HK$3,130 to HK$11,988, a HK$8,858 spread on the same certified stone. NZ Jewellers lists it at HK$11,988. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
E
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 274738077
Dimensions5.09 × 5.13 × 3.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
5.09 mm5.13 mm0.51 ctE / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 274738077
Side View
Table 56.0%Crown 36.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.4%

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: Oct 28
Current: HK$5,075 HKD|Low: HK$3,369 HKD|High: HK$5,075 HKD|Avg: HK$4,375 HKD|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 2HK$3,415 HKD
Retailer 3HK$4,432 HKD
Retailer 4HK$4,700 HKD
Retailer 1HK$5,075 HKD

19 data points across 4 retailers

7 retailersHK$3,130 HKD to HK$11,988 HKD

A
Cheapest Retailer
-
HK$3,130 HKD
$399 USD
A
Retailer 2
-
HK$3,366 HKD
$429 USD
View
A
Retailer 3
-
HK$3,366 HKD
$429 USD
View
A
Retailer 4
-
HK$3,609 HKD
$460 USD
View
B+
Retailer 5
-
HK$4,432 HKD
$565 USD
View
B+
Retailer 6
-
HK$5,075 HKD
€616 EUR
View
Most Expensive
C
NZ Jewellers
ebe31410-8f7a-4dd7-9fa4-3b6dc0c0339e · Oct 30
HK$11,988 HKD
$1,528 USD
View
6 more retailers have this diamond
Prices start from HK$3,130 HKDSave up to HK$8,858 HKD

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 Round
HK$3,130 HKD