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Round|Lab Grown|IGI

0.51ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG414059611

Shape and cutting style on the report: Round brilliant

Certificate IGI LG414059611

Diamond specifications and retailer prices

From HK$2,903 HKD
As of November 5, 2026
Save HK$7,665 HKD (73%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$14,078 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG414059611 or 414059611. Listed at 12 retailers as of November 4, 2026, with a 264% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG414059611
Dimensions5.12 × 5.09 × 3.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT) Type II
Top View
5.12 mm5.09 mm0.51 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG414059611
Side View
Table 56.5%Crown 36.7°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 62.2%

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: Nov 5
Current: HK$14,078 HKD|Low: HK$1,930 HKD|High: HK$14,248 HKD|Avg: HK$5,841 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 5HK$1,930 HKD
Retailer 8HK$2,903 HKD
Retailer 9HK$2,903 HKD
Retailer 12HK$3,256 HKD
Retailer 4HK$3,373 HKD
Retailer 3HK$3,601 HKD
Retailer 10HK$3,601 HKD
Retailer 11HK$5,751 HKD
Retailer 2HK$6,425 HKD
Retailer 6HK$6,464 HKD
Retailer 7HK$10,567 HKD
Retailer 13HK$11,587 HKD
MOH LondonHK$14,078 HKD

44 data points across 13 retailers

12 retailersHK$2,903 HKD to HK$10,567 HKD

B+
Cheapest Retailer
-
HK$2,903 HKD
B+
Retailer 2
-
HK$2,903 HKD
View
B
Retailer 3
-
HK$3,256 HKD
View
Final sale: no returns
B
Retailer 4
-
HK$3,373 HKD
View
Retailer 5
-
HK$3,601 HKD
View
Price last confirmed 12 days ago
B
Retailer 6
-
HK$3,601 HKD
View
B
Retailer 7
-
HK$5,751 HKD
View
B
Retailer 8
-
HK$6,425 HKD
View
Retailer 9
-
HK$6,464 HKD
View
Price last confirmed 8 days ago
B
Retailer 10
-
HK$10,567 HKD
View
Retailer 11
-
HK$11,587 HKD
View
Price under review
Most Expensive
MOH London
LG414059611 · Nov 1
HK$14,078 HKD
£1,413 GBP
View
Price under review
11 more retailers have this diamond
Prices start from HK$2,903 HKDSave up to HK$7,665 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.

B+
0.51ct Round
HK$2,903 HKD