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Oval|Lab Grown|IGI

0.51ct E SI1 Oval Lab Grown Diamond

VG • E/SI1 • IGI LG400929381

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG400929381

Diamond specifications and retailer prices

From HK$2,751 HKD
As of November 5, 2026
Save HK$3,378 HKD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$13,308 HKD at MOH London · As of November 5, 2026
View at MOH London

About this 0.51ct lab-grown oval diamond

This 0.51ct lab-grown oval sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG400929381 or 400929381. Listed at 12 retailers as of November 5, 2026, with a 123% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG400929381
Dimensions6.09 × 4.47 × 2.91 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT) Type II
Top View
6.09 mm4.47 mm0.51 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG400929381
Side View
Table 56.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 65.1%

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$13,308 HKD|Low: HK$1,928 HKD|High: HK$13,507 HKD|Avg: HK$5,170 HKD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3HK$1,928 HKD
Retailer 6HK$2,751 HKD
Retailer 7HK$2,978 HKD
Retailer 10HK$3,080 HKD
Retailer 8HK$3,417 HKD
Retailer 11HK$3,417 HKD
Retailer 9HK$5,478 HKD
Retailer 4HK$6,082 HKD
Retailer 2HK$6,129 HKD
Retailer 5HK$10,016 HKD
MOH LondonHK$13,308 HKD

45 data points across 11 retailers

12 retailersHK$2,751 HKD to HK$6,129 HKD

B+
Cheapest Retailer
-
HK$2,751 HKD
B
Retailer 2
-
HK$2,978 HKD
View
B
Retailer 3
-
HK$3,080 HKD
View
Final sale: no returns
B
Retailer 4
-
HK$3,198 HKD
View
B
Retailer 5
-
HK$3,417 HKD
View
Retailer 6
-
HK$3,417 HKD
View
Price last confirmed 12 days ago
B
Retailer 7
-
HK$5,478 HKD
View
B
Retailer 8
-
HK$6,082 HKD
View
B
Retailer 9
-
HK$6,129 HKD
View
Retailer 10
-
HK$10,016 HKD
View
Price under review
Retailer 11
-
HK$10,980 HKD
View
Price under review
Most Expensive
MOH London
LG400929381 · Nov 5
HK$13,308 HKD
£1,337 GBP
View
Price under review
11 more retailers have this diamond
Prices start from HK$2,751 HKDSave up to HK$3,378 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 Oval
HK$2,751 HKD