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Oval|Lab Grown|IGI

1.18ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG818604621

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818604621

Diamond specifications and retailer prices

From HK$1,238 HKD
As of November 5, 2026
Save HK$5,928 HKD (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$7,167 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1.18ct lab-grown oval diamond

This 1.18ct lab-grown oval sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG818604621 or 818604621. Listed at 9 retailers as of November 4, 2026, with prices from HK$1,238 to HK$7,167, a HK$5,928 spread on the same certified stone. MOH London lists it at HK$7,167. 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

1.18
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818604621
Dimensions8.81 × 6.04 × 3.65 mm
L/W Ratio1.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.81 mm6.04 mm1.18 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818604621
Side View
Table 60.0%Crown 33.4°Girdle: THN-MEDPavilion 41.5°Culet: NoneDepth 60.4%

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 5
Current: HK$7,167 HKD|Low: HK$1,215 HKD|High: HK$7,167 HKD|Avg: HK$4,501 HKD|+4.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 4, 2026
Retailer 3HK$1,238 HKD
Retailer 5HK$1,442 HKD
Retailer 6HK$2,649 HKD
Retailer 7HK$4,060 HKD
Retailer 4HK$4,945 HKD
Retailer 8HK$5,094 HKD
Retailer 2HK$5,220 HKD
Retailer 9HK$6,105 HKD
MOH LondonHK$7,167 HKD

22 data points across 9 retailers

9 retailersHK$1,238 HKD to HK$7,167 HKD

A
Cheapest Retailer
-
HK$1,238 HKD
A
Retailer 2
-
HK$1,442 HKD
View
A
Retailer 3
-
HK$2,649 HKD
View
B+
Retailer 4
-
HK$4,060 HKD
View
B+
Retailer 5
-
HK$4,945 HKD
View
B
Retailer 6
-
HK$5,094 HKD
View
B
Retailer 7
-
HK$5,220 HKD
View
Retailer 8
-
HK$6,105 HKD
View
Price last confirmed 25 days ago
Most Expensive
B
MOH London
LG818604621 · Nov 4
HK$7,167 HKD
£720 GBP
View
8 more retailers have this diamond
Prices start from HK$1,238 HKDSave up to HK$5,928 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
1.18ct Oval
HK$1,238 HKD