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Round|Lab Grown|IGI

1.20ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG617427829

Shape and cutting style on the report: Round brilliant

Certificate IGI LG617427829

Diamond specifications and retailer prices

From HK$2,228 HKD
As of November 5, 2026
Save HK$1,302 HKD (37%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$8,160 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round 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 LG617427829 or 617427829. Listed at 6 retailers as of November 4, 2026, with a 58% 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

1.20
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617427829
Dimensions6.82 × 6.76 × 4.16 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.82 mm6.76 mm1.20 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617427829
Side View
Table 58.0%Crown 35.7°Girdle: ThickPavilion 40.1°Culet: NoneDepth 61.3%

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: Nov 5
Current: HK$8,160 HKD|Low: HK$2,228 HKD|High: HK$8,210 HKD|Avg: HK$3,859 HKD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6HK$2,228 HKD
Retailer 4HK$2,840 HKD
Retailer 2HK$3,075 HKD
Retailer 3HK$3,373 HKD
Retailer 5HK$3,530 HKD
MOH LondonHK$8,160 HKD

42 data points across 6 retailers

6 retailersHK$2,228 HKD to HK$3,530 HKD

A
Cheapest Retailer
-
HK$2,228 HKD
A
Retailer 2
-
HK$2,840 HKD
View
B+
Retailer 3
-
HK$3,075 HKD
View
B+
Retailer 4
-
HK$3,373 HKD
View
B+
Retailer 5
-
HK$3,530 HKD
View
Most Expensive
MOH London
LG617427829 · Oct 29
HK$8,160 HKD
£819 GBP
View
Price last confirmed 8 days ago
5 more retailers have this diamond
Prices start from HK$2,228 HKDSave up to HK$1,302 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
1.20ct Round
HK$2,228 HKD