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Round|Lab Grown|IGI

1.21ct E SI2 Round Lab Grown Diamond

ID • E/SI2 • IGI LG766645929

Shape and cutting style on the report: Round brilliant

Certificate IGI LG766645929

Diamond specifications and retailer prices

From HK$1,271 HKD
As of November 1, 2026
Save HK$6,112 HKD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$7,383 HKD at MOH London · As of November 2, 2026
View at MOH London

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG766645929 or 766645929. Listed at 15 retailers as of November 1, 2026, with prices from HK$1,271 to HK$7,383, a HK$6,112 spread on the same certified stone. MOH London lists it at HK$7,383. 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

1.21
Carat
E
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766645929
Dimensions6.89 × 6.85 × 4.14 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.89 mm6.85 mm1.21 ctE / SI2
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766645929
Side View
Table 57.0%Crown 34.6°Girdle: MediumPavilion 40.1°Culet: NoneDepth 60.3%

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 1
Current: HK$7,383 HKD|Low: HK$1,224 HKD|High: HK$7,592 HKD|Avg: HK$3,295 HKD|-2.8%
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
Retailer 14
November 4, 2026
Retailer 12HK$1,271 HKD
Retailer 13HK$1,428 HKD
Retailer 6HK$1,553 HKD
Retailer 5HK$1,577 HKD
Retailer 7HK$2,722 HKD
Retailer 10HK$2,754 HKD
Retailer 3HK$2,856 HKD
Retailer 2HK$3,334 HKD
Retailer 14HK$3,538 HKD
Retailer 4HK$3,577 HKD
Retailer 9HK$3,640 HKD
Retailer 8HK$4,095 HKD
Retailer 11HK$4,393 HKD
MOH LondonHK$7,383 HKD

36 data points across 14 retailers

15 retailersHK$1,271 HKD to HK$7,383 HKD

A
Cheapest Retailer
-
HK$1,271 HKD
A
Retailer 2
-
HK$1,428 HKD
View
Final sale: no returns
Retailer 3
-
HK$1,553 HKD
View
Price last confirmed 52 days ago
Retailer 4
-
HK$1,577 HKD
View
Price last confirmed 12 days ago
A
Retailer 5
-
HK$2,722 HKD
View
A
Retailer 6
-
HK$2,754 HKD
View
B+
Retailer 7
-
HK$2,856 HKD
View
B+
Retailer 8
-
HK$3,295 HKD
View
B+
Retailer 9
-
HK$3,334 HKD
View
B+
Retailer 10
-
HK$3,538 HKD
View
B+
Retailer 11
-
HK$3,577 HKD
View
B+
Retailer 12
-
HK$3,640 HKD
View
B
Retailer 13
-
HK$4,095 HKD
View
B+
Retailer 14
-
HK$4,393 HKD
View
Most Expensive
B
MOH London
LG766645929 · Nov 2
HK$7,383 HKD
£741 GBP
View
14 more retailers have this diamond
Prices start from HK$1,271 HKDSave up to HK$6,112 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
1.21ct Round
HK$1,271 HKD