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Round|Lab Grown|IGI

1.21ct E SI2 Round Lab Grown Diamond

EX • E/SI2 • IGI LG772660992

Shape and cutting style on the report: Round brilliant

Certificate IGI LG772660992

Diamond specifications and retailer prices

From HK$1,287 HKD
As of November 1, 2026
Save HK$6,176 HKD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$7,463 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 LG772660992 or 772660992. Listed at 15 retailers as of November 1, 2026, with prices from HK$1,287 to HK$7,463, a HK$6,176 spread on the same certified stone. MOH London lists it at HK$7,463. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG772660992
Dimensions6.81 × 6.70 × 4.20 mm
L/W Ratio1.02
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
6.81 mm6.70 mm1.21 ctE / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG772660992
Side View
Table 61.0%Crown 37.4°Girdle: MED-THKPavilion 40.8°Culet: NoneDepth 62.2%

Caratlytics Score

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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$7,463 HKD|Low: HK$1,240 HKD|High: HK$7,552 HKD|Avg: HK$3,295 HKD|-0.9%
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$1,287 HKD
Retailer 13HK$1,444 HKD
Retailer 6HK$1,569 HKD
Retailer 5HK$1,593 HKD
Retailer 8HK$2,746 HKD
Retailer 10HK$2,793 HKD
Retailer 3HK$2,871 HKD
Retailer 2HK$3,334 HKD
Retailer 14HK$3,554 HKD
Retailer 4HK$3,577 HKD
Retailer 9HK$3,679 HKD
Retailer 7HK$4,150 HKD
Retailer 11HK$4,393 HKD
MOH LondonHK$7,463 HKD

34 data points across 14 retailers

15 retailersHK$1,287 HKD to HK$7,463 HKD

A
Cheapest Retailer
-
HK$1,287 HKD
A
Retailer 2
-
HK$1,444 HKD
View
Final sale: no returns
Retailer 3
-
HK$1,569 HKD
View
Price last confirmed 52 days ago
Retailer 4
-
HK$1,593 HKD
View
Price last confirmed 12 days ago
A
Retailer 5
-
HK$2,746 HKD
View
A
Retailer 6
-
HK$2,793 HKD
View
B+
Retailer 7
-
HK$2,871 HKD
View
B+
Retailer 8
-
HK$3,334 HKD
View
B+
Retailer 9
-
HK$3,554 HKD
View
B+
Retailer 10
-
HK$3,577 HKD
View
B+
Retailer 11
-
HK$3,679 HKD
View
Retailer 12
-
HK$3,781 HKD
View
Price last confirmed 89 days ago
B
Retailer 13
-
HK$4,150 HKD
View
B+
Retailer 14
-
HK$4,393 HKD
View
Most Expensive
B
MOH London
LG772660992 · Nov 2
HK$7,463 HKD
£749 GBP
View
14 more retailers have this diamond
Prices start from HK$1,287 HKDSave up to HK$6,176 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$1,287 HKD