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1.27ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG656402458

Shape and cutting style on the report: Round brilliant

Certificate IGI LG656402458

Diamond specifications and retailer prices

From HK$1,177 HKD
As of November 5, 2026
Save HK$5,638 HKD (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$6,815 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1.27ct lab-grown round diamond

This 1.27ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG656402458 or 656402458. Listed at 20 retailers as of November 4, 2026, with prices from HK$1,177 to HK$6,815, a HK$5,638 spread on the same certified stone. MOH London lists it at HK$6,815. 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

1.27
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG656402458
Dimensions7.08 × 7.01 × 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 Type IIa
Top View
7.08 mm7.01 mm1.27 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG656402458
Side View
Table 61.0%Crown 32.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 59.0%

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$6,815 HKD|Low: HK$1,177 HKD|High: HK$6,915 HKD|Avg: HK$3,422 HKD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 10HK$1,177 HKD
Retailer 12HK$1,459 HKD
Retailer 2HK$2,487 HKD
Retailer 3HK$2,683 HKD
Retailer 7HK$2,801 HKD
Retailer 5HK$2,824 HKD
Retailer 4HK$3,115 HKD
Retailer 8HK$3,609 HKD
Retailer 6HK$3,648 HKD
Retailer 11HK$4,629 HKD
Retailer 9HK$4,958 HKD
MOH LondonHK$6,815 HKD

42 data points across 12 retailers

20 retailersHK$1,177 HKD to HK$6,815 HKD

Retailer 1
-
HK$1,177 HKD
Price last confirmed 45 days ago
A
Retailer 2
-
HK$1,177 HKD
View
Retailer 3
-
HK$1,365 HKD
View
Price last confirmed 45 days ago
Retailer 4
-
HK$1,444 HKD
View
Price last confirmed 45 days ago
Retailer 5
-
HK$1,459 HKD
View
Price last confirmed 12 days ago
A
Retailer 6
-
HK$1,459 HKD
View
A
Retailer 7
-
HK$2,487 HKD
View
B+
Retailer 8
-
HK$2,683 HKD
View
Retailer 9
-
HK$2,801 HKD
View
Price last confirmed 8 days ago
A
Retailer 10
-
HK$2,824 HKD
View
A
Retailer 11
-
HK$3,115 HKD
View
B+
Retailer 12
-
HK$3,452 HKD
View
B+
Retailer 13
-
HK$3,609 HKD
View
B+
Retailer 14
-
HK$3,648 HKD
View
Retailer 15
-
HK$3,726 HKD
View
Price last confirmed 47 days ago
B
Retailer 16
-
HK$4,629 HKD
View
B
Retailer 17
-
HK$4,699 HKD
View
Retailer 18
-
HK$4,699 HKD
View
Price last confirmed 46 days ago
B+
Retailer 19
-
HK$4,958 HKD
View
Most Expensive
B
MOH London
LG656402458 · Nov 4
HK$6,815 HKD
£684 GBP
View
19 more retailers have this diamond
Prices start from HK$1,177 HKDSave up to HK$5,638 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
1.27ct Round
HK$1,177 HKD