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Round|Lab Grown|IGI

1.09ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG804642958

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804642958

Diamond specifications and retailer prices

From HK$1,122 HKD
As of November 5, 2026
Save HK$5,374 HKD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$6,496 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG804642958 or 804642958. Listed at 18 retailers as of November 4, 2026, with prices from HK$1,122 to HK$6,496, a HK$5,374 spread on the same certified stone. MOH London lists it at HK$6,496. 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

1.09
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804642958
Dimensions6.67 × 6.60 × 4.03 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.67 mm6.60 mm1.09 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804642958
Side View
Table 60.0%Crown 34.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.7%

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$6,496 HKD|Low: HK$1,122 HKD|High: HK$7,044 HKD|Avg: HK$3,167 HKD|-7.5%
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 6, 2026
Retailer 12HK$1,122 HKD
Retailer 11HK$1,302 HKD
Retailer 6HK$1,396 HKD
Retailer 8HK$2,361 HKD
Retailer 2HK$2,456 HKD
Retailer 3HK$2,597 HKD
Retailer 14HK$2,667 HKD
Retailer 7HK$3,083 HKD
Retailer 9HK$3,295 HKD
Retailer 13HK$3,342 HKD
Retailer 5HK$4,480 HKD
Retailer 10HK$4,731 HKD
Retailer 4HK$4,911 HKD
MOH LondonHK$6,496 HKD

36 data points across 14 retailers

18 retailersHK$1,122 HKD to HK$6,496 HKD

A
Cheapest Retailer
-
HK$1,122 HKD
A
Retailer 2
-
HK$1,302 HKD
View
A
Retailer 3
-
HK$1,396 HKD
View
Retailer 4
-
HK$1,491 HKD
View
Price last confirmed 12 days ago
A
Retailer 5
-
HK$2,361 HKD
View
A
Retailer 6
-
HK$2,456 HKD
View
A
Retailer 7
-
HK$2,597 HKD
View
B+
Retailer 8
-
HK$2,667 HKD
View
B+
Retailer 9
-
HK$3,083 HKD
View
B+
Retailer 10
-
HK$3,295 HKD
View
B+
Retailer 11
-
HK$3,295 HKD
View
B+
Retailer 12
-
HK$3,342 HKD
View
Retailer 13
-
HK$3,413 HKD
View
Price last confirmed 95 days ago
B+
Retailer 14
-
HK$3,562 HKD
View
B
Retailer 15
-
HK$4,480 HKD
View
B
Retailer 16
-
HK$4,731 HKD
View
B
Retailer 17
-
HK$4,911 HKD
View
Most Expensive
B
MOH London
LG804642958 · Nov 4
HK$6,496 HKD
£652 GBP
View
17 more retailers have this diamond
Prices start from HK$1,122 HKDSave up to HK$5,374 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
1.09ct Round
HK$1,122 HKD