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Round|Lab Grown|IGI

1.09ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG842612901

Shape and cutting style on the report: Round brilliant

Certificate IGI LG842612901

Diamond specifications and retailer prices

From HK$1,302 HKD
$166 USD
As of October 30, 2026
Save HK$3,613 HKD (74%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$6,746 HKD at MOH London · As of October 25, 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 LG842612901 or 842612901. Listed at 8 retailers as of October 30, 2026, with a 277% 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

1.09
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842612901
Dimensions6.58 × 6.56 × 4.09 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.58 mm6.56 mm1.09 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842612901
Side View
Table 58.0%Crown 34.7°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.2%

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: Oct 30
Current: HK$6,746 HKD|Low: HK$2,362 HKD|High: HK$6,815 HKD|Avg: HK$3,713 HKD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 3HK$2,390 HKD
Retailer 4HK$2,471 HKD
Retailer 6HK$2,597 HKD
Retailer 5HK$2,668 HKD
Retailer 2HK$3,102 HKD
Retailer 7HK$4,916 HKD
MOH LondonHK$6,746 HKD

17 data points across 7 retailers

8 retailersHK$1,302 HKD to HK$4,916 HKD

A
Cheapest Retailer
-
HK$1,302 HKD
$166 USD
A
Retailer 2
-
HK$2,390 HKD
£240 GBP
View
A
Retailer 3
-
HK$2,471 HKD
€300 EUR
View
A
Retailer 4
-
HK$2,597 HKD
$331 USD
View
A
Retailer 5
-
HK$2,668 HKD
$340 USD
View
B+
Retailer 6
-
HK$3,102 HKD
£311 GBP
View
B
Retailer 7
-
HK$4,916 HKD
$627 USD
View
Most Expensive
MOH London
LG842612901 · Oct 25
HK$6,746 HKD
£677 GBP
View
Price last confirmed 7 days ago
7 more retailers have this diamond
Prices start from HK$1,302 HKDSave up to HK$3,613 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$1,302 HKD