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Radiant|Lab Grown|IGI

1.09ct E SI2 Radiant Lab Grown Diamond

ID • E/SI2 • IGI LG634405513

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG634405513

Diamond specifications and retailer prices

From HK$1,703 HKD
$217 USD
As of October 30, 2026
Save HK$6,817 HKD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$8,520 HKD at MOH London · As of October 29, 2026
View at MOH London

About this 1.09ct lab-grown radiant diamond

This 1.09ct lab-grown radiant 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 LG634405513 or 634405513. Listed at 14 retailers as of October 29, 2026, with prices from HK$1,703 to HK$8,520, a HK$6,817 spread on the same certified stone. MOH London lists it at HK$8,520. 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
E
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634405513
Dimensions6.62 × 5.03 × 3.63 mm
L/W Ratio1.32
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.62 mm5.03 mm1.09 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634405513
Side View
Table 65.0%Crown 40.8°Girdle: STK-THKPavilion 33.4°Culet: NoneDepth 72.2%

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: Oct 30
Current: HK$8,520 HKD|Low: HK$1,085 HKD|High: HK$8,580 HKD|Avg: HK$4,342 HKD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 10HK$1,085 HKD
Retailer 9HK$1,899 HKD
Retailer 7HK$2,511 HKD
Retailer 6HK$3,625 HKD
Retailer 2HK$3,925 HKD
Retailer 8HK$3,978 HKD
Retailer 5HK$6,795 HKD
Retailer 3HK$6,826 HKD
Retailer 4HK$6,905 HKD
MOH LondonHK$8,520 HKD

42 data points across 10 retailers

14 retailersHK$1,703 HKD to HK$8,520 HKD

A
Cheapest Retailer
-
HK$1,703 HKD
$217 USD
A
Retailer 2
-
HK$1,899 HKD
$242 USD
View
Final sale: no returns
A
Retailer 3
-
HK$1,977 HKD
$252 USD
View
A
Retailer 4
-
HK$2,119 HKD
$270 USD
View
A
Retailer 5
-
HK$2,119 HKD
$270 USD
View
A
Retailer 6
-
HK$2,511 HKD
$320 USD
View
B+
Retailer 7
-
HK$3,625 HKD
$462 USD
View
B+
Retailer 8
-
HK$3,925 HKD
£394 GBP
View
B+
Retailer 9
-
HK$3,978 HKD
$507 USD
View
B
Retailer 10
-
HK$4,419 HKD
View
B
Retailer 11
-
HK$6,795 HKD
$866 USD
View
B
Retailer 12
-
HK$6,826 HKD
$870 USD
View
B
Retailer 13
-
HK$6,905 HKD
$880 USD
View
Most Expensive
B
MOH London
LG634405513 · Oct 29
HK$8,520 HKD
£855 GBP
View
13 more retailers have this diamond
Prices start from HK$1,703 HKDSave up to HK$6,817 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 Radiant
HK$1,703 HKD