CaratHunter
Plans
Cushion|Lab Grown|IGI

1.09ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG604304627

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG604304627

Diamond specifications and retailer prices

From HK$2,116 HKD
As of November 5, 2026
Save HK$8,554 HKD (80%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$10,670 HKD at MOH London · As of November 5, 2026
View at MOH London

About this 1.09ct lab-grown cushion diamond

This 1.09ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG604304627 or 604304627. Listed at 8 retailers as of November 5, 2026, with prices from HK$2,116 to HK$10,670, a HK$8,554 spread on the same certified stone. MOH London lists it at HK$10,670. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG604304627
Dimensions7.03 × 5.54 × 3.68 mm
L/W Ratio1.27
Girdle conditionFaceted
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
7.03 mm5.54 mm1.09 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG604304627
Side View
Table 66.0%Crown 30.5°Girdle: MED-THKPavilion 40.1°Culet: NoneDepth 66.4%

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$10,670 HKD|Low: HK$1,669 HKD|High: HK$10,809 HKD|Avg: HK$3,689 HKD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 6HK$1,669 HKD
Retailer 2HK$2,116 HKD
Retailer 3HK$2,383 HKD
Retailer 8HK$2,414 HKD
Retailer 4HK$2,430 HKD
Retailer 5HK$2,618 HKD
Retailer 7HK$3,825 HKD
Retailer 9HK$4,702 HKD
MOH LondonHK$10,670 HKD

35 data points across 9 retailers

8 retailersHK$2,116 HKD to HK$10,670 HKD

A
Cheapest Retailer
-
HK$2,116 HKD
A
Retailer 2
-
HK$2,383 HKD
View
B+
Retailer 3
-
HK$2,414 HKD
View
A
Retailer 4
-
HK$2,430 HKD
View
A
Retailer 5
-
HK$2,618 HKD
View
B+
Retailer 6
-
HK$3,825 HKD
View
B
Retailer 7
-
HK$4,702 HKD
View
Most Expensive
B
MOH London
LG604304627 · Nov 5
HK$10,670 HKD
£1,072 GBP
View
7 more retailers have this diamond
Prices start from HK$2,116 HKDSave up to HK$8,554 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 Cushion
HK$2,116 HKD