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Cushion|Lab Grown|IGI

1.09ct E FL Cushion Lab Grown Diamond

GD • E/FL • IGI LG840635024

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840635024

Diamond specifications and retailer prices

From HK$3,227 HKD
£324 GBP
As of October 30, 2026
Save HK$12,025 HKD (79%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$15,252 HKD at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

About this 1.09ct lab-grown cushion diamond

This 1.09ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG840635024 or 840635024. Listed at 15 retailers as of October 30, 2026, with prices from HK$3,227 to HK$15,252, a HK$12,025 spread on the same certified stone. Helzberg Diamonds lists it at HK$15,252. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.09
Carat
E
Colour
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840635024
Dimensions7.59 × 5.18 × 3.47 mm
L/W Ratio1.47
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.59 mm5.18 mm1.09 ctE / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840635024
Side View
Table 63.0%Crown 35.9°Girdle: STK-THKPavilion 35.7°Culet: NoneDepth 67.0%

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$15,252 HKD|Low: HK$3,216 HKD|High: HK$17,261 HKD|Avg: HK$8,607 HKD|-1.3%
Helzberg Diamonds
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
Retailer 15
October 31, 2026
Retailer 11HK$3,227 HKD
Retailer 14HK$4,590 HKD
Retailer 3HK$4,935 HKD
Retailer 5HK$4,951 HKD
Retailer 2HK$5,058 HKD
Retailer 13HK$5,228 HKD
Retailer 15HK$5,335 HKD
Retailer 8HK$5,374 HKD
Retailer 9HK$7,493 HKD
Retailer 6HK$8,326 HKD
Retailer 4HK$10,141 HKD
Retailer 7HK$10,945 HKD
Retailer 12HK$12,256 HKD
Retailer 10HK$14,358 HKD
Helzberg DiamondsHK$15,252 HKD

15 data points across 15 retailers

15 retailersHK$3,227 HKD to HK$15,252 HKD

A
Cheapest Retailer
-
HK$3,227 HKD
£324 GBP
A
Retailer 2
-
HK$4,590 HKD
$585 USD
View
A
Retailer 3
-
HK$4,935 HKD
$629 USD
View
A
Retailer 4
-
HK$4,951 HKD
$631 USD
View
A
Retailer 5
-
HK$5,058 HKD
€614 EUR
View
A
Retailer 6
-
HK$5,228 HKD
ZAR 10,764 ZAR
View
A
Retailer 7
-
HK$5,335 HKD
$680 USD
View
A
Retailer 8
-
HK$5,374 HKD
£539 GBP
View
B+
Retailer 9
-
HK$7,493 HKD
$955 USD
View
B+
Retailer 10
-
HK$8,326 HKD
SGD 1,434 SGD
View
B
Retailer 11
-
HK$10,141 HKD
$1,293 USD
View
Retailer 12
-
HK$10,945 HKD
$1,395 USD
View
Price last confirmed 13 days ago
B
Retailer 13
-
HK$12,256 HKD
£1,230 GBP
View
B
Retailer 14
-
HK$14,358 HKD
$1,830 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMJLGIK · Oct 30
HK$15,252 HKD
$1,944 USD
View
14 more retailers have this diamond
Prices start from HK$3,227 HKDSave up to HK$12,025 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$3,227 HKD