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Cushion|Lab Grown|IGI

1.09ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG840658745

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840658745

Diamond specifications and retailer prices

From HK$2,118 HKD
$270 USD
As of October 30, 2026
Save HK$2,526 HKD (54%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: HK$10,670 HKD at Rare Carat · As of October 19, 2026
View at Rare Carat

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840658745 or 840658745. Listed at 3 retailers as of October 30, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840658745
Dimensions7.24 × 5.33 × 3.58 mm
L/W Ratio1.36
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.24 mm5.33 mm1.09 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840658745
Side View
Table 59.0%Crown 36.2°Girdle: MED-THKPavilion 35.5°Culet: NoneDepth 67.2%

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$10,670 HKD|Low: HK$2,118 HKD|High: HK$10,749 HKD|Avg: HK$6,683 HKD|-0.7%
Rare Carat
Retailer 2
Retailer 3
October 31, 2026
Retailer 3HK$2,118 HKD
Retailer 2HK$4,644 HKD
Rare CaratHK$10,670 HKD

27 data points across 3 retailers

3 retailersHK$2,118 HKD to HK$4,644 HKD

A
Cheapest Retailer
-
HK$2,118 HKD
$270 USD
Final sale: no returns
A
Retailer 2
-
HK$4,644 HKD
£466 GBP
View
Most Expensive
Rare Carat
840658745 · Oct 19
HK$10,670 HKD
$1,360 USD
View
Price last confirmed 13 days ago
2 more retailers have this diamond
Prices start from HK$2,118 HKDSave up to HK$2,526 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$2,118 HKD