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Marquise|Lab Grown|IGI

1.09ct E FL Marquise Lab Grown Diamond

EX • E/FL • IGI LG787621431

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG787621431

Diamond specifications and retailer prices

From HK$3,314 HKD
As of October 31, 2026
Save HK$9,239 HKD (74%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$12,553 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.09ct lab-grown marquise diamond

This 1.09ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG787621431 or 787621431. Listed at 13 retailers as of October 31, 2026, with prices from HK$3,314 to HK$12,553, a HK$9,239 spread on the same certified stone. Brilliant Earth lists it at HK$12,553. 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
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787621431
Dimensions10.72 × 5.51 × 3.38 mm
L/W Ratio1.95
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
10.72 mm5.51 mm1.09 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787621431
Side View
Table 59.0%Crown 33.9°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.3%

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 31
Current: HK$12,553 HKD|Low: HK$3,314 HKD|High: HK$20,317 HKD|Avg: HK$8,513 HKD|-26.9%
Brilliant Earth
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
October 31, 2026
Retailer 10HK$3,314 HKD
Retailer 3HK$3,389 HKD
Retailer 13HK$3,970 HKD
Retailer 7HK$4,004 HKD
Retailer 11HK$4,025 HKD
Retailer 9HK$4,122 HKD
Retailer 2HK$4,559 HKD
Retailer 12HK$5,268 HKD
Retailer 4HK$7,741 HKD
Retailer 14HK$9,054 HKD
Retailer 8HK$9,665 HKD
Retailer 5HK$12,192 HKD
Brilliant EarthHK$12,553 HKD
Retailer 6HK$16,868 HKD

42 data points across 14 retailers

13 retailersHK$3,314 HKD to HK$12,553 HKD

A
Cheapest Retailer
-
HK$3,314 HKD
A
Retailer 2
-
HK$3,389 HKD
$432 USD
View
A
Retailer 3
-
HK$3,970 HKD
$506 USD
View
A
Retailer 4
-
HK$4,004 HKD
€486 EUR
View
A
Retailer 5
-
HK$4,025 HKD
$513 USD
View
A
Retailer 6
-
HK$4,122 HKD
ZAR 8,488 ZAR
View
A
Retailer 7
-
HK$4,559 HKD
£457 GBP
View
Retailer 8
-
HK$5,268 HKD
$671 USD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
HK$7,741 HKD
A$1,518 AUD
View
B+
Retailer 10
-
HK$9,054 HKD
$1,154 USD
View
B+
Retailer 11
-
HK$9,665 HKD
£970 GBP
View
B
Retailer 12
-
HK$12,192 HKD
$1,554 USD
View
Most Expensive
B
Brilliant Earth
20870155Y · Oct 31
HK$12,553 HKD
$1,600 USD
View
12 more retailers have this diamond
Prices start from HK$3,314 HKDSave up to HK$9,239 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 Marquise
HK$3,314 HKD