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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 €378 EUR
HK$3,300 HKD
As of October 31, 2026
Save €1,054 EUR (74%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,432 EUR 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 €378 to €1,432, a €1,054 spread on the same certified stone. Brilliant Earth lists it at €1,432. 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
Color
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: €1,432 EUR|Low: €378 EUR|High: €2,318 EUR|Avg: €967 EUR|-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
November 1, 2026
Retailer 10€378 EUR
Retailer 3€387 EUR
Retailer 13€453 EUR
Retailer 7€457 EUR
Retailer 11€459 EUR
Retailer 9€470 EUR
Retailer 2€520 EUR
Retailer 12€601 EUR
Retailer 4€883 EUR
Retailer 14€1,033 EUR
Retailer 8€1,103 EUR
Retailer 5€1,391 EUR
Brilliant Earth€1,432 EUR
Retailer 6€1,924 EUR

43 data points across 14 retailers

13 retailers€378 EUR to €1,432 EUR

A
Cheapest Retailer
-
€378 EUR
HK$3,300 HKD
A
Retailer 2
-
€387 EUR
$432 USD
View
A
Retailer 3
-
€453 EUR
$506 USD
View
A
Retailer 4
-
€457 EUR
View
A
Retailer 5
-
€459 EUR
$513 USD
View
A
Retailer 6
-
€470 EUR
ZAR 8,488 ZAR
View
A
Retailer 7
-
€520 EUR
£457 GBP
View
Retailer 8
-
€601 EUR
$671 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
€883 EUR
A$1,518 AUD
View
B+
Retailer 10
-
€1,033 EUR
$1,154 USD
View
B+
Retailer 11
-
€1,103 EUR
£970 GBP
View
B
Retailer 12
-
€1,391 EUR
$1,554 USD
View
Most Expensive
B
Brilliant Earth
20870155Y · Oct 31
€1,432 EUR
$1,600 USD
View
12 more retailers have this diamond
Prices start from €378 EURSave up to €1,054 EUR

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
€378 EUR