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Marquise|Lab Grown|IGI

1.09ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG689562578

Shape and cutting style on the report: Marquise modified brilliant

Certificate IGI LG689562578

Diamond specifications and retailer prices

From €225 EUR
As of November 4, 2026
Save €1,097 EUR (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,322 EUR at Brilliant Earth · As of November 4, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG689562578 or 689562578. Listed at 22 retailers as of November 4, 2026, with prices from €225 to €1,322, a €1,097 spread on the same certified stone. Brilliant Earth lists it at €1,322. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle32.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689562578
Dimensions9.73 × 5.08 × 3.34 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.73 mm5.08 mm1.09 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689562578
Side View
Table 57.0%Crown 33°Girdle: MED-STKPavilion 32.2°Culet: NoneDepth 65.7%

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: Nov 4
Current: €1,322 EUR|Low: €225 EUR|High: €1,615 EUR|Avg: €677 EUR|-18.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
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Retailer 11
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Retailer 21
November 5, 2026
Retailer 4€225 EUR
Retailer 8€252 EUR
Retailer 12€262 EUR
Retailer 19€280 EUR
Retailer 21€280 EUR
Retailer 10€377 EUR
Retailer 3€422 EUR
Retailer 18€478 EUR
Retailer 16€482 EUR
Retailer 5€498 EUR
Retailer 2€527 EUR
Retailer 6€584 EUR
Retailer 17€665 EUR
Retailer 15€684 EUR
Retailer 11€821 EUR
Retailer 20€899 EUR
Retailer 7€943 EUR
Retailer 14€981 EUR
Retailer 13€1,117 EUR
Retailer 9€1,212 EUR
Brilliant Earth€1,322 EUR

32 data points across 21 retailers

22 retailers€225 EUR to €1,322 EUR

A
Cheapest Retailer
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€225 EUR
A
Retailer 2
-
€252 EUR
View
Final sale: no returns
A
Retailer 3
-
€262 EUR
View
Retailer 4
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€280 EUR
View
Price last confirmed 11 days ago
A
Retailer 5
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€280 EUR
View
A
Retailer 6
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€377 EUR
View
A
Retailer 7
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€422 EUR
View
Retailer 8
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€478 EUR
View
Price last confirmed 9 days ago
A
Retailer 9
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€482 EUR
View
A
Retailer 10
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€498 EUR
View
A
Retailer 11
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€527 EUR
View
A
Retailer 12
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€584 EUR
View
B+
Retailer 13
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€665 EUR
View
B+
Retailer 14
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€684 EUR
View
Retailer 15
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€706 EUR
View
Price last confirmed 10 days ago
B+
Retailer 16
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€821 EUR
View
B+
Retailer 17
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€899 EUR
View
B+
Retailer 18
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€943 EUR
View
B+
Retailer 19
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€981 EUR
View
B+
Retailer 20
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€1,117 EUR
View
B
Retailer 21
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€1,212 EUR
View
Most Expensive
B
Brilliant Earth
15473140A · Nov 4
€1,322 EUR
$1,490 USD
View
21 more retailers have this diamond
Prices start from €225 EURSave up to €1,097 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
€225 EUR