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Marquise|Lab Grown|IGI

2.50ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG803613404

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG803613404

Diamond specifications and retailer prices

From €863 EUR
$964 USD
As of October 30, 2026
Save €3,738 EUR (81%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €4,601 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.5ct lab-grown marquise diamond

This 2.5ct lab-grown marquise sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG803613404 or 803613404. Listed at 21 retailers as of October 30, 2026, with prices from €863 to €4,601, a €3,738 spread on the same certified stone. Brilliant Earth lists it at €4,601. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.50
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803613404
Dimensions14.52 × 6.84 × 4.46 mm
L/W Ratio2.12
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.52 mm6.84 mm2.50 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803613404
Side View
Table 61.0%Crown 35.3°Girdle: STK-THKPavilion 41.2°Culet: NoneDepth 65.2%

Caratlytics Score

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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: €4,601 EUR|Low: €863 EUR|High: €7,089 EUR|Avg: €2,429 EUR|-35.1%
Brilliant Earth
Retailer 2
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Retailer 20
November 1, 2026
Retailer 3€863 EUR
Retailer 10€960 EUR
Retailer 7€966 EUR
Retailer 6€1,001 EUR
Retailer 2€1,012 EUR
Retailer 4€1,157 EUR
Retailer 16€1,231 EUR
Retailer 19€1,288 EUR
Retailer 13€1,543 EUR
Retailer 12€1,636 EUR
Retailer 11€1,705 EUR
Retailer 17€2,156 EUR
Retailer 18€2,308 EUR
Retailer 15€2,376 EUR
Retailer 8€2,769 EUR
Retailer 14€2,813 EUR
Retailer 20€3,103 EUR
Retailer 5€3,484 EUR
Retailer 9€3,492 EUR
Brilliant Earth€4,601 EUR

32 data points across 20 retailers

21 retailers€863 EUR to €4,601 EUR

A
Cheapest Retailer
-
€863 EUR
$964 USD
A
Retailer 2
-
€960 EUR
$1,073 USD
View
A
Retailer 3
-
€966 EUR
$1,079 USD
View
Final sale: no returns
A
Retailer 4
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€1,001 EUR
$1,118 USD
View
A
Retailer 5
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€1,012 EUR
£890 GBP
View
A
Retailer 6
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€1,157 EUR
HK$10,100 HKD
View
A
Retailer 7
-
€1,231 EUR
$1,375 USD
View
A
Retailer 8
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€1,288 EUR
$1,439 USD
View
A
Retailer 9
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€1,543 EUR
£1,357 GBP
View
A
Retailer 10
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€1,636 EUR
$1,828 USD
View
A
Retailer 11
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€1,705 EUR
View
A
Retailer 12
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€2,156 EUR
$2,409 USD
View
A
Retailer 13
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€2,308 EUR
$2,579 USD
View
A
Retailer 14
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€2,376 EUR
A$4,083 AUD
View
A
Retailer 15
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€2,769 EUR
£2,436 GBP
View
A
Retailer 16
-
€2,813 EUR
$3,143 USD
View
A
Retailer 17
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€3,103 EUR
$3,467 USD
View
A
Retailer 18
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€3,484 EUR
$3,893 USD
View
A
Retailer 19
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€3,492 EUR
£3,072 GBP
View
Retailer 20
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€3,867 EUR
$4,320 USD
View
Price last confirmed 35 days ago
Most Expensive
B+
Brilliant Earth
19883505A · Oct 31
€4,601 EUR
$5,140 USD
View
20 more retailers have this diamond
Prices start from €863 EURSave up to €3,738 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
2.50ct Marquise
€863 EUR