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Marquise|Lab Grown|IGI

1.55ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG790654384

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790654384

Diamond specifications and retailer prices

From €402 EUR
$451 USD
As of November 2, 2026
Save €1,827 EUR (82%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: €2,229 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.55ct lab-grown marquise diamond

This 1.55ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790654384 or 790654384. Listed at 28 retailers as of November 2, 2026, with prices from €402 to €2,229, a €1,827 spread on the same certified stone. Brilliant Earth lists it at €2,229. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790654384
Dimensions11.77 × 6.07 × 3.79 mm
L/W Ratio1.94
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.77 mm6.07 mm1.55 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790654384
Side View
Table 59.0%Crown 34.6°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 62.4%

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 2
Current: €2,229 EUR|Low: €402 EUR|High: €2,746 EUR|Avg: €1,236 EUR|-18.8%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
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Retailer 24
November 2, 2026
Retailer 9€402 EUR
Retailer 18€449 EUR
Retailer 5€450 EUR
Retailer 7€498 EUR
Retailer 4€548 EUR
Retailer 24€624 EUR
Retailer 12€669 EUR
Retailer 11€778 EUR
Retailer 3€794 EUR
Retailer 13€818 EUR
Retailer 6€828 EUR
Retailer 2€860 EUR
Retailer 8€996 EUR
Retailer 22€1,136 EUR
Retailer 23€1,161 EUR
Retailer 15€1,581 EUR
Retailer 10€1,603 EUR
Retailer 16€1,632 EUR
Retailer 20€1,749 EUR
Retailer 14€1,779 EUR
Retailer 19€1,832 EUR
Retailer 17€2,118 EUR
Retailer 21€2,142 EUR
Brilliant Earth€2,229 EUR

29 data points across 24 retailers

28 retailers€402 EUR to €2,229 EUR

A
Cheapest Retailer
-
€402 EUR
$451 USD
A
Retailer 2
-
€449 EUR
$504 USD
View
Final sale: no returns
A
Retailer 3
-
€450 EUR
$505 USD
View
Retailer 4
-
€498 EUR
$559 USD
View
Price last confirmed 17 days ago
A
Retailer 5
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€498 EUR
$559 USD
View
A
Retailer 6
-
€548 EUR
HK$4,800 HKD
View
A
Retailer 7
-
€624 EUR
$700 USD
View
A
Retailer 8
-
€669 EUR
$750 USD
View
A
Retailer 9
-
€778 EUR
$873 USD
View
A
Retailer 10
-
€794 EUR
View
A
Retailer 11
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€818 EUR
£723 GBP
View
A
Retailer 12
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€828 EUR
A$1,428 AUD
View
A
Retailer 13
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€860 EUR
ZAR 15,585 ZAR
View
A
Retailer 14
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€996 EUR
$1,117 USD
View
A
Retailer 15
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€1,136 EUR
$1,274 USD
View
A
Retailer 16
-
€1,161 EUR
A$2,004 AUD
View
Retailer 17
-
€1,206 EUR
$1,353 USD
View
Price last confirmed 7 days ago
B+
Retailer 18
-
€1,581 EUR
SGD 2,397 SGD
View
B+
Retailer 19
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€1,603 EUR
$1,798 USD
View
B+
Retailer 20
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€1,632 EUR
$1,830 USD
View
B+
Retailer 21
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€1,674 EUR
$1,878 USD
View
B+
Retailer 22
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€1,749 EUR
$1,962 USD
View
B+
Retailer 23
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€1,779 EUR
$1,995 USD
View
B+
Retailer 24
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€1,832 EUR
£1,618 GBP
View
Retailer 25
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€2,118 EUR
$2,375 USD
View
Price last confirmed 26 days ago
B+
Retailer 26
-
€2,142 EUR
A$3,696 AUD
View
B+
Retailer 27
-
€2,185 EUR
£1,930 GBP
View
Most Expensive
B+
Brilliant Earth
20474298A · Nov 2
€2,229 EUR
$2,500 USD
View
27 more retailers have this diamond
Prices start from €402 EURSave up to €1,827 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
1.55ct Marquise
€402 EUR