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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 €404 EUR
$451 USD
As of October 30, 2026
Save €1,834 EUR (82%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: €2,238 EUR at Brilliant Earth · As of October 30, 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 October 30, 2026, with prices from €404 to €2,238, a €1,834 spread on the same certified stone. Brilliant Earth lists it at €2,238. 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
Color
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

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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: €2,238 EUR|Low: €404 EUR|High: €2,757 EUR|Avg: €1,238 EUR|-18.8%
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
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
October 31, 2026
Retailer 9€404 EUR
Retailer 5€452 EUR
Retailer 20€469 EUR
Retailer 7€500 EUR
Retailer 4€550 EUR
Retailer 23€627 EUR
Retailer 12€671 EUR
Retailer 11€781 EUR
Retailer 24€797 EUR
Retailer 13€829 EUR
Retailer 6€831 EUR
Retailer 22€860 EUR
Retailer 8€1,000 EUR
Retailer 19€1,140 EUR
Retailer 21€1,166 EUR
Retailer 15€1,588 EUR
Retailer 10€1,609 EUR
Retailer 16€1,638 EUR
Retailer 2€1,756 EUR
Retailer 14€1,786 EUR
Retailer 3€1,842 EUR
Retailer 17€2,126 EUR
Retailer 18€2,150 EUR
Brilliant Earth€2,238 EUR

28 data points across 24 retailers

28 retailers€404 EUR to €2,238 EUR

A
Cheapest Retailer
-
€404 EUR
$451 USD
A
Retailer 2
-
€452 EUR
$505 USD
View
A
Retailer 3
-
€469 EUR
$524 USD
View
Final sale: no returns
Retailer 4
-
€500 EUR
$559 USD
View
Price last confirmed 15 days ago
A
Retailer 5
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€500 EUR
$559 USD
View
A
Retailer 6
-
€550 EUR
HK$4,800 HKD
View
A
Retailer 7
-
€627 EUR
$700 USD
View
A
Retailer 8
-
€671 EUR
$750 USD
View
A
Retailer 9
-
€781 EUR
$873 USD
View
A
Retailer 10
-
€797 EUR
View
A
Retailer 11
-
€829 EUR
£729 GBP
View
A
Retailer 12
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€831 EUR
A$1,428 AUD
View
A
Retailer 13
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€860 EUR
ZAR 15,530 ZAR
View
A
Retailer 14
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€1,000 EUR
$1,117 USD
View
A
Retailer 15
-
€1,140 EUR
$1,274 USD
View
A
Retailer 16
-
€1,166 EUR
A$2,004 AUD
View
A
Retailer 17
-
€1,211 EUR
$1,353 USD
View
B+
Retailer 18
-
€1,588 EUR
SGD 2,397 SGD
View
B+
Retailer 19
-
€1,609 EUR
$1,798 USD
View
B+
Retailer 20
-
€1,638 EUR
$1,830 USD
View
B+
Retailer 21
-
€1,681 EUR
$1,878 USD
View
B+
Retailer 22
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€1,756 EUR
$1,962 USD
View
B+
Retailer 23
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€1,786 EUR
$1,995 USD
View
B+
Retailer 24
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€1,842 EUR
£1,620 GBP
View
Retailer 25
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€2,126 EUR
$2,375 USD
View
Price last confirmed 24 days ago
B+
Retailer 26
-
€2,150 EUR
A$3,696 AUD
View
B+
Retailer 27
-
€2,194 EUR
£1,930 GBP
View
Most Expensive
B+
Brilliant Earth
20474298A · Oct 30
€2,238 EUR
$2,500 USD
View
27 more retailers have this diamond
Prices start from €404 EURSave up to €1,834 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
€404 EUR