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Marquise|Lab Grown|IGI

1.55ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG790611819

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790611819

Diamond specifications and retailer prices

From €833 EUR
As of November 4, 2026
Save €3,604 EUR (81%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €4,437 EUR at Brilliant Earth · As of November 4, 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790611819 or 790611819. Listed at 24 retailers as of November 4, 2026, with prices from €833 to €4,437, a €3,604 spread on the same certified stone. Brilliant Earth lists it at €4,437. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790611819
Dimensions11.81 × 6.10 × 3.82 mm
L/W Ratio1.94
Girdle conditionFaceted
Culet sizePointed
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
11.81 mm6.10 mm1.55 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790611819
Side View
Table 58.0%Crown 35.4°Girdle: MED-STKPavilion 40°Culet: NoneDepth 62.6%

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: Nov 4
Current: €4,437 EUR|Low: €833 EUR|High: €4,437 EUR|Avg: €2,001 EUR
Brilliant Earth
Retailer 2
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Retailer 22
November 5, 2026
Retailer 15€833 EUR
Retailer 5€906 EUR
Retailer 11€933 EUR
Retailer 4€967 EUR
Retailer 19€967 EUR
Retailer 3€1,117 EUR
Retailer 17€1,123 EUR
Retailer 22€1,134 EUR
Retailer 9€1,154 EUR
Retailer 2€1,475 EUR
Retailer 18€1,536 EUR
Retailer 10€1,548 EUR
Retailer 16€1,777 EUR
Retailer 21€2,150 EUR
Retailer 8€2,675 EUR
Retailer 20€2,717 EUR
Retailer 6€3,024 EUR
Retailer 12€3,153 EUR
Retailer 14€3,243 EUR
Retailer 13€3,278 EUR
Retailer 7€3,362 EUR
Brilliant Earth€4,437 EUR

38 data points across 22 retailers

24 retailers€833 EUR to €4,437 EUR

A
Cheapest Retailer
-
€833 EUR
A
Retailer 2
-
€906 EUR
View
A
Retailer 3
-
€933 EUR
View
Final sale: no returns
Retailer 4
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€967 EUR
View
Price last confirmed 19 days ago
A
Retailer 5
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€967 EUR
View
A
Retailer 6
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€1,117 EUR
View
A
Retailer 7
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€1,123 EUR
View
A
Retailer 8
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€1,134 EUR
View
A
Retailer 9
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€1,154 EUR
View
A
Retailer 10
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€1,475 EUR
View
Retailer 11
-
€1,536 EUR
View
Price last confirmed 9 days ago
A
Retailer 12
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€1,548 EUR
View
B+
Retailer 13
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€1,777 EUR
View
B+
Retailer 14
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€2,150 EUR
View
B
Retailer 15
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€2,675 EUR
View
B
Retailer 16
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€2,717 EUR
View
B+
Retailer 17
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€2,871 EUR
View
B
Retailer 18
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€3,024 EUR
View
B
Retailer 19
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€3,153 EUR
View
B
Retailer 20
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€3,243 EUR
View
B
Retailer 21
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€3,278 EUR
View
Retailer 22
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€3,351 EUR
View
Price last confirmed 88 days ago
B
Retailer 23
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€3,362 EUR
View
Most Expensive
B
Brilliant Earth
19074259A · Nov 4
€4,437 EUR
$4,980 USD
View
23 more retailers have this diamond
Prices start from €833 EURSave up to €3,604 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
€833 EUR