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Marquise|Lab Grown|IGI

1.55ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG780685588

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780685588

Diamond specifications and retailer prices

From €1,025 EUR
As of November 4, 2026
Save €3,411 EUR (77%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €4,437 EUR at Brilliant Earth · As of November 3, 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 LG780685588 or 780685588. Listed at 25 retailers as of November 3, 2026, with prices from €1,025 to €4,437, a €3,411 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 angle35.6°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780685588
Dimensions11.67 × 6.08 × 3.87 mm
L/W Ratio1.92
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
11.67 mm6.08 mm1.55 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780685588
Side View
Table 60.0%Crown 35.6°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.7%

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: €879 EUR|High: €4,437 EUR|Avg: €2,156 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 11€916 EUR
Retailer 4€1,062 EUR
Retailer 5€1,197 EUR
Retailer 9€1,216 EUR
Retailer 2€1,516 EUR
Retailer 12€1,519 EUR
Retailer 7€1,954 EUR
Retailer 8€2,049 EUR
Retailer 10€2,878 EUR
Retailer 3€3,136 EUR
Retailer 6€3,602 EUR
Brilliant Earth€4,437 EUR

35 data points across 12 retailers

25 retailers€1,025 EUR to €4,437 EUR

Retailer 1
-
€916 EUR
Price last confirmed 28 days ago
Retailer 2
-
€996 EUR
View
Price last confirmed 21 days ago
A
Retailer 3
-
€1,025 EUR
View
Final sale: no returns
Retailer 4
-
€1,062 EUR
View
Price last confirmed 33 days ago
Retailer 5
-
€1,062 EUR
View
Price last confirmed 24 days ago
A
Retailer 6
-
€1,163 EUR
View
A
Retailer 7
-
€1,197 EUR
View
A
Retailer 8
-
€1,216 EUR
View
A
Retailer 9
-
€1,243 EUR
View
A
Retailer 10
-
€1,516 EUR
View
A
Retailer 11
-
€1,519 EUR
View
B+
Retailer 12
-
€1,954 EUR
View
Retailer 13
-
€1,991 EUR
View
Price last confirmed 36 days ago
B+
Retailer 14
-
€2,049 EUR
View
B+
Retailer 15
-
€2,220 EUR
View
Retailer 16
-
€2,878 EUR
View
Price last confirmed 7 days ago
B
Retailer 17
-
€2,932 EUR
View
B
Retailer 18
-
€3,136 EUR
View
B
Retailer 19
-
€3,293 EUR
View
B
Retailer 20
-
€3,417 EUR
View
B
Retailer 21
-
€3,559 EUR
View
B
Retailer 22
-
€3,602 EUR
View
B
Retailer 23
-
€3,705 EUR
View
B
Retailer 24
-
€4,437 EUR
View
Most Expensive
B
Brilliant Earth
19705255A · Nov 3
€4,437 EUR
$4,980 USD
View
24 more retailers have this diamond
Prices start from €1,025 EURSave up to €3,411 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
€1,025 EUR