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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 €1,030 EUR
$1,151 USD
As of November 1, 2026
Save €3,427 EUR (77%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €4,458 EUR at Brilliant Earth · As of October 31, 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 23 retailers as of October 31, 2026, with prices from €1,030 to €4,458, a €3,427 spread on the same certified stone. Brilliant Earth lists it at €4,458. 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
Color
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 1
Current: €4,458 EUR|Low: €883 EUR|High: €4,458 EUR|Avg: €2,105 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 1, 2026
Retailer 11€920 EUR
Retailer 4€1,067 EUR
Retailer 2€1,206 EUR
Retailer 6€1,222 EUR
Retailer 12€1,526 EUR
Retailer 5€1,539 EUR
Retailer 8€1,962 EUR
Retailer 10€2,036 EUR
Retailer 7€2,892 EUR
Retailer 3€3,151 EUR
Retailer 9€3,624 EUR
Brilliant Earth€4,458 EUR

35 data points across 12 retailers

23 retailers€1,030 EUR to €4,458 EUR

Retailer 1
-
€920 EUR
$1,028 USD
Price last confirmed 24 days ago
Retailer 2
-
€1,001 EUR
$1,118 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
€1,030 EUR
$1,151 USD
View
Final sale: no returns
Retailer 4
-
€1,067 EUR
$1,192 USD
View
Price last confirmed 30 days ago
Retailer 5
-
€1,067 EUR
$1,192 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
€1,168 EUR
$1,305 USD
View
A
Retailer 7
-
€1,206 EUR
£1,061 GBP
View
A
Retailer 8
-
€1,222 EUR
$1,365 USD
View
A
Retailer 9
-
€1,249 EUR
$1,395 USD
View
A
Retailer 10
-
€1,526 EUR
$1,705 USD
View
A
Retailer 11
-
€1,539 EUR
£1,354 GBP
View
B+
Retailer 12
-
€1,962 EUR
ZAR 35,405 ZAR
View
Retailer 13
-
€2,001 EUR
$2,235 USD
View
Price last confirmed 32 days ago
B+
Retailer 14
-
€2,036 EUR
$2,275 USD
View
B
Retailer 15
-
€2,892 EUR
View
B
Retailer 16
-
€2,946 EUR
£2,592 GBP
View
B
Retailer 17
-
€3,151 EUR
$3,520 USD
View
B
Retailer 18
-
€3,308 EUR
$3,696 USD
View
B
Retailer 19
-
€3,433 EUR
$3,835 USD
View
B
Retailer 20
-
€3,576 EUR
SGD 5,399 SGD
View
B
Retailer 21
-
€3,624 EUR
£3,188 GBP
View
B
Retailer 22
-
€3,723 EUR
$4,160 USD
View
Most Expensive
B
Brilliant Earth
19705255A · Oct 31
€4,458 EUR
$4,980 USD
View
22 more retailers have this diamond
Prices start from €1,030 EURSave up to €3,427 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
€1,030 EUR