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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 €837 EUR
$935 USD
As of October 30, 2026
Save €3,621 EUR (81%) vs most expensive(unlock to see where)
24 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 LG790611819 or 790611819. Listed at 24 retailers as of October 30, 2026, with prices from €837 to €4,458, a €3,621 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 angle35.4°
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: Oct 30
Current: €4,458 EUR|Low: €837 EUR|High: €4,458 EUR|Avg: €1,976 EUR
Brilliant Earth
Retailer 2
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Retailer 22
November 1, 2026
Retailer 15€837 EUR
Retailer 5€910 EUR
Retailer 11€937 EUR
Retailer 4€971 EUR
Retailer 19€971 EUR
Retailer 3€1,123 EUR
Retailer 17€1,128 EUR
Retailer 22€1,139 EUR
Retailer 9€1,159 EUR
Retailer 2€1,496 EUR
Retailer 18€1,543 EUR
Retailer 10€1,555 EUR
Retailer 16€1,785 EUR
Retailer 21€2,160 EUR
Retailer 8€2,687 EUR
Retailer 20€2,730 EUR
Retailer 6€3,038 EUR
Retailer 12€3,168 EUR
Retailer 14€3,259 EUR
Retailer 13€3,310 EUR
Retailer 7€3,377 EUR
Brilliant Earth€4,458 EUR

37 data points across 22 retailers

24 retailers€837 EUR to €4,458 EUR

A
Cheapest Retailer
-
€837 EUR
$935 USD
A
Retailer 2
-
€910 EUR
$1,017 USD
View
A
Retailer 3
-
€937 EUR
$1,047 USD
View
Final sale: no returns
Retailer 4
-
€971 EUR
$1,085 USD
View
Price last confirmed 16 days ago
A
Retailer 5
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€971 EUR
$1,085 USD
View
A
Retailer 6
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€1,123 EUR
HK$9,800 HKD
View
A
Retailer 7
-
€1,128 EUR
$1,260 USD
View
A
Retailer 8
-
€1,139 EUR
$1,273 USD
View
A
Retailer 9
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€1,159 EUR
$1,295 USD
View
A
Retailer 10
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€1,496 EUR
£1,316 GBP
View
B+
Retailer 11
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€1,543 EUR
View
A
Retailer 12
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€1,555 EUR
$1,737 USD
View
B+
Retailer 13
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€1,785 EUR
ZAR 32,213 ZAR
View
B+
Retailer 14
-
€2,160 EUR
$2,413 USD
View
B
Retailer 15
-
€2,687 EUR
£2,364 GBP
View
B
Retailer 16
-
€2,730 EUR
$3,050 USD
View
B+
Retailer 17
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€2,884 EUR
$3,222 USD
View
B
Retailer 18
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€3,038 EUR
$3,394 USD
View
B
Retailer 19
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€3,168 EUR
$3,539 USD
View
B
Retailer 20
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€3,259 EUR
SGD 4,920 SGD
View
B
Retailer 21
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€3,310 EUR
£2,912 GBP
View
Retailer 22
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€3,367 EUR
$3,762 USD
View
Price last confirmed 84 days ago
B
Retailer 23
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€3,377 EUR
$3,773 USD
View
Most Expensive
B
Brilliant Earth
19074259A · Oct 31
€4,458 EUR
$4,980 USD
View
23 more retailers have this diamond
Prices start from €837 EURSave up to €3,621 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
€837 EUR