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Marquise|Lab Grown|IGI

1.55ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG790611664

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790611664

Diamond specifications and retailer prices

From €825 EUR
$922 USD
As of October 30, 2026
Save €3,632 EUR (81%) 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 LG790611664 or 790611664. Listed at 23 retailers as of October 30, 2026, with prices from €825 to €4,458, a €3,632 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 angle34.5°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790611664
Dimensions11.69 × 6.12 × 3.79 mm
L/W Ratio1.91
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
11.69 mm6.12 mm1.55 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790611664
Side View
Table 58.0%Crown 34.5°Girdle: MediumPavilion 39.9°Culet: NoneDepth 61.9%

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: €825 EUR|High: €4,458 EUR|Avg: €1,936 EUR
Brilliant Earth
Retailer 2
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Retailer 22
November 1, 2026
Retailer 15€825 EUR
Retailer 5€898 EUR
Retailer 11€924 EUR
Retailer 4€957 EUR
Retailer 20€957 EUR
Retailer 19€1,111 EUR
Retailer 17€1,114 EUR
Retailer 3€1,137 EUR
Retailer 9€1,147 EUR
Retailer 13€1,474 EUR
Retailer 18€1,521 EUR
Retailer 10€1,535 EUR
Retailer 16€1,760 EUR
Retailer 22€2,129 EUR
Retailer 8€2,646 EUR
Retailer 21€2,692 EUR
Retailer 6€2,995 EUR
Retailer 12€3,130 EUR
Retailer 14€3,212 EUR
Retailer 2€3,247 EUR
Retailer 7€3,328 EUR
Brilliant Earth€4,458 EUR

37 data points across 22 retailers

23 retailers€825 EUR to €4,458 EUR

A
Cheapest Retailer
-
€825 EUR
$922 USD
A
Retailer 2
-
€898 EUR
$1,003 USD
View
A
Retailer 3
-
€924 EUR
$1,032 USD
View
Final sale: no returns
A
Retailer 4
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€957 EUR
$1,069 USD
View
Retailer 5
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€957 EUR
$1,069 USD
View
Price last confirmed 15 days ago
A
Retailer 6
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€1,111 EUR
HK$9,700 HKD
View
A
Retailer 7
-
€1,114 EUR
$1,245 USD
View
A
Retailer 8
-
€1,137 EUR
$1,270 USD
View
A
Retailer 9
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€1,147 EUR
$1,281 USD
View
A
Retailer 10
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€1,474 EUR
£1,297 GBP
View
A
Retailer 11
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€1,521 EUR
View
A
Retailer 12
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€1,535 EUR
$1,715 USD
View
B+
Retailer 13
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€1,760 EUR
ZAR 31,758 ZAR
View
B+
Retailer 14
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€2,129 EUR
$2,379 USD
View
B
Retailer 15
-
€2,646 EUR
£2,328 GBP
View
B
Retailer 16
-
€2,692 EUR
$3,007 USD
View
B+
Retailer 17
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€2,842 EUR
$3,175 USD
View
B
Retailer 18
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€2,995 EUR
$3,346 USD
View
B
Retailer 19
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€3,130 EUR
$3,497 USD
View
B+
Retailer 20
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€3,212 EUR
SGD 4,849 SGD
View
B
Retailer 21
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€3,247 EUR
£2,856 GBP
View
B
Retailer 22
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€3,328 EUR
$3,718 USD
View
Most Expensive
B
Brilliant Earth
19074327A · Oct 31
€4,458 EUR
$4,980 USD
View
22 more retailers have this diamond
Prices start from €825 EURSave up to €3,632 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
€825 EUR