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Marquise|Lab Grown|IGI

1.51ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG812620850

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812620850

Diamond specifications and retailer prices

From €602 EUR
$675 USD
As of November 1, 2026
Save €2,291 EUR (79%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €2,893 EUR at MOH London · As of November 3, 2026
View at MOH London

About this 1.51ct lab-grown marquise diamond

This 1.51ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG812620850 or 812620850. Listed at 23 retailers as of November 1, 2026, with prices from €602 to €2,893, a €2,291 spread on the same certified stone. MOH London lists it at €2,893. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812620850
Dimensions11.80 × 6.03 × 3.64 mm
L/W Ratio1.96
Girdle conditionFaceted
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
11.80 mm6.03 mm1.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812620850
Side View
Table 61.0%Crown 34.3°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
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: €2,893 EUR|Low: €526 EUR|High: €2,986 EUR|Avg: €1,490 EUR|+4.3%
MOH London
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
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Retailer 8
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 3, 2026
Retailer 8€548 EUR
Retailer 4€602 EUR
Retailer 9€679 EUR
Retailer 10€679 EUR
Retailer 14€762 EUR
Retailer 17€938 EUR
Retailer 19€999 EUR
Retailer 6€1,032 EUR
Retailer 12€1,034 EUR
Retailer 2€1,145 EUR
Retailer 15€1,429 EUR
Retailer 16€1,552 EUR
Retailer 11€1,984 EUR
Retailer 3€2,022 EUR
Retailer 5€2,154 EUR
Retailer 7€2,162 EUR
Retailer 18€2,210 EUR
Retailer 13€2,425 EUR
MOH London€2,893 EUR

38 data points across 19 retailers

23 retailers€602 EUR to €2,893 EUR

Retailer 1
-
€548 EUR
$615 USD
Price last confirmed 25 days ago
A
Retailer 2
-
€602 EUR
$675 USD
View
Final sale: no returns
Retailer 3
-
€613 EUR
$688 USD
View
Price last confirmed 34 days ago
Retailer 4
-
€642 EUR
$720 USD
View
Price last confirmed 38 days ago
Retailer 5
-
€679 EUR
$762 USD
View
Price last confirmed 30 days ago
Retailer 6
-
€679 EUR
$762 USD
View
Price last confirmed 21 days ago
A
Retailer 7
-
€762 EUR
$855 USD
View
A
Retailer 8
-
€938 EUR
$1,052 USD
View
A
Retailer 9
-
€999 EUR
$1,120 USD
View
Retailer 10
-
€1,032 EUR
View
Price last confirmed 8 days ago
A
Retailer 11
-
€1,034 EUR
£913 GBP
View
A
Retailer 12
-
€1,145 EUR
ZAR 20,749 ZAR
View
A
Retailer 13
-
€1,429 EUR
$1,603 USD
View
B+
Retailer 14
-
€1,552 EUR
A$2,678 AUD
View
Retailer 15
-
€1,605 EUR
$1,800 USD
View
Price last confirmed 9 days ago
Retailer 16
-
€1,788 EUR
$2,005 USD
View
Price last confirmed 33 days ago
Retailer 17
-
€1,984 EUR
£1,752 GBP
View
Price last confirmed 22 days ago
B+
Retailer 18
-
€2,022 EUR
$2,268 USD
View
B+
Retailer 19
-
€2,154 EUR
$2,416 USD
View
B+
Retailer 20
-
€2,162 EUR
$2,425 USD
View
B
Retailer 21
-
€2,210 EUR
$2,478 USD
View
B+
Retailer 22
-
€2,425 EUR
$2,720 USD
View
Most Expensive
B
MOH London
LG812620850 · Nov 3
€2,893 EUR
£2,555 GBP
View
22 more retailers have this diamond
Prices start from €602 EURSave up to €2,291 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
1.51ct Marquise
€602 EUR