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Marquise|Lab Grown|IGI

1.20ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG799699355

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG799699355

Diamond specifications and retailer prices

From €373 EUR
As of November 4, 2026
Save €1,074 EUR (74%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €1,447 EUR at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799699355 or 799699355. Listed at 10 retailers as of November 4, 2026, with prices from €373 to €1,447, a €1,074 spread on the same certified stone. Brilliant Earth lists it at €1,447. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799699355
Dimensions10.84 × 5.52 × 3.50 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
10.84 mm5.52 mm1.20 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799699355
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 63.4%

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 4
Current: €1,447 EUR|Low: €373 EUR|High: €2,217 EUR|Avg: €851 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 8€373 EUR
Retailer 4€473 EUR
Retailer 6€499 EUR
Retailer 2€520 EUR
Retailer 5€689 EUR
Retailer 7€933 EUR
Retailer 3€1,107 EUR
Retailer 9€1,389 EUR
Brilliant Earth€1,447 EUR

40 data points across 9 retailers

10 retailers€373 EUR to €1,447 EUR

Retailer 1
-
€363 EUR
Price last confirmed 62 days ago
A
Retailer 2
-
€373 EUR
View
Retailer 3
-
€473 EUR
View
Price last confirmed 9 days ago
A
Retailer 4
-
€499 EUR
View
A
Retailer 5
-
€520 EUR
View
B+
Retailer 6
-
€689 EUR
View
B+
Retailer 7
-
€933 EUR
View
B+
Retailer 8
-
€1,107 EUR
View
Retailer 9
-
€1,389 EUR
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
19847259A · Nov 4
€1,447 EUR
$1,630 USD
View
9 more retailers have this diamond
Prices start from €373 EURSave up to €1,074 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
1.20ct Marquise
€373 EUR