CaratHunter
Plans
Marquise|Lab Grown|IGI

1.20ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG825640531

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG825640531

Diamond specifications and retailer prices

From €223 EUR
As of November 4, 2026
Save €1,517 EUR (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €1,740 EUR at Brilliant Earth · As of November 3, 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 LG825640531 or 825640531. Listed at 22 retailers as of November 3, 2026, with prices from €223 to €1,740, a €1,517 spread on the same certified stone. Brilliant Earth lists it at €1,740. 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 angle34.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825640531
Dimensions10.66 × 5.58 × 3.52 mm
L/W Ratio1.91
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
10.66 mm5.58 mm1.20 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825640531
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €520 EUR|Low: €223 EUR|High: €1,411 EUR|Avg: €708 EUR|-37.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 5, 2026
Retailer 5€223 EUR
Retailer 6€249 EUR
Retailer 2€276 EUR
Retailer 15€276 EUR
Retailer 7€373 EUR
Retailer 13€417 EUR
Retailer 17€473 EUR
Retailer 11€477 EUR
Retailer 1€520 EUR
Retailer 10€675 EUR
Retailer 3€689 EUR
Retailer 14€690 EUR
Retailer 16€888 EUR
Retailer 4€933 EUR
Retailer 12€1,107 EUR
Retailer 8€1,203 EUR
Retailer 9€1,389 EUR

41 data points across 17 retailers

22 retailers€223 EUR to €1,740 EUR

A
Cheapest Retailer
-
€223 EUR
A
Retailer 2
-
€249 EUR
View
Final sale: no returns
Retailer 3
-
€266 EUR
View
Price last confirmed 28 days ago
Retailer 4
-
€276 EUR
View
Price last confirmed 11 days ago
A
Retailer 5
-
€276 EUR
View
Retailer 6
-
€309 EUR
View
Price last confirmed 37 days ago
Retailer 7
-
€330 EUR
View
Price last confirmed 33 days ago
A
Retailer 8
-
€373 EUR
View
A
Retailer 9
-
€417 EUR
View
Retailer 10
-
€473 EUR
View
Price last confirmed 9 days ago
A
Retailer 11
-
€477 EUR
View
A
Retailer 12
-
€520 EUR
View
A
Retailer 13
-
€675 EUR
View
B+
Retailer 14
-
€689 EUR
View
B+
Retailer 15
-
€690 EUR
View
B+
Retailer 16
-
€888 EUR
View
B+
Retailer 17
-
€933 EUR
View
Retailer 18
-
€1,061 EUR
View
Price last confirmed 36 days ago
B+
Retailer 19
-
€1,107 EUR
View
B
Retailer 20
-
€1,203 EUR
View
Retailer 21
-
€1,389 EUR
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
22457764A · Nov 3
€1,740 EUR
$1,960 USD
View
21 more retailers have this diamond
Prices start from €223 EURSave up to €1,517 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
€223 EUR