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 €225 EUR
$251 USD
As of October 30, 2026
Save €989 EUR (81%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €1,401 EUR at Rare Carat · As of October 21, 2026
View at Rare Carat

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 21 retailers as of October 30, 2026, with a 440% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €1,401 EUR|Low: €225 EUR|High: €2,236 EUR|Avg: €741 EUR|-1.6%
Rare Carat
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
October 31, 2026
Retailer 6€225 EUR
Retailer 7€251 EUR
Retailer 3€278 EUR
Retailer 15€278 EUR
Retailer 8€376 EUR
Retailer 10€421 EUR
Retailer 17€477 EUR
Retailer 13€478 EUR
Retailer 2€530 EUR
Retailer 14€678 EUR
Retailer 4€695 EUR
Retailer 11€695 EUR
Retailer 16€895 EUR
Retailer 5€941 EUR
Retailer 12€1,122 EUR
Retailer 9€1,214 EUR
Rare Carat€1,401 EUR

39 data points across 17 retailers

21 retailers€225 EUR to €1,214 EUR

A
Cheapest Retailer
-
€225 EUR
$251 USD
A
Retailer 2
-
€251 EUR
$280 USD
View
Final sale: no returns
Retailer 3
-
€269 EUR
$300 USD
View
Price last confirmed 24 days ago
A
Retailer 4
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€278 EUR
$311 USD
View
A
Retailer 5
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€278 EUR
$311 USD
View
Retailer 6
-
€311 EUR
$348 USD
View
Price last confirmed 33 days ago
Retailer 7
-
€333 EUR
$372 USD
View
Price last confirmed 29 days ago
A
Retailer 8
-
€376 EUR
$420 USD
View
A
Retailer 9
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€421 EUR
$470 USD
View
A
Retailer 10
-
€477 EUR
View
A
Retailer 11
-
€478 EUR
ZAR 8,633 ZAR
View
A
Retailer 12
-
€530 EUR
£466 GBP
View
B+
Retailer 13
-
€678 EUR
A$1,165 AUD
View
B+
Retailer 14
-
€695 EUR
$776 USD
View
B+
Retailer 15
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€695 EUR
$777 USD
View
B+
Retailer 16
-
€895 EUR
$1,000 USD
View
B+
Retailer 17
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€941 EUR
$1,052 USD
View
Retailer 18
-
€1,070 EUR
$1,195 USD
View
Price last confirmed 31 days ago
B+
Retailer 19
-
€1,122 EUR
£987 GBP
View
B+
Retailer 20
-
€1,214 EUR
$1,356 USD
View
Most Expensive
Rare Carat
NJ33 202 · Oct 21
€1,401 EUR
$1,565 USD
View
Price last confirmed 10 days ago
20 more retailers have this diamond
Prices start from €225 EURSave up to €989 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
€225 EUR