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Marquise|Lab Grown|IGI

4.20ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG814643393

Shape and cutting style on the report: Hexagonal modified brilliant

Certificate IGI LG814643393

Diamond specifications and retailer prices

From €5,545 EUR
$6,195 USD
As of October 31, 2026
Save €25,165 EUR (82%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €30,711 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.2ct lab-grown marquise diamond

This 4.2ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG814643393 or 814643393. Listed at 8 retailers as of October 31, 2026, with prices from €5,545 to €30,711, a €25,165 spread on the same certified stone. Do Amore Diamonds lists it at €30,711. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.20
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG814643393
Dimensions15.41 × 8.04 × 5.44 mm
L/W Ratio1.92
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.41 mm8.04 mm4.20 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG814643393
Side View
Table 63.0%Crown 35.3°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 67.7%

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: Oct 31
Current: €30,711 EUR|Low: €2,289 EUR|High: €30,711 EUR|Avg: €9,156 EUR|+149.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 4€5,545 EUR
Retailer 8€5,768 EUR
Retailer 9€6,645 EUR
Retailer 5€8,973 EUR
Retailer 3€12,493 EUR
Retailer 6€15,227 EUR
Retailer 2€19,225 EUR
Retailer 7€21,377 EUR
Do Amore Diamonds€30,711 EUR

37 data points across 9 retailers

8 retailers€5,545 EUR to €30,711 EUR

A
Cheapest Retailer
-
€5,545 EUR
$6,195 USD
A
Retailer 2
-
€5,768 EUR
$6,444 USD
View
Final sale: no returns
A
Retailer 3
-
€8,973 EUR
$10,025 USD
View
B+
Retailer 4
-
€12,493 EUR
£10,990 GBP
View
B
Retailer 5
-
€15,227 EUR
$17,012 USD
View
B
Retailer 6
-
€19,225 EUR
£16,912 GBP
View
B
Retailer 7
-
€21,377 EUR
$23,883 USD
View
Most Expensive
B
Do Amore Diamonds
20-E90950 · Oct 31
€30,711 EUR
$34,310 USD
View
7 more retailers have this diamond
Prices start from €5,545 EURSave up to €25,165 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
4.20ct Marquise
€5,545 EUR