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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 $8,654 CAD
$6,195 USD
As of October 31, 2026
Save $39,274 CAD (82%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $47,928 CAD 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 $8,654 to $47,928, a $39,274 spread on the same certified stone. Do Amore Diamonds lists it at $47,928. 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
Color
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: $47,928 CAD|Low: $3,572 CAD|High: $47,928 CAD|Avg: $14,220 CAD|+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$8,654 CAD
Retailer 8$9,002 CAD
Retailer 9$10,371 CAD
Retailer 5$14,004 CAD
Retailer 3$19,497 CAD
Retailer 6$23,764 CAD
Retailer 2$30,003 CAD
Retailer 7$33,362 CAD
Do Amore Diamonds$47,928 CAD

38 data points across 9 retailers

8 retailers$8,654 CAD to $47,928 CAD

A
Cheapest Retailer
-
$8,654 CAD
$6,195 USD
A
Retailer 2
-
$9,002 CAD
$6,444 USD
View
Final sale: no returns
A
Retailer 3
-
$14,004 CAD
$10,025 USD
View
B+
Retailer 4
-
$19,497 CAD
£10,990 GBP
View
B
Retailer 5
-
$23,764 CAD
$17,012 USD
View
B
Retailer 6
-
$30,003 CAD
£16,912 GBP
View
B
Retailer 7
-
$33,362 CAD
$23,883 USD
View
Most Expensive
B
Do Amore Diamonds
20-E90950 · Oct 31
$47,928 CAD
$34,310 USD
View
7 more retailers have this diamond
Prices start from $8,654 CADSave up to $39,274 CAD

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
$8,654 CAD