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Marquise|Lab Grown|IGI

4.09ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG761513916

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG761513916

Diamond specifications and retailer prices

From $4,207 USD
As of October 29, 2026
Save $11,349 USD (73%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $15,556 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 4.09ct lab-grown marquise diamond

This 4.09ct 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 LG761513916 or 761513916. Listed at 18 retailers as of October 29, 2026, with prices from $4,207 to $15,556, a $11,349 spread on the same certified stone. Taylor and Hart lists it at $15,556. 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

4.09
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761513916
Dimensions8.37 × 8.37 × 16.36 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.37 mm8.37 mm4.09 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG761513916
Side View
Table 57.0%Crown 34.2°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.2%

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 29
Current: $5,759 USD|Low: $4,207 USD|High: $22,358 USD|Avg: $10,346 USD|-30.0%
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
Taylor and Hart
October 30, 2026
Retailer 14$4,207 USD
Retailer 12$5,374 USD
Retailer 1$5,759 USD
Retailer 13$6,110 USD
Retailer 9$6,365 USD
Retailer 3$6,736 USD
Retailer 11$7,910 USD
Retailer 8$9,383 USD
Retailer 10$9,469 USD
Retailer 7$10,115 USD
Retailer 2$11,086 USD
Retailer 6$14,230 USD
Retailer 4$14,983 USD
Retailer 5$15,194 USD
Taylor and Hart$15,556 USD

44 data points across 15 retailers

18 retailers$4,207 USD to $15,556 USD

A
Cheapest Retailer
-
$4,207 USD
Final sale: no returns
A
Retailer 2
-
$5,374 USD
View
A
Retailer 3
-
$5,759 USD
£4,535 GBP
View
Retailer 4
-
$5,766 USD
View
Price last confirmed 31 days ago
A
Retailer 5
-
$6,110 USD
View
Retailer 6
-
$6,294 USD
View
Price last confirmed 31 days ago
A
Retailer 7
-
$6,365 USD
View
A
Retailer 8
-
$6,736 USD
£5,304 GBP
View
A
Retailer 9
-
$7,910 USD
View
A
Retailer 10
-
$9,383 USD
£7,388 GBP
View
Retailer 11
-
$9,469 USD
A$14,568 AUD
View
Price last confirmed 7 days ago
A
Retailer 12
-
$10,115 USD
€9,633 EUR
View
A
Retailer 13
-
$10,589 USD
View
B+
Retailer 14
-
$11,086 USD
View
B+
Retailer 15
-
$14,230 USD
View
B+
Retailer 16
-
$14,983 USD
SGD 20,247 SGD
View
Retailer 17
-
$15,194 USD
A$23,375 AUD
View
Price last confirmed 21 days ago
Most Expensive
B+
Taylor and Hart
IB45CX1 · Oct 30
$15,556 USD
View
17 more retailers have this diamond
Prices start from $4,207 USDSave up to $11,349 USD

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
4.09ct Marquise
$4,207 USD