CaratHunter
Plans
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 $5,989 AUD
$4,207 USD
As of October 31, 2026
Save $16,156 AUD (73%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $22,145 AUD at Taylor and Hart · As of October 31, 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 31, 2026, with prices from $5,989 to $22,145, a $16,156 spread on the same certified stone. Taylor and Hart lists it at $22,145. 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
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761513916
Dimensions16.36 × 8.37 × 5.29 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.36 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $21,365 AUD|Low: $5,989 AUD|High: $31,828 AUD|Avg: $14,766 AUD|-10.6%
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
November 1, 2026
Retailer 3$5,989 AUD
Retailer 14$7,650 AUD
Retailer 7$8,199 AUD
Retailer 2$8,698 AUD
Retailer 11$9,061 AUD
Retailer 5$9,589 AUD
Retailer 13$11,261 AUD
Retailer 10$13,357 AUD
Retailer 12$13,480 AUD
Retailer 9$14,399 AUD
Retailer 4$15,782 AUD
Retailer 8$16,428 AUD
Retailer 6$21,329 AUD
Retailer 1$21,365 AUD
Taylor and Hart$22,145 AUD

44 data points across 15 retailers

18 retailers$5,989 AUD to $22,145 AUD

A
Cheapest Retailer
-
$5,989 AUD
$4,207 USD
Final sale: no returns
A
Retailer 2
-
$7,650 AUD
$5,374 USD
View
A
Retailer 3
-
$8,199 AUD
£4,535 GBP
View
Retailer 4
-
$8,208 AUD
$5,766 USD
View
Price last confirmed 33 days ago
A
Retailer 5
-
$8,698 AUD
$6,110 USD
View
Retailer 6
-
$8,960 AUD
$6,294 USD
View
Price last confirmed 33 days ago
A
Retailer 7
-
$9,061 AUD
$6,365 USD
View
A
Retailer 8
-
$9,589 AUD
£5,304 GBP
View
A
Retailer 9
-
$11,261 AUD
$7,910 USD
View
A
Retailer 10
-
$13,357 AUD
£7,388 GBP
View
Retailer 11
-
$13,480 AUD
View
Price last confirmed 9 days ago
A
Retailer 12
-
$14,399 AUD
€9,633 EUR
View
A
Retailer 13
-
$15,075 AUD
$10,589 USD
View
A
Retailer 14
-
$15,782 AUD
$11,086 USD
View
A
Retailer 15
-
$16,428 AUD
$11,540 USD
View
B+
Retailer 16
-
$21,329 AUD
SGD 20,247 SGD
View
Retailer 17
-
$21,365 AUD
View
Most Expensive
B+
Taylor and Hart
IB45CX1 · Oct 31
$22,145 AUD
$15,556 USD
View
17 more retailers have this diamond
Prices start from $5,989 AUDSave up to $16,156 AUD

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
$5,989 AUD