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Marquise|Lab Grown|IGI

4.09ct D IF Marquise Lab Grown Diamond

VG • D/IF • IGI LG762544941

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG762544941

Diamond specifications and retailer prices

From $15,297 AUD
$10,745 USD
As of November 1, 2026
Save $42,157 AUD (73%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $57,454 AUD at Cape Diamonds · As of October 29, 2026
View at Cape Diamonds

About this 4.09ct lab-grown marquise diamond

This 4.09ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG762544941 or 762544941. Listed at 13 retailers as of October 29, 2026, with prices from $15,297 to $57,454, a $42,157 spread on the same certified stone. Cape Diamonds lists it at $57,454. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.09
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762544941
Dimensions16.67 × 8.18 × 5.13 mm
L/W Ratio2.04
Girdle conditionFaceted
Culet sizePointed
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
16.67 mm8.18 mm4.09 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762544941
Side View
Table 58.0%Crown 35.4°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 62.7%

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: Nov 1
Current: $57,454 AUD|Low: $13,624 AUD|High: $75,320 AUD|Avg: $37,081 AUD|-10.8%
Cape Diamonds
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
November 2, 2026
Retailer 11$15,297 AUD
Retailer 5$18,007 AUD
Retailer 6$18,660 AUD
Retailer 14$20,678 AUD
Retailer 12$24,198 AUD
Retailer 10$29,483 AUD
Retailer 2$29,792 AUD
Retailer 7$42,397 AUD
Retailer 13$44,186 AUD
Retailer 4$45,886 AUD
Retailer 9$45,942 AUD
Retailer 8$46,741 AUD
Cape Diamonds$57,454 AUD
Retailer 3$75,320 AUD

28 data points across 14 retailers

13 retailers$15,297 AUD to $57,454 AUD

A
Cheapest Retailer
-
$15,297 AUD
$10,745 USD
B+
Retailer 2
-
$18,007 AUD
$12,649 USD
View
B+
Retailer 3
-
$20,678 AUD
$14,525 USD
View
B+
Retailer 4
-
$24,198 AUD
$16,998 USD
View
B
Retailer 5
-
$29,483 AUD
$20,710 USD
View
B
Retailer 6
-
$29,792 AUD
£16,478 GBP
View
B
Retailer 7
-
$42,397 AUD
£23,450 GBP
View
B
Retailer 8
-
$44,186 AUD
$31,038 USD
View
B
Retailer 9
-
$45,942 AUD
€30,735 EUR
View
B
Retailer 10
-
$46,741 AUD
View
Most Expensive
B
Cape Diamonds
cert_762544941 · Oct 29
$57,454 AUD
ZAR 651,988 ZAR
View
10 more retailers have this diamond
Prices start from $15,297 AUDSave up to $42,157 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
$15,297 AUD