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Marquise|Lab Grown|IGI

4.03ct D FL Marquise Lab Grown Diamond

ID • D/FL

Diamond specifications and retailer prices

From $12,810 AUD
$8,998 USD
As of October 30, 2026
Save $14,471 AUD (53%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $27,280 AUD at Blue Nile · As of October 31, 2026
View at Blue Nile

About this 4.03ct lab-grown marquise diamond

This 4.03ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI. Listed at 7 retailers as of October 30, 2026, with prices from $12,810 to $27,280, a $14,471 spread on the same certified stone. Blue Nile lists it at $27,280. 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

4.03
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions16.18 × 8.39 × 5.24 mm
L/W Ratio1.93
Top View
16.18 mm8.39 mm4.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 60.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.5%

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 30
Current: $27,280 AUD|Low: $12,810 AUD|High: $115,589 AUD|Avg: $29,074 AUD|+57.9%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 4$12,810 AUD
Retailer 2$13,322 AUD
Retailer 3$14,860 AUD
Retailer 6$14,860 AUD
Retailer 5$15,372 AUD
Retailer 7$16,293 AUD
Blue Nile$27,280 AUD
Retailer 8$115,589 AUD

9 data points across 8 retailers

7 retailers$12,810 AUD to $27,280 AUD

A
Cheapest Retailer
-
$12,810 AUD
$8,998 USD
A
Retailer 2
-
$13,322 AUD
$9,358 USD
View
Retailer 3
-
$14,860 AUD
$10,438 USD
View
Price last confirmed 16 days ago
A
Retailer 4
-
$14,860 AUD
$10,438 USD
View
A
Retailer 5
-
$15,372 AUD
$10,798 USD
View
Retailer 6
-
$16,293 AUD
$11,445 USD
View
Price last confirmed 19 days ago
Most Expensive
B
Blue Nile
28770757 · Oct 31
$27,280 AUD
$19,163 USD
View
6 more retailers have this diamond
Prices start from $12,810 AUDSave up to $14,471 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
4.03ct Marquise
$12,810 AUD