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Princess|Lab Grown|IGI

4.05ct D FL Princess Lab Grown Diamond

ID • D/FL • IGI LG816608303

Shape and cutting style on the report: Princess cut

Certificate IGI LG816608303

Diamond specifications and retailer prices

From $8,503 AUD
$5,980 USD
As of October 27, 2026
Save $21,727 AUD (72%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $30,230 AUD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 4.05ct lab-grown princess diamond

This 4.05ct lab-grown princess 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 LG816608303 or 816608303. Listed at 13 retailers as of October 27, 2026, with prices from $8,503 to $30,230, a $21,727 spread on the same certified stone. Brilliant Earth lists it at $30,230. 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

4.05
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.8°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816608303
Dimensions8.71 × 8.58 × 6.31 mm
L/W Ratio1.02
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
8.71 mm8.58 mm4.05 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816608303
Side View
Table 64.0%Crown 42.8°Girdle: Slightly ThickPavilion 37.8°Culet: NoneDepth 73.5%

Caratlytics Score

How it works →
A+
Exceptional
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 27
Current: $30,230 AUD|Low: $8,503 AUD|High: $60,559 AUD|Avg: $21,038 AUD|-17.3%
Brilliant Earth
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
October 29, 2026
Retailer 12$8,503 AUD
Retailer 4$8,911 AUD
Retailer 5$8,922 AUD
Retailer 2$9,548 AUD
Retailer 9$9,840 AUD
Retailer 14$11,934 AUD
Retailer 10$12,516 AUD
Retailer 11$13,764 AUD
Retailer 13$15,223 AUD
Retailer 7$18,485 AUD
Retailer 8$21,189 AUD
Brilliant Earth$30,230 AUD
Retailer 6$31,905 AUD
Retailer 3$58,497 AUD

29 data points across 14 retailers

13 retailers$8,503 AUD to $30,230 AUD

A+
Cheapest Retailer
-
$8,503 AUD
$5,980 USD
A
Retailer 2
-
$8,911 AUD
$6,267 USD
View
A
Retailer 3
-
$8,922 AUD
$6,275 USD
View
A
Retailer 4
-
$9,548 AUD
$6,715 USD
View
A
Retailer 5
-
$9,840 AUD
$6,920 USD
View
A
Retailer 6
-
$11,934 AUD
$8,393 USD
View
A
Retailer 7
-
$12,516 AUD
$8,802 USD
View
A
Retailer 8
-
$13,764 AUD
$9,680 USD
View
B+
Retailer 9
-
$15,223 AUD
$10,706 USD
View
B+
Retailer 10
-
$18,485 AUD
€12,381 EUR
View
B+
Retailer 11
-
$21,189 AUD
£11,734 GBP
View
Most Expensive
B
Brilliant Earth
21060532Y · Oct 28
$30,230 AUD
$21,260 USD
View
11 more retailers have this diamond
Prices start from $8,503 AUDSave up to $21,727 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+
4.05ct Princess
$8,503 AUD