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 $5,980 USD
As of October 27, 2026
Save $15,280 USD (72%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $21,260 USD 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 $5,980 to $21,260, a $15,280 spread on the same certified stone. Brilliant Earth lists it at $21,260. 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
Color
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

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A+
Exceptional
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 27
Current: $21,260 USD|Low: $5,980 USD|High: $42,590 USD|Avg: $14,795 USD|-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$5,980 USD
Retailer 4$6,267 USD
Retailer 5$6,275 USD
Retailer 2$6,715 USD
Retailer 9$6,920 USD
Retailer 14$8,393 USD
Retailer 10$8,802 USD
Retailer 11$9,680 USD
Retailer 13$10,706 USD
Retailer 7$13,000 USD
Retailer 8$14,902 USD
Brilliant Earth$21,260 USD
Retailer 6$22,438 USD
Retailer 3$41,140 USD

29 data points across 14 retailers

13 retailers$5,980 USD to $21,260 USD

A+
Cheapest Retailer
-
$5,980 USD
A
Retailer 2
-
$6,267 USD
View
A
Retailer 3
-
$6,275 USD
View
A
Retailer 4
-
$6,715 USD
View
A
Retailer 5
-
$6,920 USD
View
A
Retailer 6
-
$8,393 USD
View
A
Retailer 7
-
$8,802 USD
View
A
Retailer 8
-
$9,680 USD
View
B+
Retailer 9
-
$10,706 USD
View
B+
Retailer 10
-
$13,000 USD
€12,381 EUR
View
B+
Retailer 11
-
$14,902 USD
£11,734 GBP
View
Most Expensive
B
Brilliant Earth
21060532Y · Oct 28
$21,260 USD
View
11 more retailers have this diamond
Prices start from $5,980 USDSave up to $15,280 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+
4.05ct Princess
$5,980 USD