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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 £4,322 GBP
$5,791 USD
As of October 30, 2026
Save £25,412 GBP (85%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £29,734 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

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 30, 2026, with prices from £4,322 to £29,734, a £25,412 spread on the same certified stone. Do Amore Diamonds lists it at £29,734. 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

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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 30
Current: £29,734 GBP|Low: £4,322 GBP|High: £31,786 GBP|Avg: £10,986 GBP|-6.5%
Do Amore 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
October 30, 2026
Retailer 2£4,322 GBP
Retailer 7£4,535 GBP
Retailer 4£4,677 GBP
Retailer 8£5,012 GBP
Retailer 11£5,165 GBP
Retailer 3£6,264 GBP
Retailer 12£6,569 GBP
Retailer 13£7,224 GBP
Retailer 14£7,990 GBP
Retailer 9£9,702 GBP
Retailer 10£11,122 GBP
Retailer 5£15,867 GBP
Retailer 6£16,746 GBP
Do Amore Diamonds£29,734 GBP

30 data points across 14 retailers

13 retailers£4,322 GBP to £29,734 GBP

A+
Cheapest Retailer
-
£4,322 GBP
$5,791 USD
A
Retailer 2
-
£4,535 GBP
$6,077 USD
View
A
Retailer 3
-
£4,648 GBP
$6,228 USD
View
A
Retailer 4
-
£4,677 GBP
$6,267 USD
View
A
Retailer 5
-
£5,012 GBP
$6,715 USD
View
A
Retailer 6
-
£6,264 GBP
$8,393 USD
View
A
Retailer 7
-
£6,569 GBP
$8,802 USD
View
A
Retailer 8
-
£7,224 GBP
$9,680 USD
View
B+
Retailer 9
-
£7,990 GBP
$10,706 USD
View
B+
Retailer 10
-
£9,702 GBP
€12,381 EUR
View
B+
Retailer 11
-
£11,122 GBP
View
B
Retailer 12
-
£15,867 GBP
$21,260 USD
View
Most Expensive
B
Do Amore Diamonds
27-37B53CE18 · Oct 30
£29,734 GBP
$39,840 USD
View
12 more retailers have this diamond
Prices start from £4,322 GBPSave up to £25,412 GBP

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
£4,322 GBP