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Princess|Lab Grown|IGI

4.00ct D FL Princess Lab Grown Diamond

ID • D/FL • IGI LG780666045

Shape and cutting style on the report: Princess cut

Certificate IGI LG780666045

Diamond specifications and retailer prices

From £3,763 GBP
$5,042 USD
As of October 30, 2026
Save £22,127 GBP (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £25,890 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 4ct lab-grown princess diamond

This 4ct 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 LG780666045 or 780666045. Listed at 14 retailers as of October 30, 2026, with prices from £3,763 to £25,890, a £22,127 spread on the same certified stone. Do Amore Diamonds lists it at £25,890. 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

4.00
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.8°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780666045
Dimensions8.46 × 8.44 × 6.18 mm
L/W Ratio1.00
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
8.46 mm8.44 mm4.00 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780666045
Side View
Table 67.0%Crown 45.8°Girdle: ThickPavilion 37°Culet: NoneDepth 73.2%

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: £25,890 GBP|Low: £3,763 GBP|High: £31,406 GBP|Avg: £9,867 GBP|-17.6%
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 7£3,763 GBP
Retailer 4£3,956 GBP
Retailer 8£4,007 GBP
Retailer 9£4,381 GBP
Retailer 5£5,489 GBP
Retailer 13£5,720 GBP
Retailer 6£5,930 GBP
Retailer 3£6,765 GBP
Retailer 14£6,851 GBP
Retailer 10£8,404 GBP
Retailer 2£9,717 GBP
Retailer 11£9,857 GBP
Retailer 12£12,073 GBP
Do Amore Diamonds£25,890 GBP

31 data points across 14 retailers

14 retailers£3,763 GBP to £25,890 GBP

A
Cheapest Retailer
-
£3,763 GBP
$5,042 USD
A
Retailer 2
-
£3,956 GBP
$5,301 USD
View
A
Retailer 3
-
£4,007 GBP
$5,369 USD
View
A
Retailer 4
-
£4,381 GBP
$5,870 USD
View
A
Retailer 5
-
£5,489 GBP
$7,355 USD
View
A
Retailer 6
-
£5,720 GBP
$7,664 USD
View
A
Retailer 7
-
£5,930 GBP
$7,945 USD
View
Final sale: no returns
A
Retailer 8
-
£6,765 GBP
$9,064 USD
View
A
Retailer 9
-
£6,851 GBP
$9,180 USD
View
B+
Retailer 10
-
£8,404 GBP
€10,724 EUR
View
B+
Retailer 11
-
£9,717 GBP
$13,020 USD
View
B+
Retailer 12
-
£9,857 GBP
View
B+
Retailer 13
-
£12,073 GBP
$16,176 USD
View
Most Expensive
B
Do Amore Diamonds
27-96267DA2A · Oct 30
£25,890 GBP
$34,690 USD
View
13 more retailers have this diamond
Prices start from £3,763 GBPSave up to £22,127 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
4.00ct Princess
£3,763 GBP