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Princess|Lab Grown|IGI

4.09ct D FL Princess Lab Grown Diamond

EX • D/FL • IGI LG790611920

Shape and cutting style on the report: Princess cut

Certificate IGI LG790611920

Diamond specifications and retailer prices

From £4,764 GBP
$6,383 USD
As of October 31, 2026
Save £19,320 GBP (80%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £24,083 GBP at Michael Trio · As of October 31, 2026
View at Michael Trio

About this 4.09ct lab-grown princess diamond

This 4.09ct 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 LG790611920 or 790611920. Listed at 21 retailers as of October 31, 2026, with prices from £4,764 to £24,083, a £19,320 spread on the same certified stone. Michael Trio lists it at £24,083. 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

4.09
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.8°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790611920
Dimensions8.89 × 8.78 × 6.04 mm
L/W Ratio1.01
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
8.89 mm8.78 mm4.09 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790611920
Side View
Table 67.0%Crown 41.8°Girdle: ThinPavilion 37.7°Culet: NoneDepth 68.8%

Caratlytics Score

How it works →
A
Excellent
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 31
Current: £24,083 GBP|Low: £4,258 GBP|High: £33,219 GBP|Avg: £11,467 GBP
Michael Trio
Retailer 2
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Retailer 21
October 31, 2026
Retailer 6£4,764 GBP
Retailer 19£5,324 GBP
Retailer 5£5,484 GBP
Retailer 7£5,962 GBP
Retailer 18£6,142 GBP
Retailer 4£6,176 GBP
Retailer 20£6,176 GBP
Retailer 17£6,983 GBP
Retailer 10£7,069 GBP
Retailer 21£7,155 GBP
Retailer 16£7,666 GBP
Retailer 2£8,338 GBP
Retailer 11£9,770 GBP
Retailer 12£11,004 GBP
Retailer 15£12,723 GBP
Retailer 13£14,510 GBP
Retailer 3£15,815 GBP
Retailer 9£16,997 GBP
Retailer 14£22,296 GBP
Michael Trio£24,083 GBP
Retailer 8£33,219 GBP

36 data points across 21 retailers

21 retailers£4,764 GBP to £24,083 GBP

A
Cheapest Retailer
-
£4,764 GBP
$6,383 USD
A
Retailer 2
-
£5,324 GBP
$7,134 USD
View
A
Retailer 3
-
£5,484 GBP
$7,348 USD
View
A
Retailer 4
-
£5,537 GBP
$7,419 USD
View
A
Retailer 5
-
£5,962 GBP
$7,988 USD
View
Final sale: no returns
A
Retailer 6
-
£6,142 GBP
$8,230 USD
View
Retailer 7
-
£6,176 GBP
$8,275 USD
View
Price last confirmed 14 days ago
A
Retailer 8
-
£6,176 GBP
$8,275 USD
View
A
Retailer 9
-
£6,983 GBP
$9,356 USD
View
A
Retailer 10
-
£7,069 GBP
HK$74,000 HKD
View
A
Retailer 11
-
£7,155 GBP
$9,587 USD
View
A
Retailer 12
-
£7,666 GBP
$10,272 USD
View
A
Retailer 13
-
£8,338 GBP
View
B+
Retailer 14
-
£9,770 GBP
View
B+
Retailer 15
-
£12,723 GBP
View
B+
Retailer 16
-
£14,510 GBP
ZAR 314,083 ZAR
View
B
Retailer 17
-
£15,815 GBP
$21,191 USD
View
B
Retailer 18
-
£16,997 GBP
$22,774 USD
View
B
Retailer 19
-
£22,296 GBP
$29,874 USD
View
Most Expensive
B
Michael Trio
2019427377 · Oct 31
£24,083 GBP
SGD 43,607 SGD
View
19 more retailers have this diamond
Prices start from £4,764 GBPSave up to £19,320 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
4.09ct Princess
£4,764 GBP