CaratHunter
Plans
Princess|Lab Grown|IGI

4.03ct D FL Princess Lab Grown Diamond

ID • D/FL • IGI LG800684593

Shape and cutting style on the report: Princess cut

Certificate IGI LG800684593

Diamond specifications and retailer prices

From £4,470 GBP
$5,952 USD
As of October 27, 2026
Save £11,420 GBP (72%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £15,890 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.03ct lab-grown princess diamond

This 4.03ct 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 LG800684593 or 800684593. Listed at 15 retailers as of October 27, 2026, with prices from £4,470 to £15,890, a £11,420 spread on the same certified stone. Brilliant Earth lists it at £15,890. 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

4.03
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.9°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800684593
Dimensions8.86 × 8.58 × 6.04 mm
L/W Ratio1.03
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
8.86 mm8.58 mm4.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800684593
Side View
Table 65.0%Crown 40.9°Girdle: MED-STKPavilion 37.1°Culet: NoneDepth 70.4%

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: £15,890 GBP|Low: £4,470 GBP|High: £31,832 GBP|Avg: £9,712 GBP|-3.0%
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
Retailer 15
October 29, 2026
Retailer 13£4,470 GBP
Retailer 15£4,648 GBP
Retailer 5£4,684 GBP
Retailer 6£4,688 GBP
Retailer 2£5,020 GBP
Retailer 7£6,009 GBP
Retailer 3£6,273 GBP
Retailer 11£6,578 GBP
Retailer 12£7,250 GBP
Retailer 14£8,001 GBP
Retailer 8£9,714 GBP
Retailer 9£11,137 GBP
Retailer 10£13,918 GBP
Brilliant Earth£15,890 GBP
Retailer 4£30,751 GBP

31 data points across 15 retailers

15 retailers£4,470 GBP to £15,890 GBP

A+
Cheapest Retailer
-
£4,470 GBP
$5,952 USD
A+
Retailer 2
-
£4,648 GBP
$6,189 USD
View
A
Retailer 3
-
£4,684 GBP
$6,237 USD
View
A
Retailer 4
-
£4,688 GBP
$6,243 USD
View
A
Retailer 5
-
£5,020 GBP
$6,685 USD
View
A
Retailer 6
-
£6,009 GBP
$8,002 USD
View
Final sale: no returns
A
Retailer 7
-
£6,273 GBP
$8,353 USD
View
A
Retailer 8
-
£6,578 GBP
$8,760 USD
View
A
Retailer 9
-
£7,250 GBP
$9,655 USD
View
B+
Retailer 10
-
£8,001 GBP
$10,655 USD
View
B+
Retailer 11
-
£9,714 GBP
€12,320 EUR
View
B+
Retailer 12
-
£11,137 GBP
View
B+
Retailer 13
-
£13,918 GBP
$18,534 USD
View
Most Expensive
B
Brilliant Earth
20496213Y · Oct 29
£15,890 GBP
$21,160 USD
View
13 more retailers have this diamond
Prices start from £4,470 GBPSave up to £11,420 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+
4.03ct Princess
£4,470 GBP