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Princess|Lab Grown|IGI

4.12ct D FL Princess Lab Grown Diamond

ID • D/FL • IGI LG628448135

Shape and cutting style on the report: Princess cut

Certificate IGI LG628448135

Diamond specifications and retailer prices

From £3,503 GBP
$4,693 USD
As of October 30, 2026
Save £20,596 GBP (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £24,099 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 4.12ct lab-grown princess diamond

This 4.12ct 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 LG628448135 or 628448135. Listed at 15 retailers as of October 30, 2026, with prices from £3,503 to £24,099, a £20,596 spread on the same certified stone. Do Amore Diamonds lists it at £24,099. 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

4.12
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628448135
Dimensions8.76 × 8.68 × 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
8.76 mm8.68 mm4.12 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628448135
Side View
Table 62.0%Crown 40°Girdle: STK-THKPavilion 35.1°Culet: NoneDepth 69.6%

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: £24,099 GBP|Low: £3,503 GBP|High: £32,324 GBP|Avg: £9,168 GBP|-25.4%
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
Retailer 15
October 30, 2026
Retailer 9£3,503 GBP
Retailer 10£3,541 GBP
Retailer 2£3,744 GBP
Retailer 6£4,069 GBP
Retailer 11£4,131 GBP
Retailer 15£5,324 GBP
Retailer 5£5,647 GBP
Retailer 7£6,102 GBP
Retailer 4£6,959 GBP
Retailer 3£7,008 GBP
Retailer 12£7,799 GBP
Retailer 13£9,174 GBP
Retailer 8£10,008 GBP
Retailer 14£11,219 GBP
Do Amore Diamonds£24,099 GBP

34 data points across 15 retailers

15 retailers£3,503 GBP to £24,099 GBP

A
Cheapest Retailer
-
£3,503 GBP
$4,693 USD
A
Retailer 2
-
£3,541 GBP
$4,744 USD
View
A
Retailer 3
-
£3,744 GBP
$5,016 USD
View
A
Retailer 4
-
£4,069 GBP
$5,452 USD
View
A
Retailer 5
-
£4,131 GBP
$5,535 USD
View
A
Retailer 6
-
£5,324 GBP
$7,133 USD
View
A
Retailer 7
-
£5,647 GBP
$7,567 USD
View
A
Retailer 8
-
£6,102 GBP
$8,176 USD
View
Final sale: no returns
A
Retailer 9
-
£6,959 GBP
$9,324 USD
View
A
Retailer 10
-
£7,008 GBP
$9,390 USD
View
A
Retailer 11
-
£7,799 GBP
€9,952 EUR
View
B+
Retailer 12
-
£9,174 GBP
View
B+
Retailer 13
-
£10,008 GBP
$13,410 USD
View
B+
Retailer 14
-
£11,219 GBP
$15,032 USD
View
Most Expensive
B
Do Amore Diamonds
27-69392A5DB · Oct 30
£24,099 GBP
$32,290 USD
View
14 more retailers have this diamond
Prices start from £3,503 GBPSave up to £20,596 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
4.12ct Princess
£3,503 GBP