CaratHunter
Plans
Princess|Lab Grown|IGI

3.40ct D IF Princess Lab Grown Diamond

VG • D/IF • IGI LG811642759

Shape and cutting style on the report: Princess cut

Certificate IGI LG811642759

Diamond specifications and retailer prices

From £2,816 GBP
$3,773 USD
As of October 29, 2026
Save £7,901 GBP (74%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £10,717 GBP at With Clarity · As of October 30, 2026
View at With Clarity

About this 3.4ct lab-grown princess diamond

This 3.4ct lab-grown princess sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG811642759 or 811642759. Listed at 9 retailers as of October 29, 2026, with prices from £2,816 to £10,717, a £7,901 spread on the same certified stone. With Clarity lists it at £10,717. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.40
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.7°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811642759
Dimensions8.14 × 7.91 × 5.88 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
8.14 mm7.91 mm3.40 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811642759
Side View
Table 64.0%Crown 44.7°Girdle: MED-STKPavilion 37.4°Culet: NoneDepth 74.3%

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 29
Current: £3,848 GBP|Low: £2,816 GBP|High: £10,717 GBP|Avg: £6,079 GBP|-2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
October 29, 2026
Retailer 4£2,816 GBP
Retailer 5£3,186 GBP
Retailer 1£3,848 GBP
Retailer 7£4,499 GBP
Retailer 2£4,643 GBP
Retailer 8£6,915 GBP
Retailer 3£7,378 GBP
Retailer 6£10,154 GBP
With Clarity£10,717 GBP

11 data points across 9 retailers

9 retailers£2,816 GBP to £10,717 GBP

A
Cheapest Retailer
-
£2,816 GBP
$3,773 USD
A
Retailer 2
-
£3,186 GBP
$4,269 USD
View
A
Retailer 3
-
£3,848 GBP
View
B+
Retailer 4
-
£4,499 GBP
$6,028 USD
View
B+
Retailer 5
-
£4,643 GBP
€5,925 EUR
View
B
Retailer 6
-
£6,915 GBP
$9,266 USD
View
B
Retailer 7
-
£7,378 GBP
View
B
Retailer 8
-
£10,154 GBP
$13,605 USD
View
Most Expensive
B
With Clarity
811642759 · Oct 30
£10,717 GBP
$14,360 USD
View
8 more retailers have this diamond
Prices start from £2,816 GBPSave up to £7,901 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
3.40ct Princess
£2,816 GBP