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Princess|Lab Grown|IGI

2.91ct D FL Princess Lab Grown Diamond

ID • D/FL • IGI LG846663318

Shape and cutting style on the report: Princess cut

Certificate IGI LG846663318

Diamond specifications and retailer prices

From £2,805 GBP
$3,758 USD
As of October 30, 2026
Save £4,533 GBP (62%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £7,338 GBP at With Clarity · As of October 28, 2026
View at With Clarity

About this 2.91ct lab-grown princess diamond

This 2.91ct lab-grown princess sits in the two to three carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846663318 or 846663318. Listed at 6 retailers as of October 28, 2026, with prices from £2,805 to £7,338, a £4,533 spread on the same certified stone. With Clarity lists it at £7,338. 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

2.91
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663318
Dimensions7.66 × 7.63 × 5.60 mm
L/W Ratio1.00
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
7.66 mm7.63 mm2.91 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663318
Side View
Table 65.0%Crown 44.4°Girdle: ThickPavilion 37.9°Culet: NoneDepth 73.4%

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: £2,805 GBP|Low: £2,805 GBP|High: £8,538 GBP|Avg: £4,579 GBP|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
With Clarity
October 30, 2026
Retailer 1£2,805 GBP
Retailer 5£3,188 GBP
Retailer 4£3,683 GBP
Retailer 2£4,905 GBP
Retailer 3£5,078 GBP
With Clarity£7,338 GBP

5 data points across 6 retailers

6 retailers£2,805 GBP to £7,338 GBP

A
Cheapest Retailer
-
£2,805 GBP
$3,758 USD
A
Retailer 2
-
£3,188 GBP
$4,271 USD
View
B+
Retailer 3
-
£3,683 GBP
€4,700 EUR
View
B+
Retailer 4
-
£4,905 GBP
View
B+
Retailer 5
-
£5,078 GBP
$6,804 USD
View
Most Expensive
B
With Clarity
846663318 · Oct 28
£7,338 GBP
$9,832 USD
View
5 more retailers have this diamond
Prices start from £2,805 GBPSave up to £4,533 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
2.91ct Princess
£2,805 GBP