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Princess|Lab Grown|IGI

10.40ct E VVS2 Princess Lab Grown Diamond

EX • E/VVS2 • IGI LG823695579

Shape and cutting style on the report: Princess cut

Certificate IGI LG823695579

Diamond specifications and retailer prices

From £2,626 GBP
$3,518 USD
As of October 31, 2026
Save £984 GBP (27%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £5,124 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 10.4ct lab-grown princess diamond

This 10.4ct lab-grown princess sits in the over five carat band, graded E colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG823695579 or 823695579. Listed at 3 retailers as of October 30, 2026, with a 37% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

10.40
Carat
E
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823695579
Dimensions12.13 × 11.97 × 8.18 mm
L/W Ratio1.01
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.13 mm11.97 mm10.40 ctE / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823695579
Side View
Table 68.0%Crown 39.6°Girdle: MediumPavilion 37.7°Culet: NoneDepth 68.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £5,124 GBP|Low: £2,626 GBP|High: £5,236 GBP|Avg: £4,209 GBP|-2.1%
Rare Carat
Retailer 2
Retailer 3
October 30, 2026
Retailer 3£2,626 GBP
Retailer 2£3,610 GBP
Rare Carat£5,124 GBP

38 data points across 3 retailers

3 retailers£2,626 GBP to £3,610 GBP

A
Cheapest Retailer
-
£2,626 GBP
$3,518 USD
Final sale: no returns
A
Retailer 2
-
£3,610 GBP
View
Most Expensive
Rare Carat
823695579 · Oct 21
£5,124 GBP
$6,865 USD
View
Price last confirmed 10 days ago
2 more retailers have this diamond
Prices start from £2,626 GBPSave up to £984 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
10.40ct Princess
£2,626 GBP