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Princess|Lab Grown|IGI

10.78ct F VS1 Princess Lab Grown Diamond

EX • F/VS1 • IGI LG826654510

Shape and cutting style on the report: Princess cut

Certificate IGI LG826654510

Diamond specifications and retailer prices

From £1,846 GBP
$2,474 USD
As of October 31, 2026
Save £2,679 GBP (59%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £4,526 GBP at Brilliance · As of November 1, 2026
View at Brilliance

About this 10.78ct lab-grown princess diamond

This 10.78ct lab-grown princess sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG826654510 or 826654510. Listed at 3 retailers as of October 31, 2026, with prices from £1,846 to £4,526, a £2,679 spread on the same certified stone. Brilliance lists it at £4,526. 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

10.78
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.7°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826654510
Dimensions12.44 × 12.23 × 8.17 mm
L/W Ratio1.02
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.44 mm12.23 mm10.78 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826654510
Side View
Table 70.0%Crown 39.7°Girdle: MediumPavilion 37.4°Culet: NoneDepth 66.8%

Caratlytics Score

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

Last verified: Oct 31
Current: £4,526 GBP|Low: £1,846 GBP|High: £5,421 GBP|Avg: £3,452 GBP|-16.5%
Brilliance
Retailer 2
Retailer 3
October 27, 2026
Retailer 2£1,846 GBP
Retailer 3£2,446 GBP
Brilliance£4,526 GBP

11 data points across 3 retailers

3 retailers£1,846 GBP to £4,526 GBP

A
Cheapest Retailer
-
£1,846 GBP
$2,474 USD
Final sale: no returns
A
Retailer 2
-
£2,446 GBP
$3,277 USD
View
Most Expensive
B+
Brilliance
D44945828 · Nov 1
£4,526 GBP
$6,064 USD
View
2 more retailers have this diamond
Prices start from £1,846 GBPSave up to £2,679 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
10.78ct Princess
£1,846 GBP