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Princess|Lab Grown|IGI

12.46ct E VS1 Princess Lab Grown Diamond

EX • E/VS1 • IGI LG830642677

Shape and cutting style on the report: Princess cut

Certificate IGI LG830642677

Diamond specifications and retailer prices

From £2,545 GBP
$3,410 USD
As of October 31, 2026
Save £964 GBP (27%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £3,509 GBP at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

About this 12.46ct lab-grown princess diamond

This 12.46ct lab-grown princess sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG830642677 or 830642677. Listed at 2 retailers as of October 30, 2026, with prices from £2,545 to £3,509, a £964 spread on the same certified stone. 77 Diamonds lists it at £3,509. 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

12.46
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830642677
Dimensions13.06 × 12.75 × 8.62 mm
L/W Ratio1.02
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.06 mm12.75 mm12.46 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830642677
Side View
Table 71.0%Crown 39.5°Girdle: MediumPavilion 37.4°Culet: NoneDepth 67.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £3,509 GBP|Low: £2,545 GBP|High: £3,925 GBP|Avg: £3,539 GBP|-8.9%
77 Diamonds
Retailer 2
October 30, 2026
Retailer 2£2,545 GBP
77 Diamonds£3,509 GBP

37 data points across 2 retailers

2 retailers£2,545 GBP to £3,509 GBP

A
Cheapest Retailer
-
£2,545 GBP
$3,410 USD
Final sale: no returns
Most Expensive
A
77 Diamonds
PRITVS7RHXAYTU · Oct 30
£3,509 GBP
View
1 more retailer has this diamond
Prices start from £2,545 GBPSave up to £964 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
12.46ct Princess
£2,545 GBP