Princess|Lab Grown|IGI

4.26ct G VS1 Princess Lab Grown Diamond

ID • G/VS1 • IGI LG621476854

Shape and cutting style on the report: Princess cut

Certificate IGI LG621476854

Diamond specifications and retailer prices

From £414 GBP
$555 USD
As of October 30, 2026
Save £2,840 GBP (87%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £3,254 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.26ct lab-grown princess diamond

This 4.26ct lab-grown princess sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG621476854 or 621476854. Listed at 24 retailers as of October 30, 2026, with prices from £414 to £3,254, a £2,840 spread on the same certified stone. Brilliant Earth lists it at £3,254. 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

4.26
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.8°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621476854
Dimensions8.71 × 8.60 × 6.26 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.71 mm8.60 mm4.26 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621476854
Side View
Table 73.0%Crown 50.8°Girdle: MediumPavilion 38.2°Culet: NoneDepth 72.8%

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: £3,254 GBP|Low: £398 GBP|High: £3,508 GBP|Avg: £1,081 GBP|-5.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 31, 2026
Retailer 3£414 GBP
Retailer 6£464 GBP
Retailer 10£464 GBP
Retailer 11£488 GBP
Retailer 7£514 GBP
Retailer 9£514 GBP
Retailer 17£612 GBP
Retailer 16£688 GBP
Retailer 14£750 GBP
Retailer 13£801 GBP
Retailer 15£1,023 GBP
Retailer 12£1,029 GBP
Retailer 2£1,087 GBP
Retailer 8£1,352 GBP
Retailer 5£1,655 GBP
Retailer 4£1,656 GBP
Retailer 18£2,234 GBP
Brilliant Earth£3,254 GBP

39 data points across 18 retailers

24 retailers£414 GBP to £3,254 GBP

A
Cheapest Retailer
-
£414 GBP
$555 USD
A
Retailer 2
-
£464 GBP
$622 USD
View
A
Retailer 3
-
£464 GBP
$622 USD
View
Final sale: no returns
A
Retailer 4
-
£488 GBP
View
A
Retailer 5
-
£514 GBP
$689 USD
View
Retailer 6
-
£514 GBP
$689 USD
View
Price last confirmed 15 days ago
A
Retailer 7
-
£612 GBP
$820 USD
View
B+
Retailer 8
-
£688 GBP
$922 USD
View
A
Retailer 9
-
£750 GBP
€957 EUR
View
A
Retailer 10
-
£801 GBP
View
A
Retailer 11
-
£813 GBP
$1,089 USD
View
A
Retailer 12
-
£1,023 GBP
ZAR 22,135 ZAR
View
A
Retailer 13
-
£1,029 GBP
A$2,122 AUD
View
A
Retailer 14
-
£1,087 GBP
$1,456 USD
View
B+
Retailer 15
-
£1,147 GBP
$1,537 USD
View
B+
Retailer 16
-
£1,155 GBP
$1,547 USD
View
B+
Retailer 17
-
£1,352 GBP
$1,811 USD
View
B+
Retailer 18
-
£1,501 GBP
View
B+
Retailer 19
-
£1,655 GBP
$2,217 USD
View
B+
Retailer 20
-
£1,656 GBP
$2,219 USD
View
B+
Retailer 21
-
£1,667 GBP
$2,233 USD
View
B
Retailer 22
-
£2,234 GBP
View
B
Retailer 23
-
£2,258 GBP
$3,026 USD
View
Most Expensive
B
Brilliant Earth
10794930A · Oct 30
£3,254 GBP
$4,360 USD
View
23 more retailers have this diamond
Prices start from £414 GBPSave up to £2,840 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
4.26ct Princess
£414 GBP