Princess|Lab Grown|IGI

4.20ct G VS1 Princess Lab Grown Diamond

ID • G/VS1 • IGI LG563228826

Shape and cutting style on the report: Princess cut

Certificate IGI LG563228826

Diamond specifications and retailer prices

From £549 GBP
$735 USD
As of October 31, 2026
Save £3,810 GBP (87%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £5,239 GBP at Brilliant Earth · As of October 1, 2026
View at Brilliant Earth

About this 4.2ct lab-grown princess diamond

This 4.2ct 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 LG563228826 or 563228826. Listed at 25 retailers as of October 29, 2026, with a 695% 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

4.20
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG563228826
Dimensions8.89 × 8.82 × 6.14 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
8.89 mm8.82 mm4.20 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG563228826
Side View
Table 67.0%Crown 41.6°Girdle: STK-THKPavilion 38.4°Culet: NoneDepth 69.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £1,221 GBP|Low: £549 GBP|High: £5,493 GBP|Avg: £1,914 GBP|+21.6%
Retailer 1
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 4£549 GBP
Retailer 15£637 GBP
Retailer 6£804 GBP
Retailer 11£806 GBP
Retailer 7£891 GBP
Retailer 1£1,221 GBP
Retailer 13£1,346 GBP
Retailer 12£1,453 GBP
Retailer 16£1,687 GBP
Retailer 10£1,898 GBP
Retailer 14£1,940 GBP
Retailer 5£2,184 GBP
Retailer 3£2,248 GBP
Retailer 2£2,621 GBP
Retailer 17£2,702 GBP
Retailer 8£2,813 GBP
Retailer 9£3,109 GBP
Retailer 18£4,359 GBP

38 data points across 18 retailers

25 retailers£549 GBP to £4,359 GBP

Retailer 1
-
£499 GBP
$669 USD
Price last confirmed 12 days ago
Retailer 2
-
£543 GBP
$727 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
£549 GBP
$735 USD
View
Final sale: no returns
Retailer 4
-
£579 GBP
$776 USD
View
Price last confirmed 13 days ago
Retailer 5
-
£579 GBP
$776 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
£637 GBP
View
B+
Retailer 7
-
£804 GBP
$1,077 USD
View
A
Retailer 8
-
£806 GBP
$1,080 USD
View
A
Retailer 9
-
£891 GBP
$1,194 USD
View
B+
Retailer 10
-
£1,221 GBP
View
B+
Retailer 11
-
£1,346 GBP
A$2,774 AUD
View
B+
Retailer 12
-
£1,453 GBP
$1,947 USD
View
B+
Retailer 13
-
£1,687 GBP
ZAR 36,516 ZAR
View
Retailer 14
-
£1,796 GBP
$2,407 USD
View
Price last confirmed 15 days ago
Retailer 15
-
£1,898 GBP
$2,544 USD
View
Price last confirmed 12 days ago
B
Retailer 16
-
£1,920 GBP
CA$3,573 CAD
View
B
Retailer 17
-
£1,940 GBP
$2,599 USD
View
Retailer 18
-
£2,184 GBP
View
Price last confirmed 9 days ago
B
Retailer 19
-
£2,248 GBP
$3,012 USD
View
B
Retailer 20
-
£2,359 GBP
$3,161 USD
View
B
Retailer 21
-
£2,702 GBP
View
B
Retailer 22
-
£2,813 GBP
SGD 5,093 SGD
View
B
Retailer 23
-
£3,109 GBP
$4,166 USD
View
B
Retailer 24
-
£4,359 GBP
$5,840 USD
View
Most Expensive
Brilliant Earth
15669777Y · Oct 1
£5,239 GBP
$7,020 USD
View
Price last confirmed 30 days ago
24 more retailers have this diamond
Prices start from £549 GBPSave up to £3,810 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
4.20ct Princess
£549 GBP