Princess|Lab Grown|IGI

1.28ct E VS1 Princess Lab Grown Diamond

ID • E/VS1 • IGI LG633413725

Shape and cutting style on the report: Princess cut

Certificate IGI LG633413725

Diamond specifications and retailer prices

From £177 GBP
$237 USD
As of October 30, 2026
Save £816 GBP (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £993 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.28ct lab-grown princess diamond

This 1.28ct lab-grown princess sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG633413725 or 633413725. Listed at 21 retailers as of October 28, 2026, with prices from £177 to £993, a £816 spread on the same certified stone. Brilliant Earth lists it at £993. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.8°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG633413725
Dimensions5.92 × 5.86 × 4.23 mm
L/W Ratio1.01
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
5.92 mm5.86 mm1.28 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG633413725
Side View
Table 69.0%Crown 30.8°Girdle: MediumPavilion 38.7°Culet: NoneDepth 72.2%

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 30
Current: £993 GBP|Low: £149 GBP|High: £993 GBP|Avg: £456 GBP
Brilliant Earth
Retailer 2
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Retailer 21
October 31, 2026
Retailer 4£177 GBP
Retailer 8£198 GBP
Retailer 18£205 GBP
Retailer 5£219 GBP
Retailer 20£219 GBP
Retailer 21£277 GBP
Retailer 13£337 GBP
Retailer 12£369 GBP
Retailer 9£371 GBP
Retailer 16£377 GBP
Retailer 2£411 GBP
Retailer 6£456 GBP
Retailer 11£530 GBP
Retailer 17£535 GBP
Retailer 14£581 GBP
Retailer 3£705 GBP
Retailer 19£708 GBP
Retailer 7£744 GBP
Retailer 15£883 GBP
Retailer 10£979 GBP
Brilliant Earth£993 GBP

41 data points across 21 retailers

21 retailers£177 GBP to £993 GBP

A
Cheapest Retailer
-
£177 GBP
$237 USD
A
Retailer 2
-
£198 GBP
$265 USD
View
Final sale: no returns
A
Retailer 3
-
£205 GBP
$275 USD
View
A
Retailer 4
-
£219 GBP
$294 USD
View
A
Retailer 5
-
£219 GBP
$294 USD
View
Retailer 6
-
£277 GBP
View
Price last confirmed 15 days ago
A
Retailer 7
-
£337 GBP
€430 EUR
View
A
Retailer 8
-
£369 GBP
$494 USD
View
A
Retailer 9
-
£371 GBP
$497 USD
View
A
Retailer 10
-
£377 GBP
ZAR 8,154 ZAR
View
B+
Retailer 11
-
£411 GBP
View
B+
Retailer 12
-
£456 GBP
$611 USD
View
B+
Retailer 13
-
£530 GBP
$710 USD
View
B+
Retailer 14
-
£535 GBP
A$1,102 AUD
View
B+
Retailer 15
-
£581 GBP
$779 USD
View
B
Retailer 16
-
£705 GBP
$944 USD
View
B
Retailer 17
-
£708 GBP
$948 USD
View
B
Retailer 18
-
£744 GBP
$996 USD
View
B
Retailer 19
-
£883 GBP
View
B
Retailer 20
-
£979 GBP
$1,311 USD
View
Most Expensive
B
Brilliant Earth
10242914A · Oct 28
£993 GBP
$1,330 USD
View
20 more retailers have this diamond
Prices start from £177 GBPSave up to £816 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
1.28ct Princess
£177 GBP