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Princess|Lab Grown|IGI

1.28ct E VS1 Princess Lab Grown Diamond

ID • E/VS1 • IGI LG813669315

Shape and cutting style on the report: Princess cut

Certificate IGI LG813669315

Diamond specifications and retailer prices

From £152 GBP
$204 USD
As of October 30, 2026
Save £840 GBP (85%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £993 GBP at Brilliant Earth · As of October 30, 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 LG813669315 or 813669315. Listed at 20 retailers as of October 30, 2026, with prices from £152 to £993, a £840 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 angle42.8°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813669315
Dimensions5.93 × 5.89 × 4.21 mm
L/W Ratio1.01
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.93 mm5.89 mm1.28 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813669315
Side View
Table 69.0%Crown 42.8°Girdle: MediumPavilion 38.3°Culet: NoneDepth 71.5%

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: £424 GBP
Brilliant Earth
Retailer 2
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Retailer 7
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Retailer 12
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Retailer 20
October 31, 2026
Retailer 4£152 GBP
Retailer 9£170 GBP
Retailer 17£177 GBP
Retailer 5£189 GBP
Retailer 20£189 GBP
Retailer 19£238 GBP
Retailer 16£320 GBP
Retailer 10£326 GBP
Retailer 13£337 GBP
Retailer 2£345 GBP
Retailer 7£359 GBP
Retailer 6£429 GBP
Retailer 15£462 GBP
Retailer 12£530 GBP
Retailer 3£608 GBP
Retailer 18£610 GBP
Retailer 8£647 GBP
Retailer 14£888 GBP
Retailer 11£901 GBP
Brilliant Earth£993 GBP

40 data points across 20 retailers

20 retailers£152 GBP to £993 GBP

A
Cheapest Retailer
-
£152 GBP
$204 USD
A
Retailer 2
-
£170 GBP
$228 USD
View
Final sale: no returns
A
Retailer 3
-
£177 GBP
$237 USD
View
A
Retailer 4
-
£189 GBP
$253 USD
View
A
Retailer 5
-
£189 GBP
$253 USD
View
Retailer 6
-
£238 GBP
View
Price last confirmed 14 days ago
Retailer 7
-
£320 GBP
ZAR 6,917 ZAR
View
Price last confirmed 8 days ago
A
Retailer 8
-
£326 GBP
$437 USD
View
A
Retailer 9
-
£337 GBP
€430 EUR
View
A
Retailer 10
-
£345 GBP
View
A
Retailer 11
-
£359 GBP
$481 USD
View
B+
Retailer 12
-
£429 GBP
$575 USD
View
B+
Retailer 13
-
£462 GBP
A$952 AUD
View
B+
Retailer 14
-
£530 GBP
$710 USD
View
B+
Retailer 15
-
£608 GBP
$814 USD
View
B+
Retailer 16
-
£610 GBP
$817 USD
View
B
Retailer 17
-
£647 GBP
$867 USD
View
B
Retailer 18
-
£888 GBP
View
B
Retailer 19
-
£901 GBP
$1,207 USD
View
Most Expensive
B
Brilliant Earth
20452170A · Oct 30
£993 GBP
$1,330 USD
View
19 more retailers have this diamond
Prices start from £152 GBPSave up to £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
1.28ct Princess
£152 GBP