Princess|Lab Grown|IGI

1.23ct E VS1 Princess Lab Grown Diamond

ID • E/VS1 • IGI LG843693641

Shape and cutting style on the report: Princess cut

Certificate IGI LG843693641

Diamond specifications and retailer prices

From £148 GBP
$198 USD
As of October 30, 2026
Save £738 GBP (83%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £955 GBP at Brilliant Earth · As of October 18, 2026
View at Brilliant Earth

About this 1.23ct lab-grown princess diamond

This 1.23ct lab-grown princess sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843693641 or 843693641. Listed at 23 retailers as of October 30, 2026, with a 499% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843693641
Dimensions6.07 × 5.97 × 4.00 mm
L/W Ratio1.02
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.07 mm5.97 mm1.23 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843693641
Side View
Table 67.0%Crown 36.8°Girdle: MediumPavilion 38.2°Culet: NoneDepth 67.0%

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: £955 GBP|Low: £148 GBP|High: £955 GBP|Avg: £413 GBP
Brilliant Earth
Retailer 2
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October 31, 2026
Retailer 8£148 GBP
Retailer 14£165 GBP
Retailer 22£172 GBP
Retailer 4£183 GBP
Retailer 9£183 GBP
Retailer 10£210 GBP
Retailer 17£230 GBP
Retailer 18£300 GBP
Retailer 20£314 GBP
Retailer 15£318 GBP
Retailer 2£332 GBP
Retailer 7£335 GBP
Retailer 12£366 GBP
Retailer 21£448 GBP
Retailer 13£449 GBP
Retailer 3£537 GBP
Retailer 19£576 GBP
Retailer 6£589 GBP
Retailer 16£594 GBP
Retailer 11£629 GBP
Retailer 23£861 GBP
Retailer 5£886 GBP
Brilliant Earth£955 GBP

20 data points across 23 retailers

23 retailers£148 GBP to £886 GBP

A
Cheapest Retailer
-
£148 GBP
$198 USD
A
Retailer 2
-
£165 GBP
$221 USD
View
Final sale: no returns
A
Retailer 3
-
£172 GBP
$230 USD
View
A
Retailer 4
-
£183 GBP
$245 USD
View
A
Retailer 5
-
£183 GBP
$245 USD
View
A
Retailer 6
-
£210 GBP
HK$2,200 HKD
View
A
Retailer 7
-
£230 GBP
View
A
Retailer 8
-
£300 GBP
€383 EUR
View
A
Retailer 9
-
£314 GBP
ZAR 6,806 ZAR
View
A
Retailer 10
-
£318 GBP
$426 USD
View
A
Retailer 11
-
£332 GBP
View
A
Retailer 12
-
£335 GBP
$449 USD
View
A
Retailer 13
-
£366 GBP
$491 USD
View
B+
Retailer 14
-
£448 GBP
A$923 AUD
View
B+
Retailer 15
-
£449 GBP
$602 USD
View
Retailer 16
-
£537 GBP
$720 USD
View
Price last confirmed 9 days ago
B+
Retailer 17
-
£576 GBP
A$1,188 AUD
View
B+
Retailer 18
-
£589 GBP
$789 USD
View
B+
Retailer 19
-
£594 GBP
SGD 1,076 SGD
View
B
Retailer 20
-
£629 GBP
$842 USD
View
Retailer 21
-
£861 GBP
View
Price last confirmed 12 days ago
B
Retailer 22
-
£886 GBP
$1,187 USD
View
Most Expensive
Brilliant Earth
22169014A · Oct 18
£955 GBP
$1,280 USD
View
Price last confirmed 12 days ago
22 more retailers have this diamond
Prices start from £148 GBPSave up to £738 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
1.23ct Princess
£148 GBP