CaratHunter
Plans
Oval|Lab Grown|IGI

1.23ct E VS1 Oval Lab Grown Diamond

EX • E/VS1 • IGI LG733540938

Shape and cutting style on the report: Oval modified brilliant

Certificate IGI LG733540938

Diamond specifications and retailer prices

From £339 GBP
$452 USD
As of October 28, 2026
Save £1,251 GBP (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,591 GBP at Taylor and Hart · As of October 27, 2026
View at Taylor and Hart

About this 1.23ct lab-grown oval diamond

This 1.23ct lab-grown oval 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 LG733540938 or 733540938. Listed at 14 retailers as of October 27, 2026, with prices from £339 to £1,591, a £1,251 spread on the same certified stone. Taylor and Hart lists it at £1,591. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle44°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733540938
Dimensions8.60 × 5.98 × 3.65 mm
L/W Ratio1.44
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.60 mm5.98 mm1.23 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733540938
Side View
Table 58.0%Crown 35.3°Girdle: MED-STKPavilion 44°Culet: NoneDepth 61.0%

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 28
Current: £618 GBP|Low: £242 GBP|High: £1,591 GBP|Avg: £742 GBP|+2.4%
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
Taylor and Hart
October 29, 2026
Retailer 11£304 GBP
Retailer 3£339 GBP
Retailer 2£341 GBP
Retailer 4£377 GBP
Retailer 5£392 GBP
Retailer 10£488 GBP
Retailer 12£597 GBP
Retailer 1£618 GBP
Retailer 7£648 GBP
Retailer 8£984 GBP
Retailer 9£1,057 GBP
Retailer 13£1,212 GBP
Retailer 6£1,481 GBP
Taylor and Hart£1,591 GBP

42 data points across 14 retailers

14 retailers£339 GBP to £1,591 GBP

Retailer 1
-
£304 GBP
$405 USD
Price last confirmed 19 days ago
A
Retailer 2
-
£339 GBP
$452 USD
View
Final sale: no returns
Retailer 3
-
£341 GBP
$454 USD
View
Price last confirmed 20 days ago
Retailer 4
-
£377 GBP
$502 USD
View
Price last confirmed 27 days ago
B+
Retailer 5
-
£392 GBP
$522 USD
View
B+
Retailer 6
-
£488 GBP
$650 USD
View
B
Retailer 7
-
£597 GBP
$795 USD
View
B+
Retailer 8
-
£618 GBP
View
B+
Retailer 9
-
£648 GBP
ZAR 13,939 ZAR
View
B
Retailer 10
-
£984 GBP
$1,310 USD
View
B
Retailer 11
-
£1,057 GBP
$1,408 USD
View
Retailer 12
-
£1,212 GBP
$1,614 USD
View
Price last confirmed 22 days ago
B
Retailer 13
-
£1,481 GBP
View
Most Expensive
B
Taylor and Hart
SHNPE6D · Oct 27
£1,591 GBP
$2,119 USD
View
13 more retailers have this diamond
Prices start from £339 GBPSave up to £1,251 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 Oval
£339 GBP