Oval|Lab Grown|IGI

1.23ct E VVS1 Oval Lab Grown Diamond

ID • E/VVS1 • IGI LG818668744

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818668744

Diamond specifications and retailer prices

From £154 GBP
$206 USD
As of October 26, 2026
Save £861 GBP (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,015 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG818668744 or 818668744. Listed at 22 retailers as of October 26, 2026, with prices from £154 to £1,015, a £861 spread on the same certified stone. Brilliant Earth lists it at £1,015. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle42.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818668744
Dimensions8.66 × 5.76 × 3.84 mm
L/W Ratio1.50
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.66 mm5.76 mm1.23 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818668744
Side View
Table 62.0%Crown 39.8°Girdle: MED-STKPavilion 42.2°Culet: NoneDepth 66.7%

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 26
Current: £1,015 GBP|Low: £148 GBP|High: £1,224 GBP|Avg: £455 GBP|-7.5%
Brilliant Earth
Retailer 2
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Retailer 22
October 29, 2026
Retailer 3£154 GBP
Retailer 4£172 GBP
Retailer 9£178 GBP
Retailer 7£191 GBP
Retailer 12£191 GBP
Retailer 21£235 GBP
Retailer 13£257 GBP
Retailer 19£310 GBP
Retailer 18£323 GBP
Retailer 16£349 GBP
Retailer 15£388 GBP
Retailer 11£428 GBP
Retailer 17£467 GBP
Retailer 22£493 GBP
Retailer 8£613 GBP
Retailer 6£631 GBP
Retailer 2£635 GBP
Retailer 10£637 GBP
Retailer 14£653 GBP
Retailer 20£770 GBP
Retailer 5£906 GBP
Brilliant Earth£1,015 GBP

41 data points across 22 retailers

22 retailers£154 GBP to £1,015 GBP

A
Cheapest Retailer
-
£154 GBP
$206 USD
A
Retailer 2
-
£172 GBP
$231 USD
View
Final sale: no returns
A
Retailer 3
-
£178 GBP
$239 USD
View
A
Retailer 4
-
£191 GBP
$256 USD
View
A
Retailer 5
-
£191 GBP
$256 USD
View
Retailer 6
-
£235 GBP
View
Price last confirmed 14 days ago
B+
Retailer 7
-
£257 GBP
$345 USD
View
Retailer 8
-
£310 GBP
€395 EUR
View
Price last confirmed 8 days ago
Retailer 9
-
£323 GBP
ZAR 6,987 ZAR
View
Price last confirmed 8 days ago
A
Retailer 10
-
£349 GBP
View
A
Retailer 11
-
£388 GBP
$520 USD
View
B+
Retailer 12
-
£428 GBP
$573 USD
View
B+
Retailer 13
-
£467 GBP
A$962 AUD
View
B+
Retailer 14
-
£493 GBP
$660 USD
View
B+
Retailer 15
-
£613 GBP
$822 USD
View
Retailer 16
-
£631 GBP
$845 USD
View
Price last confirmed 12 days ago
B+
Retailer 17
-
£635 GBP
A$1,309 AUD
View
B
Retailer 18
-
£650 GBP
$871 USD
View
B
Retailer 19
-
£653 GBP
$876 USD
View
Retailer 20
-
£770 GBP
View
Price last confirmed 10 days ago
B
Retailer 21
-
£906 GBP
$1,214 USD
View
Most Expensive
B
Brilliant Earth
21360027A · Oct 29
£1,015 GBP
$1,360 USD
View
21 more retailers have this diamond
Prices start from £154 GBPSave up to £861 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
£154 GBP