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Oval|Lab Grown|IGI

1.23ct E VS1 Oval Lab Grown Diamond

EX • E/VS1 • IGI LG631465559

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG631465559

Diamond specifications and retailer prices

From £202 GBP
$269 USD
As of October 30, 2026
Save £793 GBP (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £995 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

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 LG631465559 or 631465559. Listed at 18 retailers as of October 30, 2026, with prices from £202 to £995, a £793 spread on the same certified stone. Reve Diamonds lists it at £995. 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 angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG631465559
Dimensions8.62 × 6.10 × 3.68 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.62 mm6.10 mm1.23 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG631465559
Side View
Table 59.0%Crown 35.3°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 60.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £423 GBP|Low: £181 GBP|High: £995 GBP|Avg: £395 GBP|+4.1%
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
Reve Diamonds
October 28, 2026
Retailer 3£181 GBP
Retailer 13£202 GBP
Retailer 4£222 GBP
Retailer 11£225 GBP
Retailer 9£250 GBP
Retailer 6£283 GBP
Retailer 5£348 GBP
Retailer 12£378 GBP
Retailer 7£386 GBP
Retailer 2£404 GBP
Retailer 1£423 GBP
Retailer 10£724 GBP
Retailer 8£904 GBP
Reve Diamonds£995 GBP

34 data points across 14 retailers

18 retailers£202 GBP to £995 GBP

Retailer 1
-
£181 GBP
$241 USD
Price last confirmed 36 days ago
Retailer 2
-
£181 GBP
$241 USD
View
Price last confirmed 31 days ago
A
Retailer 3
-
£202 GBP
$269 USD
View
Final sale: no returns
Retailer 4
-
£210 GBP
$280 USD
View
Price last confirmed 35 days ago
Retailer 5
-
£222 GBP
$295 USD
View
Price last confirmed 35 days ago
Retailer 6
-
£222 GBP
$295 USD
View
Price last confirmed 30 days ago
Retailer 7
-
£250 GBP
HK$2,600 HKD
View
Price last confirmed 9 days ago
A
Retailer 8
-
£283 GBP
View
A
Retailer 9
-
£348 GBP
$464 USD
View
A
Retailer 10
-
£378 GBP
$504 USD
View
A
Retailer 11
-
£386 GBP
ZAR 8,294 ZAR
View
A
Retailer 12
-
£404 GBP
$538 USD
View
B+
Retailer 13
-
£423 GBP
View
Retailer 14
-
£722 GBP
$961 USD
View
Price last confirmed 29 days ago
Retailer 15
-
£724 GBP
$964 USD
View
Price last confirmed 7 days ago
B
Retailer 16
-
£760 GBP
$1,013 USD
View
Retailer 17
-
£904 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
Reve Diamonds
D2C3E1D7F · Oct 30
£995 GBP
$1,324 USD
View
17 more retailers have this diamond
Prices start from £202 GBPSave up to £793 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
£202 GBP