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Oval|Lab Grown|IGI

1.23ct E IF Oval Lab Grown Diamond

VG • E/IF • IGI LG815610251

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG815610251

Diamond specifications and retailer prices

From £171 GBP
$228 USD
As of October 28, 2026
Save £736 GBP (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £907 GBP at Reve Diamonds · As of October 28, 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 IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG815610251 or 815610251. Listed at 11 retailers as of October 28, 2026, with prices from £171 to £907, a £736 spread on the same certified stone. Reve Diamonds lists it at £907. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.23
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815610251
Dimensions8.67 × 6.00 × 3.76 mm
L/W Ratio1.45
Girdle conditionFaceted
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
8.67 mm6.00 mm1.23 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815610251
Side View
Table 60.0%Crown 36°Girdle: MED-STKPavilion 40°Culet: NoneDepth 62.7%

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 28
Current: £349 GBP|Low: £171 GBP|High: £907 GBP|Avg: £497 GBP|+1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
October 29, 2026
Retailer 9£171 GBP
Retailer 3£203 GBP
Retailer 8£264 GBP
Retailer 5£322 GBP
Retailer 1£349 GBP
Retailer 4£466 GBP
Retailer 10£595 GBP
Retailer 7£615 GBP
Retailer 2£653 GBP
Retailer 6£896 GBP
Reve Diamonds£907 GBP

26 data points across 11 retailers

11 retailers£171 GBP to £907 GBP

A
Cheapest Retailer
-
£171 GBP
$228 USD
Final sale: no returns
A
Retailer 2
-
£203 GBP
View
B+
Retailer 3
-
£264 GBP
$352 USD
View
A
Retailer 4
-
£322 GBP
ZAR 6,932 ZAR
View
A
Retailer 5
-
£349 GBP
View
B+
Retailer 6
-
£466 GBP
A$954 AUD
View
B+
Retailer 7
-
£595 GBP
$792 USD
View
B
Retailer 8
-
£615 GBP
$819 USD
View
B+
Retailer 9
-
£653 GBP
$869 USD
View
B
Retailer 10
-
£896 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
Reve Diamonds
4D61B7448 · Oct 28
£907 GBP
$1,208 USD
View
10 more retailers have this diamond
Prices start from £171 GBPSave up to £736 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
£171 GBP