Oval|Lab Grown|IGI

1.23ct E IF Oval Lab Grown Diamond

VG • E/IF • IGI LG843644587

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG843644587

Diamond specifications and retailer prices

From £180 GBP
$240 USD
As of October 29, 2026
Save £1,547 GBP (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £2,323 GBP at Flawless Fine Jewelry · As of October 16, 2026
View at Flawless Fine Jewelry

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 LG843644587 or 843644587. Listed at 23 retailers as of October 29, 2026, with a 858% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle34.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843644587
Dimensions8.45 × 6.07 × 3.80 mm
L/W Ratio1.39
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
8.45 mm6.07 mm1.23 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843644587
Side View
Table 59.0%Crown 34.2°Girdle: MED-THKPavilion 40.7°Culet: NoneDepth 62.6%

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 29
Current: £2,323 GBP|Low: £180 GBP|High: £2,929 GBP|Avg: £812 GBP
Flawless Fine Jewelry
Retailer 2
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October 29, 2026
Retailer 12£180 GBP
Retailer 22£207 GBP
Retailer 23£209 GBP
Retailer 8£224 GBP
Retailer 20£224 GBP
Retailer 17£238 GBP
Retailer 11£377 GBP
Retailer 18£384 GBP
Retailer 7£403 GBP
Retailer 2£422 GBP
Retailer 19£545 GBP
Retailer 3£605 GBP
Retailer 15£718 GBP
Retailer 6£721 GBP
Retailer 9£757 GBP
Retailer 5£816 GBP
Retailer 13£900 GBP
Retailer 16£972 GBP
Retailer 10£992 GBP
Retailer 14£1,111 GBP
Retailer 4£1,437 GBP
Retailer 21£1,727 GBP
Flawless Fine Jewelry£2,323 GBP

14 data points across 23 retailers

23 retailers£180 GBP to £1,727 GBP

A
Cheapest Retailer
-
£180 GBP
$240 USD
A
Retailer 2
-
£207 GBP
$276 USD
View
Final sale: no returns
A
Retailer 3
-
£209 GBP
$278 USD
View
A
Retailer 4
-
£224 GBP
$298 USD
View
A
Retailer 5
-
£224 GBP
$298 USD
View
A
Retailer 6
-
£238 GBP
View
A
Retailer 7
-
£377 GBP
$502 USD
View
A
Retailer 8
-
£384 GBP
ZAR 8,258 ZAR
View
A
Retailer 9
-
£403 GBP
$537 USD
View
A
Retailer 10
-
£422 GBP
View
B+
Retailer 11
-
£545 GBP
A$1,116 AUD
View
B+
Retailer 12
-
£605 GBP
$806 USD
View
B+
Retailer 13
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£718 GBP
$956 USD
View
B+
Retailer 14
-
£721 GBP
$960 USD
View
B+
Retailer 15
-
£757 GBP
$1,008 USD
View
B
Retailer 16
-
£816 GBP
$1,087 USD
View
B
Retailer 17
-
£900 GBP
View
B
Retailer 18
-
£972 GBP
$1,295 USD
View
Price last confirmed 10 days ago
B
Retailer 19
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£992 GBP
$1,321 USD
View
B
Retailer 20
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£1,111 GBP
$1,480 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
£1,437 GBP
$1,913 USD
View
B
Retailer 22
-
£1,727 GBP
$2,300 USD
View
Most Expensive
B
Flawless Fine Jewelry
DB7A6F5AA · Oct 16
£2,323 GBP
View
Price last confirmed 13 days ago
22 more retailers have this diamond
Prices start from £180 GBPSave up to £1,547 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
£180 GBP