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Oval|Lab Grown|IGI

1.23ct E VS1 Oval Lab Grown Diamond

EX • E/VS1 • IGI LG816658990

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG816658990

Diamond specifications and retailer prices

From £246 GBP
$328 USD
As of October 28, 2026
Save £1,173 GBP (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,419 GBP at Do Amore Diamonds · As of October 23, 2026
View at Do Amore 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 LG816658990 or 816658990. Listed at 17 retailers as of October 23, 2026, with prices from £246 to £1,419, a £1,173 spread on the same certified stone. Do Amore Diamonds lists it at £1,419. 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 angle35.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816658990
Dimensions8.25 × 6.04 × 3.81 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.25 mm6.04 mm1.23 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816658990
Side View
Table 62.0%Crown 35.6°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 63.1%

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: £1,419 GBP|Low: £140 GBP|High: £1,419 GBP|Avg: £479 GBP|+1.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 27, 2026
Retailer 4£148 GBP
Retailer 6£165 GBP
Retailer 5£183 GBP
Retailer 16£183 GBP
Retailer 8£246 GBP
Retailer 12£253 GBP
Retailer 10£269 GBP
Retailer 13£345 GBP
Retailer 11£363 GBP
Retailer 15£498 GBP
Retailer 2£564 GBP
Retailer 17£592 GBP
Retailer 3£651 GBP
Retailer 9£780 GBP
Retailer 14£815 GBP
Retailer 7£889 GBP
Do Amore Diamonds£1,419 GBP

30 data points across 17 retailers

17 retailers£246 GBP to £1,419 GBP

Retailer 1
-
£148 GBP
$197 USD
Price last confirmed 8 days ago
Retailer 2
-
£148 GBP
$197 USD
View
Price last confirmed 7 days ago
Retailer 3
-
£183 GBP
$244 USD
View
Price last confirmed 13 days ago
Retailer 4
-
£183 GBP
$244 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£246 GBP
$328 USD
View
Retailer 6
-
£253 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£269 GBP
$358 USD
View
Retailer 8
-
£345 GBP
ZAR 7,414 ZAR
View
Price last confirmed 11 days ago
Retailer 9
-
£363 GBP
View
Price last confirmed 7 days ago
Retailer 10
-
£498 GBP
A$1,021 AUD
View
Price last confirmed 12 days ago
B+
Retailer 11
-
£564 GBP
A$1,155 AUD
View
Retailer 12
-
£592 GBP
$788 USD
View
Price last confirmed 7 days ago
Retailer 13
-
£651 GBP
$867 USD
View
Price last confirmed 8 days ago
B
Retailer 14
-
£780 GBP
$1,039 USD
View
Retailer 15
-
£815 GBP
View
Price last confirmed 8 days ago
B
Retailer 16
-
£889 GBP
$1,184 USD
View
Most Expensive
B
Do Amore Diamonds
27-67C134D2D · Oct 23
£1,419 GBP
$1,890 USD
View
16 more retailers have this diamond
Prices start from £246 GBPSave up to £1,173 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
£246 GBP