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Oval|Lab Grown|IGI

1.23ct H VS2 Oval Lab Grown Diamond

ID • H/VS2 • IGI LG615378987

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG615378987

Diamond specifications and retailer prices

From £339 GBP
$454 USD
As of November 3, 2026
Save £714 GBP (68%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,052 GBP at With Clarity · As of November 3, 2026
View at With Clarity

About this 1.23ct lab-grown oval diamond

This 1.23ct lab-grown oval sits in the classic one-carat band, graded H colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG615378987 or 615378987. Listed at 8 retailers as of November 3, 2026, with prices from £339 to £1,052, a £714 spread on the same certified stone. With Clarity lists it at £1,052. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
H
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.3°
Pavilion angle43.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG615378987
Dimensions8.09 × 6.01 × 4.05 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.09 mm6.01 mm1.23 ctH / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG615378987
Side View
Table 62.0%Crown 37.3°Girdle: MED-STKPavilion 43.6°Culet: NoneDepth 67.4%

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: Nov 3
Current: £713 GBP|Low: £339 GBP|High: £1,136 GBP|Avg: £666 GBP|+8.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
With Clarity
October 31, 2026
Retailer 9£339 GBP
Retailer 8£394 GBP
Retailer 10£436 GBP
Retailer 6£456 GBP
Retailer 5£470 GBP
Retailer 11£470 GBP
Retailer 12£590 GBP
Retailer 7£627 GBP
Retailer 1£713 GBP
Retailer 3£784 GBP
Retailer 4£975 GBP
With Clarity£1,031 GBP
Retailer 2£1,136 GBP

14 data points across 13 retailers

8 retailers£339 GBP to £1,052 GBP

A
Cheapest Retailer
-
£339 GBP
$454 USD
B+
Retailer 2
-
£394 GBP
$528 USD
View
B+
Retailer 3
-
£456 GBP
€583 EUR
View
B+
Retailer 4
-
£470 GBP
$630 USD
View
B
Retailer 5
-
£627 GBP
$841 USD
View
B
Retailer 6
-
£713 GBP
$956 USD
View
Retailer 7
-
£720 GBP
$966 USD
View
Price last confirmed 8 days ago
Most Expensive
B
With Clarity
615378987 · Nov 3
£1,052 GBP
$1,411 USD
View
7 more retailers have this diamond
Prices start from £339 GBPSave up to £714 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
£339 GBP