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Oval|Lab Grown|IGI

1.50ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG526279690

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG526279690

Diamond specifications and retailer prices

From £879 GBP
$1,170 USD
As of October 29, 2026
Save £1,281 GBP (59%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,855 GBP at NZ Jewellers · As of October 28, 2026
View at NZ Jewellers

About this 1.5ct lab-grown oval diamond

This 1.5ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG526279690 or 526279690. Listed at 12 retailers as of October 29, 2026, with a 146% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526279690
Dimensions8.52 × 6.41 × 4.24 mm
L/W Ratio1.33
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
8.52 mm6.41 mm1.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526279690
Side View
Table 57.0%Crown 38.8°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 66.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £2,160 GBP|Low: £879 GBP|High: £4,408 GBP|Avg: £1,913 GBP|-0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 6£879 GBP
Retailer 10£986 GBP
Retailer 5£1,313 GBP
Retailer 9£1,470 GBP
Retailer 7£1,523 GBP
Retailer 2£1,648 GBP
Retailer 1£2,160 GBP
Retailer 8£2,391 GBP
Retailer 4£2,626 GBP
Retailer 3£4,374 GBP

40 data points across 10 retailers

12 retailers£879 GBP to £2,160 GBP

B
Cheapest Retailer
-
£879 GBP
$1,170 USD
B
Retailer 2
-
£1,313 GBP
$1,749 USD
View
B
Retailer 3
-
£1,428 GBP
$1,902 USD
View
B
Retailer 4
-
£1,470 GBP
$1,957 USD
View
Final sale: no returns
Retailer 5
-
£1,523 GBP
$2,028 USD
View
Price last confirmed 17 days ago
B
Retailer 6
-
£1,523 GBP
$2,028 USD
View
B
Retailer 7
-
£1,648 GBP
$2,195 USD
View
B
Retailer 8
-
£2,160 GBP
View
Retailer 9
-
£2,391 GBP
$3,184 USD
View
Price under review
Retailer 10
-
£2,626 GBP
$3,497 USD
View
Price under review
Most Expensive
NZ Jewellers
fb839bcf-edda-4d33-844b-ebeb888cef9c · Oct 28
£2,855 GBP
$3,802 USD
View
Price under review
10 more retailers have this diamond
Prices start from £879 GBPSave up to £1,281 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.

B
1.50ct Oval
£879 GBP