Oval|Lab Grown|IGI

1.50ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG848663940

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG848663940

Diamond specifications and retailer prices

From £886 GBP
As of October 26, 2026
Save £77 GBP (8%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £963 GBP at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG848663940 or 848663940. Listed at 8 retailers as of October 26, 2026, with a relatively tight 9% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848663940
Dimensions9.04 × 6.47 × 4.02 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.04 mm6.47 mm1.50 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848663940
Side View
Table 59.0%Crown 34.8°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 26
Current: £337 GBP|Low: £242 GBP|High: £886 GBP|Avg: £434 GBP|+0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 26, 2026
Retailer 2£243 GBP
Retailer 3£328 GBP
Retailer 1£337 GBP
Retailer 6£343 GBP
Retailer 5£611 GBP
Retailer 7£649 GBP
Retailer 4£886 GBP

6 data points across 7 retailers

8 retailers£886 GBP to £963 GBP

Retailer 1
-
£243 GBP
Price last confirmed 7 days ago
Retailer 2
-
£328 GBP
$439 USD
View
Price last confirmed 7 days ago
Retailer 3
-
£337 GBP
View
Price last confirmed 7 days ago
Retailer 4
-
£343 GBP
$460 USD
View
Price last confirmed 7 days ago
Retailer 5
-
£611 GBP
$819 USD
View
Price last confirmed 7 days ago
Retailer 6
-
£649 GBP
$869 USD
View
Price last confirmed 7 days ago
B
Retailer 7
-
£886 GBP
View
Most Expensive
B
Brilliant Earth
22279269A · Oct 26
£963 GBP
$1,290 USD
View
7 more retailers have this diamond
Prices start from £886 GBPSave up to £77 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
£886 GBP