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Oval|Lab Grown|IGI

1.50ct K SI1 Oval Lab Grown Diamond

ID • K/SI1 • IGI LG445039328

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445039328

Diamond specifications and retailer prices

From £681 GBP
As of November 5, 2026
Save £1,989 GBP (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £2,670 GBP at MOH London · As of November 5, 2026
View at MOH London

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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445039328 or 445039328. Listed at 9 retailers as of November 5, 2026, with prices from £681 to £2,670, a £1,989 spread on the same certified stone. MOH London lists it at £2,670. 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
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445039328
Dimensions8.81 × 6.57 × 4.00 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.81 mm6.57 mm1.50 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445039328
Side View
Table 59.0%Crown 34.1°Girdle: STK-THKPavilion 40.3°Culet: NoneDepth 60.9%

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 5
Current: £2,670 GBP|Low: £654 GBP|High: £2,714 GBP|Avg: £1,408 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 4£681 GBP
Retailer 8£740 GBP
Retailer 5£790 GBP
Retailer 2£919 GBP
Retailer 9£1,168 GBP
Retailer 6£1,266 GBP
Retailer 3£1,756 GBP
Retailer 7£2,220 GBP
MOH London£2,670 GBP

18 data points across 9 retailers

9 retailers£681 GBP to £2,670 GBP

A
Cheapest Retailer
-
£681 GBP
A
Retailer 2
-
£740 GBP
View
Retailer 3
-
£790 GBP
View
Price last confirmed 25 days ago
A
Retailer 4
-
£790 GBP
View
B+
Retailer 5
-
£919 GBP
View
B+
Retailer 6
-
£1,266 GBP
View
B
Retailer 7
-
£1,756 GBP
View
B
Retailer 8
-
£2,220 GBP
View
Most Expensive
B
MOH London
LG445039328 · Nov 5
£2,670 GBP
View
8 more retailers have this diamond
Prices start from £681 GBPSave up to £1,989 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
1.50ct Oval
£681 GBP