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Oval|Lab Grown|IGI

1.50ct K SI2 Oval Lab Grown Diamond

GD • K/SI2 • IGI LG451057399

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451057399

Diamond specifications and retailer prices

From £1,272 GBP
As of November 5, 2026
Save £2,932 GBP (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,204 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 SI2 clarity (slightly-included), with a standard cut grade and certified by IGI LG451057399 or 451057399. Listed at 8 retailers as of November 5, 2026, with prices from £1,272 to £4,204, a £2,932 spread on the same certified stone. MOH London lists it at £4,204. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
K
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057399
Dimensions9.04 × 6.50 × 4.08 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizePointed
Top View
9.04 mm6.50 mm1.50 ctK / SI2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057399
Side View
Table 59.0%Crown 34.9°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.8%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: £4,204 GBP|Low: £1,272 GBP|High: £4,273 GBP|Avg: £2,521 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 3£1,272 GBP
Retailer 6£1,511 GBP
Retailer 5£1,968 GBP
Retailer 4£2,319 GBP
Retailer 2£2,545 GBP
Retailer 7£3,304 GBP
MOH London£4,204 GBP

14 data points across 7 retailers

8 retailers£1,272 GBP to £4,204 GBP

B
Cheapest Retailer
-
£1,272 GBP
B
Retailer 2
-
£1,384 GBP
View
B
Retailer 3
-
£1,476 GBP
View
Retailer 4
-
£1,476 GBP
View
Price last confirmed 25 days ago
C
Retailer 5
-
£2,319 GBP
View
C
Retailer 6
-
£2,545 GBP
View
C
Retailer 7
-
£2,767 GBP
View
Most Expensive
C
MOH London
LG451057399 · Nov 5
£4,204 GBP
View
7 more retailers have this diamond
Prices start from £1,272 GBPSave up to £2,932 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
£1,272 GBP