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Round|Lab Grown|IGI

1.50ct K VS1 Round Lab Grown Diamond

VG • K/VS1 • IGI LG451057000

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451057000

Diamond specifications and retailer prices

From £1,602 GBP
As of November 5, 2026
Save £1,825 GBP (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £5,028 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG451057000 or 451057000. Listed at 10 retailers as of November 3, 2026, with a 114% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057000
Dimensions7.38 × 7.43 × 4.39 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeMedium
Cert comments
Faint Brown
Top View
7.38 mm7.43 mm1.50 ctK / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057000
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 40.2°Culet: MediumDepth 59.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £5,028 GBP|Low: £1,538 GBP|High: £5,110 GBP|Avg: £2,932 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 5£1,602 GBP
Retailer 6£1,858 GBP
Retailer 8£1,858 GBP
Retailer 3£1,980 GBP
Retailer 9£2,348 GBP
Retailer 7£2,904 GBP
Retailer 4£2,913 GBP
Retailer 2£3,427 GBP
Retailer 10£4,159 GBP
MOH London£5,028 GBP

22 data points across 10 retailers

10 retailers£1,602 GBP to £3,427 GBP

B+
Cheapest Retailer
-
£1,602 GBP
B
Retailer 2
-
£1,743 GBP
View
Retailer 3
-
£1,858 GBP
View
Price last confirmed 26 days ago
B
Retailer 4
-
£1,858 GBP
View
B
Retailer 5
-
£1,980 GBP
View
B
Retailer 6
-
£2,554 GBP
View
B
Retailer 7
-
£2,904 GBP
View
B
Retailer 8
-
£2,913 GBP
View
B
Retailer 9
-
£3,427 GBP
View
Most Expensive
MOH London
LG451057000 · Nov 5
£5,028 GBP
View
Price under review
9 more retailers have this diamond
Prices start from £1,602 GBPSave up to £1,825 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 Round
£1,602 GBP