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Round|Lab Grown|IGI

1.51ct K VS1 Round Lab Grown Diamond

ID • K/VS1 • IGI LG492123582

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492123582

Diamond specifications and retailer prices

From £1,612 GBP
As of November 5, 2026
Save £1,837 GBP (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £5,061 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct 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 top-tier cut grade and certified by IGI LG492123582 or 492123582. 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. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
K
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492123582
Dimensions7.41 × 7.43 × 4.54 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Brown This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.41 mm7.43 mm1.51 ctK / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492123582
Side View
Table 53.5%Crown 34.5°Girdle: THN-MEDPavilion 40.2°Culet: NoneDepth 61.2%

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: £5,061 GBP|Low: £1,548 GBP|High: £5,144 GBP|Avg: £2,851 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6£1,612 GBP
Retailer 9£1,754 GBP
Retailer 7£1,871 GBP
Retailer 4£1,995 GBP
Retailer 11£2,362 GBP
Retailer 10£2,571 GBP
Retailer 8£2,922 GBP
Retailer 5£2,932 GBP
Retailer 2£3,449 GBP
Retailer 3£4,186 GBP
MOH London£5,061 GBP

21 data points across 11 retailers

10 retailers£1,612 GBP to £3,449 GBP

B+
Cheapest Retailer
-
£1,612 GBP
B
Retailer 2
-
£1,754 GBP
View
B
Retailer 3
-
£1,871 GBP
View
Retailer 4
-
£1,871 GBP
View
Price last confirmed 26 days ago
B
Retailer 5
-
£1,995 GBP
View
B
Retailer 6
-
£2,571 GBP
View
B
Retailer 7
-
£2,922 GBP
View
B
Retailer 8
-
£2,932 GBP
View
B
Retailer 9
-
£3,449 GBP
View
Most Expensive
MOH London
LG492123582 · Nov 5
£5,061 GBP
View
Price under review
9 more retailers have this diamond
Prices start from £1,612 GBPSave up to £1,837 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+
1.51ct Round
£1,612 GBP