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Round|Lab Grown|IGI

1.35ct K VS1 Round Lab Grown Diamond

EX • K/VS1 • IGI LG451057004

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451057004

Diamond specifications and retailer prices

From £899 GBP
As of November 5, 2026
Save £2,453 GBP (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,352 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.35ct lab-grown round diamond

This 1.35ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG451057004 or 451057004. Listed at 10 retailers as of November 1, 2026, with prices from £899 to £3,352, a £2,453 spread on the same certified stone. MOH London lists it at £3,352. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.35
Carat
K
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451057004
Dimensions7.25 × 7.29 × 4.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Brown
Top View
7.25 mm7.29 mm1.35 ctK / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451057004
Side View
Table 58.0%Crown 31.4°Girdle: MediumPavilion 40.2°Culet: NoneDepth 58.2%

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: £3,352 GBP|Low: £863 GBP|High: £3,391 GBP|Avg: £1,788 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 4£899 GBP
Retailer 5£1,043 GBP
Retailer 7£1,043 GBP
Retailer 3£1,170 GBP
Retailer 8£1,470 GBP
Retailer 6£1,654 GBP
Retailer 2£1,919 GBP
Retailer 9£1,998 GBP
Retailer 10£2,333 GBP
MOH London£3,352 GBP

21 data points across 10 retailers

10 retailers£899 GBP to £3,352 GBP

B+
Cheapest Retailer
-
£899 GBP
B+
Retailer 2
-
£979 GBP
View
Retailer 3
-
£1,043 GBP
View
Price last confirmed 25 days ago
B+
Retailer 4
-
£1,043 GBP
View
B
Retailer 5
-
£1,170 GBP
View
B
Retailer 6
-
£1,654 GBP
View
B
Retailer 7
-
£1,919 GBP
View
B
Retailer 8
-
£1,955 GBP
View
B
Retailer 9
-
£1,998 GBP
View
Most Expensive
B
MOH London
LG451057004 · Nov 1
£3,352 GBP
View
9 more retailers have this diamond
Prices start from £899 GBPSave up to £2,453 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+
1.35ct Round
£899 GBP