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Round|Lab Grown|IGI

1.00ct K VS1 Round Lab Grown Diamond

ID • K/VS1 • IGI LG761535454

Shape and cutting style on the report: Round brilliant

Certificate IGI LG761535454

Diamond specifications and retailer prices

From £179 GBP
As of November 1, 2026
Save £139 GBP (44%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £635 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG761535454 or 761535454. Listed at 6 retailers as of November 1, 2026, with a 78% 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

1.00
Carat
K
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761535454
Dimensions6.50 × 6.46 × 3.89 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.50 mm6.46 mm1.00 ctK / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG761535454
Side View
Table 59.0%Crown 33.2°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £635 GBP|Low: £179 GBP|High: £867 GBP|Avg: £321 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 6£179 GBP
Retailer 4£236 GBP
Retailer 3£252 GBP
Retailer 5£264 GBP
Retailer 2£318 GBP
MOH London£635 GBP

18 data points across 6 retailers

6 retailers£179 GBP to £318 GBP

A
Cheapest Retailer
-
£179 GBP
Retailer 2
-
£236 GBP
View
Price last confirmed 8 days ago
A
Retailer 3
-
£252 GBP
View
A
Retailer 4
-
£264 GBP
View
A
Retailer 5
-
£318 GBP
View
Most Expensive
MOH London
LG761535454 · Oct 25
£635 GBP
View
Price last confirmed 12 days ago
5 more retailers have this diamond
Prices start from £179 GBPSave up to £139 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
1.00ct Round
£179 GBP