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Round|Lab Grown|IGI

1.03ct I VS1 Round Lab Grown Diamond

EX • I/VS1 • IGI LG628490713

Shape and cutting style on the report: Round brilliant

Certificate IGI LG628490713

Diamond specifications and retailer prices

From £248 GBP
$333 USD
As of November 1, 2026
Save £376 GBP (60%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £625 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.03ct lab-grown round diamond

This 1.03ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG628490713 or 628490713. Listed at 5 retailers as of November 1, 2026, with prices from £248 to £625, a £376 spread on the same certified stone. MOH London lists it at £625. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.6°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628490713
Dimensions6.47 × 6.44 × 3.97 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.47 mm6.44 mm1.03 ctI / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG628490713
Side View
Table 62.0%Crown 34.6°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 61.4%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £625 GBP|Low: £180 GBP|High: £680 GBP|Avg: £387 GBP|-7.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 3£248 GBP
Retailer 6£292 GBP
Retailer 4£317 GBP
Retailer 5£352 GBP
Retailer 7£372 GBP
Retailer 2£471 GBP
MOH London£625 GBP

14 data points across 7 retailers

5 retailers£248 GBP to £625 GBP

B+
Cheapest Retailer
-
£248 GBP
$333 USD
B+
Retailer 2
-
£317 GBP
$425 USD
View
B+
Retailer 3
-
£352 GBP
$472 USD
View
B
Retailer 4
-
£471 GBP
$632 USD
View
Most Expensive
B
MOH London
LG628490713 · Nov 1
£625 GBP
View
4 more retailers have this diamond
Prices start from £248 GBPSave up to £376 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+
1.03ct Round
£248 GBP