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Round|Lab Grown|IGI

1.03ct F SI2 Round Lab Grown Diamond

ID • F/SI2 • IGI LG696546398

Certificate IGI LG696546398

Diamond specifications and retailer prices

From £335 GBP
As of November 6, 2026
Save £140 GBP (30%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £476 GBP at Zales · As of November 4, 2026
View at Zales

About this 1.03ct lab-grown round diamond

This 1.03ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG696546398 or 696546398. Listed at 3 retailers as of November 4, 2026, with prices from £335 to £476, a £140 spread on the same certified stone. Zales lists it at £476. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.03
Carat
F
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG696546398
Dimensions6.47 × 6.50 mm
L/W Ratio1.00
Top View
6.47 mm6.50 mm1.03 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG696546398
Side View
Table 56.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.6%

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 6
Current: £335 GBP|Low: £335 GBP|High: £810 GBP|Avg: £599 GBP|-58.6%
Retailer 1
Retailer 2
Zales
November 6, 2026
Retailer 1£335 GBP
Retailer 2£476 GBP
Zales£476 GBP

10 data points across 3 retailers

3 retailers£335 GBP to £476 GBP

B+
Cheapest Retailer
-
£335 GBP
B
Retailer 2
-
£476 GBP
View
Most Expensive
B
Zales
524926325 · Nov 4
£476 GBP
$640 USD
View
2 more retailers have this diamond
Prices start from £335 GBPSave up to £140 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
£335 GBP