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Round|Lab Grown|IGI

0.45ct F SI2 Round Lab Grown Diamond

VG • F/SI2 • IGI LGS3A75789

Certificate IGI LGS3A75789

Diamond specifications and retailer prices

From £334 GBP
As of November 5, 2026
Save £279 GBP (46%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £612 GBP at Yorxs · As of November 6, 2026
View at Yorxs

About this 0.45ct lab-grown round diamond

This 0.45ct lab-grown round sits in the sub-half-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LGS3A75789 or S3A75789. Listed at 2 retailers as of November 5, 2026, with prices from £334 to £612, a £279 spread on the same certified stone. Yorxs lists it at £612. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.45
Carat
F
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LGS3A75789
Dimensions4.81 × 4.87 × 3.05 mm
L/W Ratio1.01
Top View
4.81 mm4.87 mm0.45 ctF / SI2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LGS3A75789
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilionCulet: MediumDepth 63.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: £334 GBP|Low: £334 GBP|High: £616 GBP|Avg: £495 GBP|-2.4%
Retailer 1
Retailer 2
Yorxs
November 6, 2026
Retailer 1£334 GBP
Retailer 2£536 GBP
Yorxs£612 GBP

44 data points across 3 retailers

2 retailers£334 GBP to £612 GBP

B
Cheapest Retailer
-
£334 GBP
Most Expensive
B
Yorxs
MF 2 · Nov 6
£612 GBP
€785 EUR
View
1 more retailer has this diamond
Prices start from £334 GBPSave up to £279 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
0.45ct Round
£334 GBP