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Round|Lab Grown|IGI

0.50ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG648405828

Certificate IGI LG648405828

Diamond specifications and retailer prices

From £384 GBP
₹48,985 INR
As of November 2, 2026
Save £397 GBP (51%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £781 GBP at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 0.5ct lab-grown round diamond

This 0.5ct lab-grown round sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG648405828 or 648405828. Listed at 3 retailers as of November 1, 2026, with prices from £384 to £781, a £397 spread on the same certified stone. 77 Diamonds lists it at £781. 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

0.50
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG648405828
Dimensions5.09 × 5.11 × 3.04 mm
L/W Ratio1.00
Top View
5.09 mm5.11 mm0.50 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648405828
Side View
Table 62.0%CrownGirdlePavilionCuletDepth 59.6%

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 2
Current: £781 GBP|Low: £383 GBP|High: £820 GBP|Avg: £645 GBP|-2.4%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 2£384 GBP
Retailer 4£660 GBP
Retailer 3£691 GBP
77 Diamonds£781 GBP

41 data points across 4 retailers

3 retailers£384 GBP to £781 GBP

B+
Cheapest Retailer
-
£384 GBP
₹48,985 INR
B
Retailer 2
-
£691 GBP
€882 EUR
View
Most Expensive
B
77 Diamonds
RBCPYMVN4DQT · Nov 1
£781 GBP
View
2 more retailers have this diamond
Prices start from £384 GBPSave up to £397 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+
0.50ct Round
£384 GBP