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Round|Lab Grown|IGI

0.40ct I SI2 Round Lab Grown Diamond

VG • I/SI2 • IGI LG720528585

Certificate IGI LG720528585

Diamond specifications and retailer prices

From £118 GBP
₹14,965 INR
As of October 30, 2026
Save £179 GBP (60%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £297 GBP at Yorxs · As of October 28, 2026
View at Yorxs

About this 0.4ct lab-grown round diamond

This 0.4ct lab-grown round sits in the sub-half-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG720528585 or 720528585. Listed at 2 retailers as of October 28, 2026, with prices from £118 to £297, a £179 spread on the same certified stone. Yorxs lists it at £297. 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

0.40
Carat
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG720528585
Dimensions4.62 × 4.66 × 2.96 mm
L/W Ratio1.01
Top View
4.62 mm4.66 mm0.40 ctI / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG720528585
Side View
Table 57.0%CrownGirdlePavilionCuletDepth 63.9%

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: Oct 30
Current: £118 GBP|Low: £117 GBP|High: £297 GBP|Avg: £236 GBP|-3.7%
Retailer 1
Retailer 2
Yorxs
October 30, 2026
Retailer 1£118 GBP
Retailer 2£294 GBP
Yorxs£297 GBP

41 data points across 3 retailers

2 retailers£118 GBP to £297 GBP

B+
Cheapest Retailer
-
£118 GBP
₹14,965 INR
Most Expensive
B
Yorxs
B-2324 · Oct 28
£297 GBP
€377 EUR
View
1 more retailer has this diamond
Prices start from £118 GBPSave up to £179 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+
0.40ct Round
£118 GBP