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Round|Lab Grown|GIA

0.40ct H VS1 Round Lab Grown Diamond

VG • H/VS1 • GIA 6522842627

Certificate GIA 6522842627

Diamond specifications and retailer prices

From £422 GBP
As of October 31, 2026
Save £375 GBP (47%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £797 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.4ct lab-grown round diamond

This 0.4ct lab-grown round sits in the sub-half-carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by GIA 6522842627. Listed at 3 retailers as of October 29, 2026, with prices from £422 to £797, a £375 spread on the same certified stone. MOH London lists it at £797. 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
H
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6522842627
Dimensions4.65 × 4.61 × 2.92 mm
L/W Ratio1.01
Top View
4.65 mm4.61 mm0.40 ctH / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6522842627
Side View
Table 59.0%CrownGirdlePavilionCulet: NoneDepth 63.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £797 GBP|Low: £406 GBP|High: £815 GBP|Avg: £581 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
October 31, 2026
Retailer 2£422 GBP
Retailer 3£530 GBP
Retailer 4£609 GBP
MOH London£797 GBP

40 data points across 4 retailers

3 retailers£422 GBP to £797 GBP

B
Cheapest Retailer
-
£422 GBP
B
Retailer 2
-
£530 GBP
€676 EUR
View
Most Expensive
B
MOH London
E0B86D975 · Oct 29
£797 GBP
View
2 more retailers have this diamond
Prices start from £422 GBPSave up to £375 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
£422 GBP