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Round|Lab Grown|GIA

0.40ct G VS1 Round Lab Grown Diamond

EX • G/VS1 • GIA 6305483281

Certificate GIA 6305483281

Diamond specifications and retailer prices

From £490 GBP
As of October 31, 2026
Save £414 GBP (46%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £904 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 6305483281. Listed at 3 retailers as of October 29, 2026, with prices from £490 to £904, a £414 spread on the same certified stone. MOH London lists it at £904. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.40
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6305483281
Dimensions4.65 × 4.71 × 2.95 mm
L/W Ratio1.01
Top View
4.65 mm4.71 mm0.40 ctG / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6305483281
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 63.1%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: £904 GBP|Low: £470 GBP|High: £967 GBP|Avg: £657 GBP|-6.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
October 31, 2026
Retailer 2£490 GBP
Retailer 3£509 GBP
Retailer 4£675 GBP
MOH London£904 GBP

18 data points across 4 retailers

3 retailers£490 GBP to £904 GBP

B
Cheapest Retailer
-
£490 GBP
B
Retailer 2
-
£509 GBP
€650 EUR
View
Most Expensive
B
MOH London
775C7CF09 · Oct 29
£904 GBP
View
2 more retailers have this diamond
Prices start from £490 GBPSave up to £414 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
£490 GBP