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Marquise|Lab Grown|UNKNOWN

0.40ct G VVS2 Marquise Lab Grown Diamond

ID • G/VVS2 • UNKNOWN 618284907

Certificate UNKNOWN 618284907

Diamond specifications and retailer prices

From £193 GBP
$258 USD
As of October 30, 2026
Save £574 GBP (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £766 GBP at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 0.4ct lab-grown marquise diamond

This 0.4ct lab-grown marquise sits in the sub-half-carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by UNKNOWN 618284907. Listed at 5 retailers as of October 30, 2026, with prices from £193 to £766, a £574 spread on the same certified stone. NZ Jewellers lists it at £766. 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
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 618284907
Dimensions7.82 × 3.75 × 2.39 mm
L/W Ratio2.09
Top View
7.82 mm3.75 mm0.40 ctG / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateUNKNOWN 618284907
Side View
Table 55.4%CrownGirdlePavilionCuletDepth 63.7%

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: Oct 30
Current: £766 GBP|Low: £184 GBP|High: £766 GBP|Avg: £348 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 8, 2026
Retailer 2£193 GBP
Retailer 5£223 GBP
Retailer 3£238 GBP
Retailer 4£398 GBP
NZ Jewellers£766 GBP

6 data points across 5 retailers

5 retailers£193 GBP to £766 GBP

B+
Cheapest Retailer
-
£193 GBP
$258 USD
B
Retailer 2
-
£223 GBP
$299 USD
View
B
Retailer 3
-
£238 GBP
$319 USD
View
B
Retailer 4
-
£398 GBP
$533 USD
View
Most Expensive
C
NZ Jewellers
4cc08523-1521-4802-a8b8-bb99902d50d0 · Oct 31
£766 GBP
$1,027 USD
View
4 more retailers have this diamond
Prices start from £193 GBPSave up to £574 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 Marquise
£193 GBP