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Marquise|Lab Grown

0.31ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • FA7-83-555

Diamond specifications and retailer prices

From £133 GBP
$178 USD
As of October 30, 2026
Save £396 GBP (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £529 GBP at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 0.31ct lab-grown marquise diamond

This 0.31ct lab-grown marquise sits in the sub-half-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade. Listed at 4 retailers as of October 30, 2026, with prices from £133 to £529, a £396 spread on the same certified stone. NZ Jewellers lists it at £529. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.31
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading Lab
CertificateFA7-83-555
Dimensions7.24 × 3.49 × 2.11 mm
L/W Ratio2.07
Top View
7.24 mm3.49 mm0.31 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateFA7-83-555
Side View
Table 61.4%CrownGirdlePavilionCuletDepth 60.6%

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: Oct 30
Current: £529 GBP|Low: £128 GBP|High: £529 GBP|Avg: £231 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 8, 2026
Retailer 2£133 GBP
Retailer 4£154 GBP
Retailer 3£164 GBP
NZ Jewellers£529 GBP

6 data points across 4 retailers

4 retailers£133 GBP to £529 GBP

B+
Cheapest Retailer
-
£133 GBP
$178 USD
B
Retailer 2
-
£154 GBP
$206 USD
View
B
Retailer 3
-
£164 GBP
$220 USD
View
Most Expensive
C
NZ Jewellers
5ef22220-ca63-4aff-bfe8-321664e30d86 · Oct 31
£529 GBP
$709 USD
View
3 more retailers have this diamond
Prices start from £133 GBPSave up to £396 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+
0.31ct Marquise
£133 GBP