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Marquise|Lab Grown|UNKNOWN

0.51ct G VS2 Marquise Lab Grown Diamond

ID • G/VS2 • UNKNOWN 614116431

Certificate UNKNOWN 614116431

Diamond specifications and retailer prices

From £261 GBP
As of November 4, 2026
Save £259 GBP (50%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,041 GBP at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.51ct lab-grown marquise diamond

This 0.51ct lab-grown marquise sits in the half to three-quarter carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by UNKNOWN 614116431. Listed at 5 retailers as of November 4, 2026, with a 99% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabUNKNOWN
CertificateUNKNOWN 614116431
Dimensions8.16 × 4.25 × 2.49 mm
L/W Ratio1.92
Top View
8.16 mm4.25 mm0.51 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateUNKNOWN 614116431
Side View
Table 56.9%CrownGirdlePavilionCuletDepth 58.7%

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: Nov 4
Current: £1,041 GBP|Low: £250 GBP|High: £1,041 GBP|Avg: £468 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 8, 2026
Retailer 2£261 GBP
Retailer 5£303 GBP
Retailer 3£324 GBP
Retailer 4£519 GBP
NZ Jewellers£1,041 GBP

6 data points across 5 retailers

5 retailers£261 GBP to £519 GBP

B+
Cheapest Retailer
-
£261 GBP
B
Retailer 2
-
£303 GBP
View
B
Retailer 3
-
£324 GBP
View
B
Retailer 4
-
£519 GBP
View
Most Expensive
NZ Jewellers
a9ab7a46-9fc0-45ca-a23d-9730d6ea2d8c · Nov 4
£1,041 GBP
$1,401 USD
View
Price under review
4 more retailers have this diamond
Prices start from £261 GBPSave up to £259 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+
0.51ct Marquise
£261 GBP