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Marquise|Lab Grown

0.50ct F SI1 Marquise Lab Grown Diamond

EX • F/SI1 • FA7-192-192

Diamond specifications and retailer prices

From £133 GBP
$179 USD
As of November 2, 2026
Save £399 GBP (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £532 GBP at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 0.5ct lab-grown marquise diamond

This 0.5ct lab-grown marquise sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade. Listed at 4 retailers as of October 31, 2026, with prices from £133 to £532, a £399 spread on the same certified stone. NZ Jewellers lists it at £532. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.50
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading Lab
CertificateFA7-192-192
Dimensions8.26 × 4.19 × 2.58 mm
L/W Ratio1.97
Top View
8.26 mm4.19 mm0.50 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateFA7-192-192
Side View
Table 57.7%CrownGirdlePavilionCuletDepth 61.6%

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: Nov 2
Current: £532 GBP|Low: £128 GBP|High: £532 GBP|Avg: £232 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 8, 2026
Retailer 2£133 GBP
Retailer 4£155 GBP
Retailer 3£165 GBP
NZ Jewellers£532 GBP

6 data points across 4 retailers

4 retailers£133 GBP to £532 GBP

B+
Cheapest Retailer
-
£133 GBP
$179 USD
B+
Retailer 2
-
£155 GBP
$208 USD
View
B
Retailer 3
-
£165 GBP
$222 USD
View
Most Expensive
C
NZ Jewellers
68a16b85-c7c6-45da-b233-c2bc29593f96 · Oct 31
£532 GBP
$714 USD
View
3 more retailers have this diamond
Prices start from £133 GBPSave up to £399 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+
0.50ct Marquise
£133 GBP