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Marquise|Lab Grown

0.50ct F SI1 Marquise Lab Grown Diamond

F/SI1 • 43762C2D01

Diamond specifications and retailer prices

From £69 GBP
$92 USD
As of November 2, 2026
Save £205 GBP (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £273 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). Listed at 4 retailers as of October 31, 2026, with prices from £69 to £273, a £205 spread on the same certified stone. NZ Jewellers lists it at £273. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
F
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading Lab
Certificate43762C2D01
Dimensions8.20 × 4.09 × 2.59 mm
L/W Ratio2.00
Top View
8.20 mm4.09 mm0.50 ctF / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
Certificate43762C2D01
Side View
Table 60.0%CrownGirdlePavilionCulet: NoneDepth 63.3%

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: £273 GBP|Low: £66 GBP|High: £273 GBP|Avg: £121 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
October 8, 2026
Retailer 2£69 GBP
Retailer 4£80 GBP
Retailer 3£91 GBP
NZ Jewellers£273 GBP

6 data points across 4 retailers

4 retailers£69 GBP to £273 GBP

B+
Cheapest Retailer
-
£69 GBP
$92 USD
B+
Retailer 2
-
£80 GBP
$107 USD
View
B+
Retailer 3
-
£91 GBP
$122 USD
View
Most Expensive
C
NZ Jewellers
3582d38b-1ea9-40e3-973b-8dc57fc53db2 · Oct 31
£273 GBP
$367 USD
View
3 more retailers have this diamond
Prices start from £69 GBPSave up to £205 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
£69 GBP