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Marquise|Lab Grown

0.50ct F SI1 Marquise Lab Grown Diamond

GD • F/SI1 • FA8-749-749

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 standard 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. 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
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading Lab
CertificateFA8-749-749
Dimensions7.85 × 4.10 × 2.74 mm
L/W Ratio1.91
Top View
7.85 mm4.10 mm0.50 ctF / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateFA8-749-749
Side View
Table 62.7%CrownGirdlePavilionCuletDepth 66.8%

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
D
NZ Jewellers
0a0f5963-c58c-4744-badb-9da667dc9cba · 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