Marquise|Natural|GIA

0.50ct F SI1 Marquise Natural Diamond

ID • F/SI1 • GIA 5563168916

Certificate GIA 5563168916

Diamond specifications and retailer prices

From £436 GBP
As of November 6, 2026
Save £635 GBP (59%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,837 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.5ct natural marquise diamond

This 0.5ct natural 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 stated by the retailer rather than the lab and certified by GIA 5563168916. Listed at 14 retailers as of November 4, 2026, with a 146% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5563168916
Dimensions8.48 × 4.06 × 2.43 mm
L/W Ratio2.09
Girdle conditionVery Thick
Top View
8.48 mm4.06 mm0.50 ctF / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5563168916
Side View
Table 63.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 59.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £1,837 GBP|Low: £436 GBP|High: £1,837 GBP|Avg: £799 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 2£436 GBP
Retailer 4£456 GBP
Retailer 3£534 GBP
Retailer 5£595 GBP
Retailer 12£598 GBP
Retailer 14£664 GBP
Retailer 13£684 GBP
Retailer 8£693 GBP
Retailer 7£715 GBP
Retailer 11£826 GBP
Retailer 9£904 GBP
Retailer 6£983 GBP
Retailer 10£1,071 GBP
NZ Jewellers£1,837 GBP

24 data points across 14 retailers

14 retailers£436 GBP to £1,071 GBP

A
Cheapest Retailer
-
£436 GBP
A
Retailer 2
-
£456 GBP
View
Final sale: no returns
Retailer 3
-
£534 GBP
View
Price last confirmed 10 days ago
B+
Retailer 4
-
£595 GBP
View
B+
Retailer 5
-
£598 GBP
View
B+
Retailer 6
-
£664 GBP
View
B+
Retailer 7
-
£684 GBP
View
B+
Retailer 8
-
£693 GBP
View
B+
Retailer 9
-
£715 GBP
View
B+
Retailer 10
-
£826 GBP
View
B
Retailer 11
-
£904 GBP
View
Retailer 12
-
£983 GBP
View
Price last confirmed 40 days ago
B
Retailer 13
-
£1,071 GBP
View
Most Expensive
NZ Jewellers
6064f27c-fec8-44f6-b154-282718a092be · Nov 5
£1,837 GBP
$2,459 USD
View
Price under review
13 more retailers have this diamond
Prices start from £436 GBPSave up to £635 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.

A
0.50ct Marquise
£436 GBP