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Marquise|Natural|GIA

0.50ct F SI1 Marquise Natural Diamond

ID • F/SI1 • GIA 3555596624

Certificate GIA 3555596624

Diamond specifications and retailer prices

From £458 GBP
HK$4,800 HKD
As of November 1, 2026
Save £657 GBP (59%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,908 GBP at NZ Jewellers · As of October 17, 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 3555596624. Listed at 17 retailers as of November 1, 2026, with a 143% 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555596624
Dimensions7.47 × 4.16 × 2.79 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
7.47 mm4.16 mm0.50 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3555596624
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 67.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £1,115 GBP|Low: £436 GBP|High: £1,128 GBP|Avg: £691 GBP|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7£458 GBP
Retailer 2£461 GBP
Retailer 5£562 GBP
Retailer 9£609 GBP
Retailer 8£702 GBP
Retailer 3£726 GBP
Retailer 4£734 GBP
Retailer 6£915 GBP
Retailer 1£1,115 GBP

45 data points across 9 retailers

17 retailers£458 GBP to £1,115 GBP

A
Cheapest Retailer
-
£458 GBP
HK$4,800 HKD
A
Retailer 2
-
£461 GBP
₹58,952 INR
View
B+
Retailer 3
-
£562 GBP
$754 USD
View
Final sale: no returns
Retailer 4
-
£609 GBP
$817 USD
View
Price last confirmed 17 days ago
Retailer 5
-
£609 GBP
$817 USD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
£617 GBP
$828 USD
View
Retailer 7
-
£632 GBP
$848 USD
View
Price last confirmed 16 days ago
B+
Retailer 8
-
£641 GBP
SGD 1,163 SGD
View
B+
Retailer 9
-
£702 GBP
$942 USD
View
Retailer 10
-
£702 GBP
$942 USD
View
Price last confirmed 14 days ago
B+
Retailer 11
-
£708 GBP
$949 USD
View
B
Retailer 12
-
£726 GBP
View
B
Retailer 13
-
£734 GBP
$985 USD
View
B
Retailer 14
-
£818 GBP
A$1,688 AUD
View
Retailer 15
-
£915 GBP
A$1,889 AUD
View
Price last confirmed 29 days ago
B
Retailer 16
-
£1,115 GBP
View
Most Expensive
NZ Jewellers
80727a51-1f44-42e9-8571-63f5cecc7f13 · Oct 17
£1,908 GBP
$2,561 USD
View
Price under review
16 more retailers have this diamond
Prices start from £458 GBPSave up to £657 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
£458 GBP