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Marquise|Natural|GIA

0.50ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 6555767334

Certificate GIA 6555767334

Diamond specifications and retailer prices

From £477 GBP
HK$5,000 HKD
As of November 1, 2026
Save £696 GBP (59%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,007 GBP at NZ Jewellers · As of October 30, 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 6555767334. Listed at 20 retailers as of November 1, 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle37.5°
OriginNatural
Grading LabGIA
CertificateGIA 6555767334
Dimensions8.92 × 4.18 × 2.37 mm
L/W Ratio2.13
Key to symbols
Feather
Top View
8.92 mm4.18 mm0.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555767334
Side View
Table 59.0%Crown 32.2°Girdle: STK-VTKPavilion 37.5°Culet: NoneDepth 56.6%

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: £2,007 GBP|Low: £458 GBP|High: £2,007 GBP|Avg: £802 GBP|+6.7%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 3£477 GBP
Retailer 10£571 GBP
Retailer 4£590 GBP
Retailer 16£640 GBP
Retailer 18£640 GBP
Retailer 9£648 GBP
Retailer 8£663 GBP
Retailer 17£665 GBP
Retailer 5£709 GBP
Retailer 15£738 GBP
Retailer 7£739 GBP
Retailer 6£760 GBP
Retailer 12£765 GBP
Retailer 11£786 GBP
Retailer 13£903 GBP
Retailer 14£988 GBP
Retailer 2£1,173 GBP
NZ Jewellers£2,007 GBP

24 data points across 18 retailers

20 retailers£477 GBP to £1,173 GBP

A
Cheapest Retailer
-
£477 GBP
HK$5,000 HKD
Retailer 2
-
£571 GBP
$766 USD
View
Price last confirmed 15 days ago
B+
Retailer 3
-
£590 GBP
$792 USD
View
Final sale: no returns
B+
Retailer 4
-
£633 GBP
$850 USD
View
B+
Retailer 5
-
£640 GBP
$859 USD
View
B+
Retailer 6
-
£640 GBP
$859 USD
View
B+
Retailer 7
-
£648 GBP
$870 USD
View
B+
Retailer 8
-
£663 GBP
SGD 1,203 SGD
View
B+
Retailer 9
-
£665 GBP
$892 USD
View
B+
Retailer 10
-
£709 GBP
$951 USD
View
B+
Retailer 11
-
£738 GBP
$991 USD
View
B+
Retailer 12
-
£739 GBP
$992 USD
View
B+
Retailer 13
-
£760 GBP
$1,020 USD
View
B+
Retailer 14
-
£765 GBP
View
B+
Retailer 15
-
£786 GBP
View
B
Retailer 16
-
£903 GBP
€1,154 EUR
View
Retailer 17
-
£962 GBP
A$1,987 AUD
View
Price last confirmed 28 days ago
B
Retailer 18
-
£988 GBP
ZAR 21,417 ZAR
View
B
Retailer 19
-
£1,173 GBP
View
Most Expensive
NZ Jewellers
0404b563-645a-408c-9631-26567cf1751a · Oct 30
£2,007 GBP
$2,693 USD
View
Price under review
19 more retailers have this diamond
Prices start from £477 GBPSave up to £696 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
£477 GBP