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Marquise|Natural|GIA

0.50ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 3565742390

Certificate GIA 3565742390

Diamond specifications and retailer prices

From £339 GBP
₹43,289 INR
As of November 2, 2026
Save £1,064 GBP (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,402 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 3565742390. Listed at 17 retailers as of October 30, 2026, with prices from £339 to £1,402, a £1,064 spread on the same certified stone. NZ Jewellers lists it at £1,402. 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
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 3565742390
Dimensions8.71 × 3.91 × 2.41 mm
L/W Ratio2.23
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
8.71 mm3.91 mm0.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 3565742390
Side View
Table 58.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 61.7%

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 2
Current: £1,402 GBP|Low: £339 GBP|High: £1,402 GBP|Avg: £575 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
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 13£339 GBP
Retailer 17£409 GBP
Retailer 2£429 GBP
Retailer 4£443 GBP
Retailer 10£471 GBP
Retailer 9£481 GBP
Retailer 12£508 GBP
Retailer 14£540 GBP
Retailer 16£541 GBP
Retailer 8£544 GBP
Retailer 5£553 GBP
Retailer 15£555 GBP
Retailer 6£589 GBP
Retailer 3£614 GBP
Retailer 7£690 GBP
Retailer 11£1,016 GBP
NZ Jewellers£1,402 GBP

6 data points across 17 retailers

17 retailers£339 GBP to £1,402 GBP

A
Cheapest Retailer
-
£339 GBP
₹43,289 INR
A
Retailer 2
-
£409 GBP
$549 USD
View
Final sale: no returns
A
Retailer 3
-
£429 GBP
A$885 AUD
View
A
Retailer 4
-
£443 GBP
$595 USD
View
A
Retailer 5
-
£471 GBP
$632 USD
View
A
Retailer 6
-
£481 GBP
$646 USD
View
A
Retailer 7
-
£508 GBP
$682 USD
View
A
Retailer 8
-
£540 GBP
View
A
Retailer 9
-
£541 GBP
View
B+
Retailer 10
-
£544 GBP
$730 USD
View
B+
Retailer 11
-
£553 GBP
$742 USD
View
B+
Retailer 12
-
£555 GBP
View
B+
Retailer 13
-
£589 GBP
$790 USD
View
B+
Retailer 14
-
£614 GBP
$824 USD
View
B
Retailer 15
-
£690 GBP
ZAR 14,968 ZAR
View
B
Retailer 16
-
£1,016 GBP
View
Most Expensive
B
NZ Jewellers
731255cf-4b51-469e-9388-acddc04d1c36 · Oct 30
£1,402 GBP
$1,882 USD
View
16 more retailers have this diamond
Prices start from £339 GBPSave up to £1,064 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
£339 GBP