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Marquise|Natural|GIA

0.55ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 6561415160

Certificate GIA 6561415160

Diamond specifications and retailer prices

From £449 GBP
As of November 6, 2026
Save £654 GBP (59%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,891 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.55ct natural marquise diamond

This 0.55ct natural marquise sits in the half to three-quarter carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561415160. Listed at 11 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

0.55
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6561415160
Dimensions8.14 × 4.23 × 2.72 mm
L/W Ratio1.92
Girdle conditionVery Thick
Top View
8.14 mm4.23 mm0.55 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6561415160
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 64.3%

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 6
Current: £449 GBP|Low: £449 GBP|High: £1,116 GBP|Avg: £710 GBP|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1£449 GBP
Retailer 4£538 GBP
Retailer 7£612 GBP
Retailer 2£716 GBP
Retailer 3£718 GBP
Retailer 6£849 GBP
Retailer 5£1,103 GBP

30 data points across 7 retailers

11 retailers£449 GBP to £1,103 GBP

A
Cheapest Retailer
-
£449 GBP
A
Retailer 2
-
£470 GBP
View
Final sale: no returns
A
Retailer 3
-
£538 GBP
View
B+
Retailer 4
-
£612 GBP
View
B+
Retailer 5
-
£681 GBP
View
B+
Retailer 6
-
£702 GBP
View
B+
Retailer 7
-
£716 GBP
View
B+
Retailer 8
-
£718 GBP
View
B+
Retailer 9
-
£849 GBP
View
B
Retailer 10
-
£1,103 GBP
View
Most Expensive
NZ Jewellers
9bbf6544-1ab1-42be-8626-ca1d466e06de · Nov 5
£1,891 GBP
$2,531 USD
View
Price under review
10 more retailers have this diamond
Prices start from £449 GBPSave up to £654 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
0.55ct Marquise
£449 GBP