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Round|Natural|GIA

0.55ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 2566197610

Certificate GIA 2566197610

Diamond specifications and retailer prices

From £373 GBP
As of November 6, 2026
Save £750 GBP (67%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,718 GBP at NZ Jewellers · As of September 24, 2026
View at NZ Jewellers

About this 0.55ct natural round diamond

This 0.55ct natural round sits in the half to three-quarter carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566197610. Listed at 15 retailers as of November 4, 2026, with a 201% 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2566197610
Dimensions5.19 × 5.23 × 3.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.19 mm5.23 mm0.55 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566197610
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.4%

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: £373 GBP|Low: £373 GBP|High: £1,221 GBP|Avg: £598 GBP|-9.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1£373 GBP
Retailer 5£421 GBP
Retailer 3£436 GBP
Retailer 7£449 GBP
Retailer 11£492 GBP
Retailer 2£528 GBP
Retailer 8£582 GBP
Retailer 4£591 GBP
Retailer 9£647 GBP
Retailer 10£678 GBP
Retailer 6£1,123 GBP

36 data points across 11 retailers

15 retailers£373 GBP to £1,123 GBP

A
Cheapest Retailer
-
£373 GBP
A
Retailer 2
-
£421 GBP
View
Retailer 3
-
£436 GBP
View
Price last confirmed 7 days ago
A
Retailer 4
-
£449 GBP
View
Final sale: no returns
Retailer 5
-
£492 GBP
View
Price last confirmed 8 days ago
Retailer 6
-
£528 GBP
View
Price last confirmed 10 days ago
Retailer 7
-
£548 GBP
View
Price last confirmed 29 days ago
Retailer 8
-
£569 GBP
View
Price last confirmed 38 days ago
A
Retailer 9
-
£582 GBP
View
A
Retailer 10
-
£591 GBP
View
Retailer 11
-
£632 GBP
View
Price last confirmed 28 days ago
B+
Retailer 12
-
£647 GBP
View
B+
Retailer 13
-
£678 GBP
View
B
Retailer 14
-
£1,123 GBP
View
Most Expensive
NZ Jewellers
d066c248-5048-4c7a-9907-7108ed5eaced · Sep 24
£1,718 GBP
$2,299 USD
View
Price last confirmed 43 days ago
14 more retailers have this diamond
Prices start from £373 GBPSave up to £750 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 Round
£373 GBP