Round|Natural|GIA

0.55ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2517373422

Certificate GIA 2517373422

Diamond specifications and retailer prices

From £515 GBP
$691 USD
As of November 2, 2026
Save £774 GBP (60%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,752 GBP at NZ Jewellers · As of September 28, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2517373422. Listed at 23 retailers as of October 31, 2026, with a 150% 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2517373422
Dimensions5.26 × 5.23 × 3.29 mm
L/W Ratio1.01
Top View
5.26 mm5.23 mm0.55 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2517373422
Side View
Table 56.0%Crown 36.5°Girdle: MediumPavilion 41°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
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 2
Current: £662 GBP|Low: £472 GBP|High: £1,044 GBP|Avg: £687 GBP|+3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 10£515 GBP
Retailer 2£559 GBP
Retailer 8£559 GBP
Retailer 11£568 GBP
Retailer 3£641 GBP
Retailer 4£657 GBP
Retailer 1£662 GBP
Retailer 9£689 GBP
Retailer 6£721 GBP
Retailer 12£840 GBP
Retailer 7£862 GBP
Retailer 5£1,023 GBP

45 data points across 12 retailers

23 retailers£515 GBP to £1,289 GBP

A
Cheapest Retailer
-
£515 GBP
$691 USD
Final sale: no returns
A
Retailer 2
-
£524 GBP
A$1,082 AUD
View
A
Retailer 3
-
£559 GBP
$750 USD
View
Retailer 4
-
£559 GBP
$750 USD
View
Price last confirmed 18 days ago
Retailer 5
-
£559 GBP
$750 USD
View
Price last confirmed 39 days ago
Retailer 6
-
£559 GBP
$750 USD
View
Price last confirmed 26 days ago
A
Retailer 7
-
£568 GBP
$762 USD
View
Retailer 8
-
£581 GBP
$779 USD
View
Price last confirmed 18 days ago
Retailer 9
-
£620 GBP
$832 USD
View
Price last confirmed 64 days ago
B+
Retailer 10
-
£641 GBP
$860 USD
View
Retailer 11
-
£645 GBP
$865 USD
View
Price last confirmed 41 days ago
Retailer 12
-
£645 GBP
$865 USD
View
Price last confirmed 24 days ago
B+
Retailer 13
-
£657 GBP
$882 USD
View
B+
Retailer 14
-
£662 GBP
View
B+
Retailer 15
-
£689 GBP
$925 USD
View
B+
Retailer 16
-
£721 GBP
€922 EUR
View
Retailer 17
-
£840 GBP
A$1,735 AUD
View
Price last confirmed 30 days ago
B+
Retailer 18
-
£862 GBP
ZAR 18,698 ZAR
View
B
Retailer 19
-
£1,023 GBP
View
B
Retailer 20
-
£1,289 GBP
View
Retailer 21
-
£1,684 GBP
$2,260 USD
View
Price last confirmed 62 days ago
Retailer 22
-
£1,752 GBP
$2,351 USD
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
a22fb947-7c94-4a90-bcf0-cc63d1b4df2d · Sep 28
£1,752 GBP
$2,351 USD
View
Price last confirmed 35 days ago
22 more retailers have this diamond
Prices start from £515 GBPSave up to £774 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
£515 GBP