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Round|Natural|GIA

0.55ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 6442418425

Certificate GIA 6442418425

Diamond specifications and retailer prices

From £542 GBP
As of November 6, 2026
Save £1,490 GBP (73%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,031 GBP at NZ Jewellers · As of November 4, 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 6442418425. Listed at 18 retailers as of November 4, 2026, with prices from £542 to £2,031, a £1,490 spread on the same certified stone. NZ Jewellers lists it at £2,031. 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 angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6442418425
Dimensions5.29 × 5.27 × 3.22 mm
L/W Ratio1.00
Top View
5.29 mm5.27 mm0.55 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6442418425
Side View
Table 59.0%Crown 36°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.9%

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 6
Current: £664 GBP|Low: £451 GBP|High: £1,200 GBP|Avg: £780 GBP|+4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5£542 GBP
Retailer 3£575 GBP
Retailer 1£664 GBP
Retailer 2£907 GBP
Retailer 4£1,186 GBP

40 data points across 5 retailers

18 retailers£542 GBP to £2,031 GBP

A
Cheapest Retailer
-
£542 GBP
Final sale: no returns
A
Retailer 2
-
£575 GBP
View
Retailer 3
-
£576 GBP
View
Price last confirmed 28 days ago
Retailer 4
-
£586 GBP
View
Price last confirmed 8 days ago
A
Retailer 5
-
£586 GBP
View
A
Retailer 6
-
£588 GBP
View
A
Retailer 7
-
£595 GBP
View
A
Retailer 8
-
£610 GBP
View
B+
Retailer 9
-
£664 GBP
View
B+
Retailer 10
-
£665 GBP
View
B+
Retailer 11
-
£677 GBP
View
B+
Retailer 12
-
£695 GBP
View
B+
Retailer 13
-
£695 GBP
View
B+
Retailer 14
-
£717 GBP
View
B+
Retailer 15
-
£907 GBP
View
B
Retailer 16
-
£1,186 GBP
View
B
Retailer 17
-
£1,499 GBP
View
Most Expensive
B
NZ Jewellers
a68b8512-276b-40bd-868d-3ee1a7a14f04 · Nov 4
£2,031 GBP
$2,719 USD
View
17 more retailers have this diamond
Prices start from £542 GBPSave up to £1,490 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
£542 GBP