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Round|Natural|GIA

0.55ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6261056903

Certificate GIA 6261056903

Diamond specifications and retailer prices

From £442 GBP
As of November 4, 2026
Save £690 GBP (61%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,539 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6261056903. Listed at 10 retailers as of November 4, 2026, with a 156% 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6261056903
Dimensions5.24 × 5.23 × 3.25 mm
L/W Ratio1.00
Star length55%
Lower girdle80%
Top View
5.24 mm5.23 mm0.55 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6261056903
Side View
Table 59.0%Crown 35°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 62.1%

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 4
Current: £1,539 GBP|Low: £442 GBP|High: £1,539 GBP|Avg: £696 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4£442 GBP
Retailer 7£445 GBP
Retailer 6£479 GBP
Retailer 9£479 GBP
Retailer 8£513 GBP
Retailer 10£559 GBP
Retailer 2£596 GBP
Retailer 3£665 GBP
Retailer 5£1,132 GBP
NZ Jewellers£1,539 GBP

40 data points across 10 retailers

10 retailers£442 GBP to £1,132 GBP

A
Cheapest Retailer
-
£442 GBP
B+
Retailer 2
-
£445 GBP
View
B+
Retailer 3
-
£463 GBP
View
Retailer 4
-
£479 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£479 GBP
View
B+
Retailer 6
-
£513 GBP
View
B
Retailer 7
-
£596 GBP
View
B
Retailer 8
-
£665 GBP
View
B
Retailer 9
-
£1,132 GBP
View
Most Expensive
NZ Jewellers
d83518d9-3efc-4aa5-a6ba-12c5ca8b0125 · Nov 4
£1,539 GBP
$2,072 USD
View
Price under review
9 more retailers have this diamond
Prices start from £442 GBPSave up to £690 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
£442 GBP