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Round|Natural|GIA

0.55ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2558408841

Certificate GIA 2558408841

Diamond specifications and retailer prices

From £467 GBP
As of November 6, 2026
Save £1,499 GBP (76%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,967 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2558408841. Listed at 21 retailers as of November 4, 2026, with prices from £467 to £1,967, a £1,499 spread on the same certified stone. NZ Jewellers lists it at £1,967. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2558408841
Dimensions5.28 × 5.30 × 3.25 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal
Top View
5.28 mm5.30 mm0.55 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2558408841
Side View
Table 57.0%Crown 34.5°Girdle: Slightly ThickPavilion 40.8°Culet: NDepth 61.4%

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: £1,967 GBP|Low: £466 GBP|High: £1,967 GBP|Avg: £777 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 2£467 GBP
Retailer 3£476 GBP
Retailer 18£572 GBP
Retailer 12£579 GBP
Retailer 8£583 GBP
Retailer 9£588 GBP
Retailer 7£627 GBP
Retailer 17£631 GBP
Retailer 6£652 GBP
Retailer 14£656 GBP
Retailer 4£724 GBP
Retailer 10£733 GBP
Retailer 16£750 GBP
Retailer 15£751 GBP
Retailer 13£807 GBP
Retailer 11£843 GBP
Retailer 20£889 GBP
Retailer 5£1,019 GBP
Retailer 19£1,147 GBP
NZ Jewellers£1,967 GBP

21 data points across 20 retailers

21 retailers£467 GBP to £1,967 GBP

A
Cheapest Retailer
-
£467 GBP
A
Retailer 2
-
£476 GBP
View
A
Retailer 3
-
£572 GBP
View
A
Retailer 4
-
£579 GBP
View
Final sale: no returns
Retailer 5
-
£583 GBP
View
Price last confirmed 8 days ago
A
Retailer 6
-
£583 GBP
View
Retailer 7
-
£588 GBP
View
Price last confirmed 15 days ago
A
Retailer 8
-
£627 GBP
View
A
Retailer 9
-
£631 GBP
View
A
Retailer 10
-
£652 GBP
View
A
Retailer 11
-
£656 GBP
View
B+
Retailer 12
-
£724 GBP
View
B+
Retailer 13
-
£733 GBP
View
B+
Retailer 14
-
£750 GBP
View
B+
Retailer 15
-
£751 GBP
View
B+
Retailer 16
-
£807 GBP
View
B+
Retailer 17
-
£843 GBP
View
B+
Retailer 18
-
£889 GBP
View
B+
Retailer 19
-
£1,019 GBP
View
B
Retailer 20
-
£1,147 GBP
View
Most Expensive
B
NZ Jewellers
905770cf-109d-4dbb-96ea-e0d56c22b224 · Nov 4
£1,967 GBP
$2,647 USD
View
20 more retailers have this diamond
Prices start from £467 GBPSave up to £1,499 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
£467 GBP