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0.55ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 5543616345

Certificate GIA 5543616345

Diamond specifications and retailer prices

From £355 GBP
As of November 5, 2026
Save £1,024 GBP (74%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,379 GBP at Diamond Exchange Canada · As of November 5, 2026
View at Diamond Exchange Canada

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5543616345. Listed at 14 retailers as of November 5, 2026, with prices from £355 to £1,379, a £1,024 spread on the same certified stone. Diamond Exchange Canada lists it at £1,379. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5543616345
Dimensions5.25 × 5.23 × 3.25 mm
L/W Ratio1.00
Top View
5.25 mm5.23 mm0.55 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5543616345
Side View
Table 58.0%Crown 36°Girdle: STK-STKPavilion 40.6°Culet: NoneDepth 62.0%

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 5
Current: £1,379 GBP|Low: £314 GBP|High: £1,424 GBP|Avg: £688 GBP|-3.2%
Diamond Exchange Canada
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
November 6, 2026
Retailer 10£355 GBP
Retailer 6£409 GBP
Retailer 3£440 GBP
Retailer 4£461 GBP
Retailer 11£497 GBP
Retailer 7£499 GBP
Retailer 8£584 GBP
Retailer 9£585 GBP
Retailer 2£629 GBP
Retailer 14£643 GBP
Retailer 13£669 GBP
Retailer 5£670 GBP
Retailer 12£1,099 GBP
Diamond Exchange Canada£1,379 GBP

38 data points across 14 retailers

14 retailers£355 GBP to £1,379 GBP

A
Cheapest Retailer
-
£355 GBP
A
Retailer 2
-
£409 GBP
View
A
Retailer 3
-
£440 GBP
View
Final sale: no returns
A
Retailer 4
-
£461 GBP
View
A
Retailer 5
-
£497 GBP
View
A
Retailer 6
-
£499 GBP
View
A
Retailer 7
-
£584 GBP
View
A
Retailer 8
-
£585 GBP
View
A
Retailer 9
-
£629 GBP
View
A
Retailer 10
-
£643 GBP
View
A
Retailer 11
-
£669 GBP
View
B+
Retailer 12
-
£670 GBP
View
B
Retailer 13
-
£1,099 GBP
View
Most Expensive
B
Diamond Exchange Canada
1997641364 · Nov 5
£1,379 GBP
CA$2,577 CAD
View
13 more retailers have this diamond
Prices start from £355 GBPSave up to £1,024 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
£355 GBP