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0.55ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 3455627117

Certificate GIA 3455627117

Diamond specifications and retailer prices

From £218 GBP
As of November 5, 2026
Save £303 GBP (58%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £521 GBP at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

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 3455627117. Listed at 4 retailers as of November 5, 2026, with prices from £218 to £521, a £303 spread on the same certified stone. 77 Diamonds lists it at £521. 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
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 3455627117
Dimensions5.22 × 5.25 × 3.26 mm
L/W Ratio1.01
Top View
5.22 mm5.25 mm0.55 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3455627117
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £521 GBP|Low: £218 GBP|High: £529 GBP|Avg: £411 GBP|-0.2%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 2£218 GBP
Retailer 4£416 GBP
Retailer 3£482 GBP
77 Diamonds£521 GBP

44 data points across 4 retailers

4 retailers£218 GBP to £521 GBP

A
Cheapest Retailer
-
£218 GBP
B+
Retailer 2
-
£416 GBP
View
B+
Retailer 3
-
£482 GBP
View
Most Expensive
B+
77 Diamonds
RBCP8RUPKXZJ · Nov 5
£521 GBP
View
3 more retailers have this diamond
Prices start from £218 GBPSave up to £303 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
£218 GBP