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0.55ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2568551221

Certificate GIA 2568551221

Diamond specifications and retailer prices

From £288 GBP
As of November 4, 2026
Save £649 GBP (69%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £937 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 0.55ct natural round diamond

This 0.55ct natural round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2568551221. Listed at 11 retailers as of November 4, 2026, with prices from £288 to £937, a £649 spread on the same certified stone. MOH London lists it at £937. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2568551221
Dimensions5.23 × 5.26 × 3.28 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal
Top View
5.23 mm5.26 mm0.55 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2568551221
Side View
Table 57.0%Crown 36.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.5%

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 4
Current: £937 GBP|Low: £288 GBP|High: £940 GBP|Avg: £488 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8£288 GBP
Retailer 2£305 GBP
Retailer 6£330 GBP
Retailer 9£351 GBP
Retailer 3£434 GBP
Retailer 10£435 GBP
Retailer 4£505 GBP
Retailer 7£534 GBP
Retailer 5£560 GBP
MOH London£937 GBP

15 data points across 10 retailers

11 retailers£288 GBP to £937 GBP

A
Cheapest Retailer
-
£288 GBP
Final sale: no returns
A
Retailer 2
-
£305 GBP
View
A
Retailer 3
-
£330 GBP
View
A
Retailer 4
-
£351 GBP
View
A
Retailer 5
-
£409 GBP
View
A
Retailer 6
-
£434 GBP
View
A
Retailer 7
-
£435 GBP
View
A
Retailer 8
-
£505 GBP
View
A
Retailer 9
-
£534 GBP
View
B+
Retailer 10
-
£560 GBP
View
Most Expensive
B
MOH London
E91F7029D · Nov 4
£937 GBP
View
10 more retailers have this diamond
Prices start from £288 GBPSave up to £649 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
£288 GBP