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0.55ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2566238867

Certificate GIA 2566238867

Diamond specifications and retailer prices

From €517 EUR
As of November 6, 2026
Save €752 EUR (59%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,268 EUR 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566238867. Listed at 14 retailers as of November 4, 2026, with prices from €517 to €1,268, a €752 spread on the same certified stone. MOH London lists it at €1,268. 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 angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2566238867
Dimensions5.22 × 5.25 × 3.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather
Top View
5.22 mm5.25 mm0.55 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566238867
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 61.9%

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: €1,268 EUR|Low: €513 EUR|High: €1,276 EUR|Avg: €783 EUR|-0.6%
MOH London
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 2€517 EUR
Retailer 13€524 EUR
Retailer 4€640 EUR
Retailer 5€643 EUR
Retailer 14€657 EUR
Retailer 11€698 EUR
Retailer 8€726 EUR
Retailer 9€829 EUR
Retailer 10€837 EUR
Retailer 7€892 EUR
Retailer 6€914 EUR
Retailer 3€946 EUR
Retailer 12€981 EUR
MOH London€1,268 EUR

23 data points across 14 retailers

14 retailers€517 EUR to €1,268 EUR

A
Cheapest Retailer
-
€517 EUR
A
Retailer 2
-
€524 EUR
View
A
Retailer 3
-
€640 EUR
View
Final sale: no returns
Retailer 4
-
€643 EUR
View
Price last confirmed 15 days ago
A
Retailer 5
-
€652 EUR
View
Retailer 6
-
€657 EUR
View
Price last confirmed 15 days ago
A
Retailer 7
-
€698 EUR
View
A
Retailer 8
-
€726 EUR
View
B+
Retailer 9
-
€829 EUR
View
B+
Retailer 10
-
€837 EUR
View
B+
Retailer 11
-
€892 EUR
View
B+
Retailer 12
-
€946 EUR
View
B+
Retailer 13
-
€981 EUR
View
Most Expensive
B
MOH London
864694A57 · Nov 4
€1,268 EUR
£1,121 GBP
View
13 more retailers have this diamond
Prices start from €517 EURSave up to €752 EUR

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
€517 EUR