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Round|Natural|GIA

0.55ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6511419240

Certificate GIA 6511419240

Diamond specifications and retailer prices

From €962 EUR
As of November 4, 2026
Save €1,249 EUR (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €2,953 EUR 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 6511419240. Listed at 22 retailers as of November 4, 2026, with a 130% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6511419240
Dimensions5.36 × 5.32 × 3.19 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.36 mm5.32 mm0.55 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6511419240
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €1,328 EUR|Low: €844 EUR|High: €2,244 EUR|Avg: €1,462 EUR|+3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 8€962 EUR
Retailer 10€1,013 EUR
Retailer 3€1,051 EUR
Retailer 12€1,140 EUR
Retailer 9€1,203 EUR
Retailer 1€1,328 EUR
Retailer 4€1,372 EUR
Retailer 5€1,563 EUR
Retailer 11€1,580 EUR
Retailer 6€1,868 EUR
Retailer 2€1,975 EUR
Retailer 7€2,211 EUR

45 data points across 12 retailers

22 retailers€962 EUR to €2,211 EUR

B+
Cheapest Retailer
-
€962 EUR
B+
Retailer 2
-
€1,013 EUR
View
Final sale: no returns
B+
Retailer 3
-
€1,047 EUR
View
B+
Retailer 4
-
€1,051 EUR
View
B+
Retailer 5
-
€1,097 EUR
View
Retailer 6
-
€1,097 EUR
View
Price last confirmed 8 days ago
B+
Retailer 7
-
€1,140 EUR
View
B
Retailer 8
-
€1,203 EUR
View
B
Retailer 9
-
€1,266 EUR
View
B
Retailer 10
-
€1,310 EUR
View
B
Retailer 11
-
€1,310 EUR
View
B
Retailer 12
-
€1,328 EUR
View
B
Retailer 13
-
€1,354 EUR
View
B
Retailer 14
-
€1,372 EUR
View
B
Retailer 15
-
€1,523 EUR
View
B
Retailer 16
-
€1,563 EUR
View
Retailer 17
-
€1,580 EUR
View
Price last confirmed 32 days ago
B
Retailer 18
-
€1,868 EUR
View
B
Retailer 19
-
€1,975 EUR
View
B
Retailer 20
-
€2,124 EUR
View
B
Retailer 21
-
€2,211 EUR
View
Most Expensive
NZ Jewellers
fc518b71-e872-449c-a74e-39cfca248c75 · Nov 4
€2,953 EUR
$3,315 USD
View
Price under review
21 more retailers have this diamond
Prices start from €962 EURSave up to €1,249 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.

B+
0.55ct Round
€962 EUR