Round|Natural|GIA

0.55ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6551409149

Certificate GIA 6551409149

Diamond specifications and retailer prices

From €544 EUR
As of November 6, 2026
Save €743 EUR (58%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: €2,206 EUR at NZ Jewellers · As of October 17, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6551409149. Listed at 26 retailers as of November 4, 2026, with a 137% 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6551409149
Dimensions5.21 × 5.24 × 3.27 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Crystal
Top View
5.21 mm5.24 mm0.55 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551409149
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.6%

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: €905 EUR|Low: €544 EUR|High: €1,304 EUR|Avg: €908 EUR|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7€544 EUR
Retailer 9€670 EUR
Retailer 6€797 EUR
Retailer 2€833 EUR
Retailer 1€905 EUR
Retailer 3€906 EUR
Retailer 8€1,058 EUR
Retailer 4€1,086 EUR
Retailer 5€1,286 EUR

44 data points across 9 retailers

26 retailers€544 EUR to €1,286 EUR

A
Cheapest Retailer
-
€544 EUR
Final sale: no returns
A
Retailer 2
-
€585 EUR
View
Retailer 3
-
€626 EUR
View
Price last confirmed 26 days ago
Retailer 4
-
€638 EUR
View
Price last confirmed 67 days ago
Retailer 5
-
€638 EUR
View
Price last confirmed 21 days ago
B+
Retailer 6
-
€646 EUR
View
B+
Retailer 7
-
€656 EUR
View
B+
Retailer 8
-
€662 EUR
View
B+
Retailer 9
-
€670 EUR
View
B+
Retailer 10
-
€734 EUR
View
Retailer 11
-
€735 EUR
View
Price last confirmed 45 days ago
B+
Retailer 12
-
€785 EUR
View
B+
Retailer 13
-
€788 EUR
View
B+
Retailer 14
-
€788 EUR
View
B+
Retailer 15
-
€797 EUR
View
B+
Retailer 16
-
€815 EUR
View
B
Retailer 17
-
€833 EUR
View
B
Retailer 18
-
€861 EUR
View
B+
Retailer 19
-
€905 EUR
View
B+
Retailer 20
-
€906 EUR
View
B
Retailer 21
-
€986 EUR
View
Retailer 22
-
€1,058 EUR
View
Price last confirmed 33 days ago
B
Retailer 23
-
€1,086 EUR
View
B
Retailer 24
-
€1,129 EUR
View
B
Retailer 25
-
€1,286 EUR
View
Most Expensive
NZ Jewellers
9b4a09a1-bca8-48c8-abbe-fa20ccd6310f · Oct 17
€2,206 EUR
$2,463 USD
View
Price under review
25 more retailers have this diamond
Prices start from €544 EURSave up to €743 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
€544 EUR