Round|Natural|GIA

0.55ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6421533302

Certificate GIA 6421533302

Diamond specifications and retailer prices

From €479 EUR
As of November 6, 2026
Save €1,152 EUR (71%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €2,040 EUR at NZ Jewellers · As of September 15, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6421533302. Listed at 17 retailers as of November 6, 2026, with a 240% 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6421533302
Dimensions5.22 × 5.18 × 3.26 mm
L/W Ratio1.01
Top View
5.22 mm5.18 mm0.55 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6421533302
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.7%

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: €768 EUR|Low: €414 EUR|High: €1,206 EUR|Avg: €753 EUR|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 2€479 EUR
Retailer 7€600 EUR
Retailer 5€640 EUR
Retailer 1€768 EUR
Retailer 4€790 EUR
Retailer 3€841 EUR
Retailer 6€1,191 EUR

43 data points across 7 retailers

17 retailers€479 EUR to €1,631 EUR

A
Cheapest Retailer
-
€479 EUR
A
Retailer 2
-
€580 EUR
View
A
Retailer 3
-
€600 EUR
View
Final sale: no returns
A
Retailer 4
-
€613 EUR
View
B+
Retailer 5
-
€640 EUR
View
Retailer 6
-
€651 EUR
View
Price last confirmed 54 days ago
Retailer 7
-
€651 EUR
View
Price last confirmed 22 days ago
Retailer 8
-
€675 EUR
View
Price last confirmed 23 days ago
B+
Retailer 9
-
€734 EUR
View
Retailer 10
-
€751 EUR
View
Price last confirmed 54 days ago
B+
Retailer 11
-
€768 EUR
View
B+
Retailer 12
-
€768 EUR
View
B+
Retailer 13
-
€790 EUR
View
B+
Retailer 14
-
€841 EUR
View
B
Retailer 15
-
€1,191 EUR
View
B
Retailer 16
-
€1,631 EUR
View
Most Expensive
NZ Jewellers
44670bad-dd18-4c05-89e9-2ef39dd2ad25 · Sep 15
€2,040 EUR
$2,278 USD
View
Price last confirmed 52 days ago
16 more retailers have this diamond
Prices start from €479 EURSave up to €1,152 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
€479 EUR