Round|Natural|GIA

3.21ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 6555961001

Certificate GIA 6555961001

Diamond specifications and retailer prices

From €14,715 EUR
As of November 4, 2026
Save €3,951 EUR (21%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €20,542 EUR at NZ Jewellers · As of August 29, 2026
View at NZ Jewellers

About this 3.21ct natural round diamond

This 3.21ct natural round sits in the three to five carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555961001. Listed at 6 retailers as of November 4, 2026, with a 27% 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

3.21
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6555961001
Dimensions9.37 × 9.42 × 5.84 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
9.37 mm9.42 mm3.21 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555961001
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.1%

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: €18,666 EUR|Low: €14,715 EUR|High: €18,796 EUR|Avg: €16,678 EUR|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 2€14,715 EUR
Retailer 5€15,650 EUR
Retailer 3€16,005 EUR
Retailer 4€17,339 EUR
Retailer 6€17,789 EUR
Retailer 1€18,666 EUR

8 data points across 6 retailers

6 retailers€14,715 EUR to €18,666 EUR

B+
Cheapest Retailer
-
€14,715 EUR
B+
Retailer 2
-
€15,650 EUR
View
B
Retailer 3
-
€17,789 EUR
View
Retailer 4
-
€18,006 EUR
View
Price last confirmed 61 days ago
B
Retailer 5
-
€18,666 EUR
View
Most Expensive
NZ Jewellers
5361d673-7634-40de-8bcb-76d5f55fbc2a · Aug 29
€20,542 EUR
$23,056 USD
View
Price last confirmed 68 days ago
5 more retailers have this diamond
Prices start from €14,715 EURSave up to €3,951 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+
3.21ct Round
€14,715 EUR