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Round|Natural|GIA

3.21ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1545414829

Certificate GIA 1545414829

Diamond specifications and retailer prices

From $48,731 CAD
As of October 30, 2026
Save $33,070 CAD (40%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $81,800 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 3.21ct natural round diamond

This 3.21ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1545414829. Listed at 7 retailers as of October 29, 2026, with prices from $48,731 to $81,800, a $33,070 spread on the same certified stone. MOH London lists it at $81,800. 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
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1545414829
Dimensions9.37 × 9.41 × 5.87 mm
L/W Ratio1.00
Culet sizeNone
Top View
9.37 mm9.41 mm3.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545414829
Side View
Table 58.0%Crown 35.5°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.5%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $81,800 CAD|Low: $47,901 CAD|High: $84,747 CAD|Avg: $58,366 CAD|-2.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 8$47,901 CAD
Retailer 6$48,731 CAD
Retailer 4$51,163 CAD
Retailer 3$52,087 CAD
Retailer 5$57,265 CAD
Retailer 7$60,955 CAD
Retailer 2$63,212 CAD
MOH London$81,800 CAD

40 data points across 8 retailers

7 retailers$48,731 CAD to $81,800 CAD

B+
Cheapest Retailer
-
$48,731 CAD
Retailer 2
-
$51,163 CAD
A$56,348 AUD
View
Price last confirmed 27 days ago
B+
Retailer 3
-
$52,087 CAD
£29,360 GBP
View
B
Retailer 4
-
$57,265 CAD
$40,994 USD
View
B
Retailer 5
-
$60,955 CAD
$43,636 USD
View
B
Retailer 6
-
$63,212 CAD
€43,097 EUR
View
Most Expensive
B
MOH London
ECA3AF512 · Oct 29
$81,800 CAD
£46,109 GBP
View
6 more retailers have this diamond
Prices start from $48,731 CADSave up to $33,070 CAD

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
$48,731 CAD