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Round|Natural|GIA

3.21ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6555441578

Certificate GIA 6555441578

Diamond specifications and retailer prices

From $43,682 SGD
CA$47,439 CAD
As of October 30, 2026
Save $27,922 SGD (39%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $71,605 SGD at MOH London · As of November 1, 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 6555441578. Listed at 12 retailers as of October 30, 2026, with prices from $43,682 to $71,605, a $27,922 spread on the same certified stone. MOH London lists it at $71,605. 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6555441578
Dimensions9.43 × 9.37 × 5.87 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
9.43 mm9.37 mm3.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555441578
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

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: Oct 30
Current: $71,605 SGD|Low: $38,330 SGD|High: $72,467 SGD|Avg: $49,013 SGD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 5$38,546 SGD
Retailer 6$40,473 SGD
Retailer 10$43,682 SGD
Retailer 3$43,955 SGD
Retailer 14$45,951 SGD
Retailer 2$46,291 SGD
Retailer 4$48,291 SGD
Retailer 8$48,291 SGD
Retailer 11$48,565 SGD
Retailer 9$49,903 SGD
Retailer 7$54,153 SGD
Retailer 12$54,169 SGD
Retailer 13$54,655 SGD
MOH London$71,605 SGD

30 data points across 14 retailers

12 retailers$43,682 SGD to $71,605 SGD

B+
Cheapest Retailer
-
$43,682 SGD
CA$47,439 CAD
B+
Retailer 2
-
$43,955 SGD
$34,369 USD
View
B+
Retailer 3
-
$45,951 SGD
$35,930 USD
View
B+
Retailer 4
-
$46,291 SGD
£28,501 GBP
View
B+
Retailer 5
-
$48,291 SGD
$37,760 USD
View
B+
Retailer 6
-
$48,291 SGD
$37,760 USD
View
B+
Retailer 7
-
$48,565 SGD
$37,974 USD
View
B
Retailer 8
-
$49,903 SGD
$39,020 USD
View
B+
Retailer 9
-
$54,153 SGD
€40,327 EUR
View
B
Retailer 10
-
$54,169 SGD
$42,356 USD
View
B
Retailer 11
-
$54,655 SGD
$42,736 USD
View
Most Expensive
B
MOH London
059A526E6 · Nov 1
$71,605 SGD
£44,086 GBP
View
11 more retailers have this diamond
Prices start from $43,682 SGDSave up to $27,922 SGD

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
$43,682 SGD