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3.21ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 826667269

Shape and cutting style on the report: Round brilliant

Certificate IGI 826667269

Diamond specifications and retailer prices

From $16,798 SGD
$13,140 USD
As of October 31, 2026
Save $9,176 SGD (35%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $25,974 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 826667269. Listed at 17 retailers as of October 31, 2026, with prices from $16,798 to $25,974, a $9,176 spread on the same certified stone. MOH London lists it at $25,974. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.9°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 826667269
Dimensions9.37 × 9.41 × 5.85 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
9.37 mm9.41 mm3.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 826667269
Side View
Table 57.0%Crown 35.9°Girdle: MediumPavilion 40.7°Culet: NoneDepth 62.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $25,974 SGD|Low: $16,798 SGD|High: $27,247 SGD|Avg: $20,021 SGD|-4.7%
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
Retailer 15
November 2, 2026
Retailer 14$16,798 SGD
Retailer 13$16,876 SGD
Retailer 12$17,592 SGD
Retailer 2$17,883 SGD
Retailer 3$18,013 SGD
Retailer 8$18,211 SGD
Retailer 4$18,358 SGD
Retailer 11$19,581 SGD
Retailer 6$19,887 SGD
Retailer 5$20,386 SGD
Retailer 7$20,651 SGD
Retailer 9$20,861 SGD
Retailer 10$21,558 SGD
Retailer 15$23,560 SGD
MOH London$25,974 SGD

35 data points across 15 retailers

17 retailers$16,798 SGD to $25,974 SGD

A
Cheapest Retailer
-
$16,798 SGD
$13,140 USD
A
Retailer 2
-
$16,876 SGD
$13,201 USD
View
A
Retailer 3
-
$17,592 SGD
$13,761 USD
View
Final sale: no returns
A
Retailer 4
-
$17,883 SGD
£11,015 GBP
View
A
Retailer 5
-
$18,013 SGD
$14,090 USD
View
A
Retailer 6
-
$18,211 SGD
£11,217 GBP
View
A
Retailer 7
-
$18,358 SGD
$14,360 USD
View
A
Retailer 8
-
$19,581 SGD
$15,317 USD
View
A
Retailer 9
-
$19,887 SGD
$15,556 USD
View
A
Retailer 10
-
$20,386 SGD
$15,946 USD
View
Retailer 11
-
$20,651 SGD
$16,154 USD
View
Price last confirmed 63 days ago
A
Retailer 12
-
$20,651 SGD
$16,154 USD
View
A
Retailer 13
-
$20,861 SGD
€15,541 EUR
View
A
Retailer 14
-
$21,558 SGD
ZAR 272,433 ZAR
View
B+
Retailer 15
-
$23,560 SGD
$18,429 USD
View
Retailer 16
-
$23,560 SGD
$18,429 USD
View
Price last confirmed 64 days ago
Most Expensive
A
MOH London
15A73A5D1 · Nov 1
$25,974 SGD
£15,998 GBP
View
16 more retailers have this diamond
Prices start from $16,798 SGDSave up to $9,176 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.

A
3.21ct Round
$16,798 SGD