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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 $23,354 NZD
$13,140 USD
As of November 2, 2026
Save $12,756 NZD (35%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $36,110 NZD 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 November 1, 2026, with prices from $23,354 to $36,110, a $12,756 spread on the same certified stone. MOH London lists it at $36,110. 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: Nov 2
Current: $36,110 NZD|Low: $23,354 NZD|High: $37,880 NZD|Avg: $27,838 NZD|-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$23,354 NZD
Retailer 13$23,462 NZD
Retailer 12$24,457 NZD
Retailer 8$24,862 NZD
Retailer 3$25,042 NZD
Retailer 2$25,317 NZD
Retailer 4$25,522 NZD
Retailer 11$27,223 NZD
Retailer 6$27,648 NZD
Retailer 5$28,341 NZD
Retailer 7$28,711 NZD
Retailer 9$29,002 NZD
Retailer 10$29,972 NZD
Retailer 15$32,754 NZD
MOH London$36,110 NZD

35 data points across 15 retailers

17 retailers$23,354 NZD to $36,110 NZD

A
Cheapest Retailer
-
$23,354 NZD
$13,140 USD
A
Retailer 2
-
$23,462 NZD
$13,201 USD
View
A
Retailer 3
-
$24,457 NZD
$13,761 USD
View
Final sale: no returns
A
Retailer 4
-
$24,862 NZD
£11,015 GBP
View
A
Retailer 5
-
$25,042 NZD
$14,090 USD
View
A
Retailer 6
-
$25,317 NZD
£11,216 GBP
View
A
Retailer 7
-
$25,522 NZD
$14,360 USD
View
A
Retailer 8
-
$27,223 NZD
$15,317 USD
View
A
Retailer 9
-
$27,648 NZD
$15,556 USD
View
A
Retailer 10
-
$28,341 NZD
$15,946 USD
View
Retailer 11
-
$28,711 NZD
$16,154 USD
View
Price last confirmed 63 days ago
A
Retailer 12
-
$28,711 NZD
$16,154 USD
View
A
Retailer 13
-
$29,002 NZD
€15,541 EUR
View
A
Retailer 14
-
$29,972 NZD
ZAR 272,433 ZAR
View
B+
Retailer 15
-
$32,754 NZD
$18,429 USD
View
Retailer 16
-
$32,754 NZD
$18,429 USD
View
Price last confirmed 65 days ago
Most Expensive
A
MOH London
15A73A5D1 · Nov 1
$36,110 NZD
£15,998 GBP
View
16 more retailers have this diamond
Prices start from $23,354 NZDSave up to $12,756 NZD

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
$23,354 NZD