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Round|Natural|GIA

3.21ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7521948110

Certificate GIA 7521948110

Diamond specifications and retailer prices

From $66,550 NZD
CA$52,094 CAD
As of October 30, 2026
Save $16,695 NZD (20%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $83,245 NZD at The Diamond Guys · As of October 31, 2026
View at The Diamond Guys

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 7521948110. Listed at 7 retailers as of October 30, 2026, with prices from $66,550 to $83,245, a $16,695 spread on the same certified stone. The Diamond Guys lists it at $83,245. 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 angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7521948110
Dimensions9.35 × 9.40 × 5.84 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Feather, Crystal, Cloud, Pinpoint
Top View
9.35 mm9.40 mm3.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7521948110
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°CuletDepth 62.2%

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: $83,221 NZD|Low: $66,550 NZD|High: $83,810 NZD|Avg: $74,607 NZD|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
The Diamond Guys
November 1, 2026
Retailer 5$66,550 NZD
Retailer 2$67,549 NZD
Retailer 6$70,040 NZD
Retailer 7$70,340 NZD
Retailer 3$74,634 NZD
Retailer 4$82,097 NZD
Retailer 1$83,221 NZD
The Diamond Guys$83,245 NZD

21 data points across 8 retailers

7 retailers$66,550 NZD to $83,245 NZD

B+
Cheapest Retailer
-
$66,550 NZD
CA$52,094 CAD
B+
Retailer 2
-
$67,549 NZD
$38,071 USD
View
B
Retailer 3
-
$70,040 NZD
$39,475 USD
View
B
Retailer 4
-
$74,634 NZD
$42,064 USD
View
B
Retailer 5
-
$82,097 NZD
$46,270 USD
View
B
Retailer 6
-
$83,221 NZD
€44,670 EUR
View
Most Expensive
B
The Diamond Guys
1966850820 · Oct 31
$83,245 NZD
$46,917 USD
View
6 more retailers have this diamond
Prices start from $66,550 NZDSave up to $16,695 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.

B+
3.21ct Round
$66,550 NZD