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Round|Natural|GIA

1.21ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2416493551

Certificate GIA 2416493551

Diamond specifications and retailer prices

From $5,204 NZD
As of November 4, 2026
Save $6,393 NZD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,597 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2416493551. Listed at 19 retailers as of November 4, 2026, with prices from $5,204 to $11,597, a $6,393 spread on the same certified stone. NZ Jewellers lists it at $11,597. 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

1.21
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2416493551
Dimensions6.80 × 6.76 × 4.24 mm
L/W Ratio1.01
Top View
6.80 mm6.76 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2416493551
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $11,597 NZD|Low: $4,995 NZD|High: $11,702 NZD|Avg: $6,988 NZD
NZ Jewellers
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
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 16$5,204 NZD
Retailer 3$5,246 NZD
Retailer 6$5,352 NZD
Retailer 2$5,511 NZD
Retailer 17$5,664 NZD
Retailer 9$6,030 NZD
Retailer 10$6,030 NZD
Retailer 4$6,052 NZD
Retailer 11$6,202 NZD
Retailer 7$6,747 NZD
Retailer 18$6,747 NZD
Retailer 14$6,846 NZD
Retailer 12$6,891 NZD
Retailer 8$6,981 NZD
Retailer 13$7,279 NZD
Retailer 5$7,538 NZD
Retailer 15$11,101 NZD
NZ Jewellers$11,597 NZD

40 data points across 18 retailers

19 retailers$5,204 NZD to $11,597 NZD

A
Cheapest Retailer
-
$5,204 NZD
A
Retailer 2
-
$5,246 NZD
View
B+
Retailer 3
-
$5,352 NZD
View
B+
Retailer 4
-
$5,511 NZD
View
Final sale: no returns
B+
Retailer 5
-
$5,547 NZD
View
Retailer 6
-
$5,664 NZD
View
Price last confirmed 17 days ago
Retailer 7
-
$6,030 NZD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$6,030 NZD
View
B+
Retailer 9
-
$6,052 NZD
View
B+
Retailer 10
-
$6,202 NZD
View
B
Retailer 11
-
$6,747 NZD
View
B
Retailer 12
-
$6,747 NZD
View
B
Retailer 13
-
$6,784 NZD
View
B+
Retailer 14
-
$6,846 NZD
View
B
Retailer 15
-
$6,891 NZD
View
B
Retailer 16
-
$6,981 NZD
View
B+
Retailer 17
-
$7,279 NZD
View
B
Retailer 18
-
$11,101 NZD
View
Most Expensive
B
NZ Jewellers
016afa2a-a770-4c4a-8e1c-d63ca2ad3294 · Nov 5
$11,597 NZD
$6,429 USD
View
18 more retailers have this diamond
Prices start from $5,204 NZDSave up to $6,393 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
1.21ct Round
$5,204 NZD