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Round|Natural|GIA

1.21ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 5563654767

Certificate GIA 5563654767

Diamond specifications and retailer prices

From $3,855 NZD
As of November 1, 2026
Save $4,800 NZD (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,822 NZD at NZ Jewellers · As of October 30, 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 5563654767. Listed at 18 retailers as of November 1, 2026, with a 125% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5563654767
Dimensions6.78 × 6.74 × 4.23 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.78 mm6.74 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5563654767
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

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 1
Current: $10,822 NZD|Low: $3,694 NZD|High: $10,822 NZD|Avg: $5,439 NZD|+3.5%
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
Retailer 19
November 2, 2026
Retailer 3$3,855 NZD
Retailer 12$3,923 NZD
Retailer 18$4,252 NZD
Retailer 8$4,353 NZD
Retailer 14$4,474 NZD
Retailer 17$4,777 NZD
Retailer 7$4,825 NZD
Retailer 6$4,843 NZD
Retailer 10$4,999 NZD
Retailer 16$5,175 NZD
Retailer 11$5,192 NZD
Retailer 9$5,358 NZD
Retailer 2$5,500 NZD
Retailer 4$5,576 NZD
Retailer 5$5,973 NZD
Retailer 13$6,047 NZD
Retailer 19$6,337 NZD
Retailer 15$8,655 NZD
NZ Jewellers$10,822 NZD

13 data points across 19 retailers

18 retailers$3,855 NZD to $8,655 NZD

A
Cheapest Retailer
-
$3,855 NZD
A
Retailer 2
-
$3,923 NZD
View
A
Retailer 3
-
$4,252 NZD
View
A
Retailer 4
-
$4,353 NZD
View
A
Retailer 5
-
$4,474 NZD
View
A
Retailer 6
-
$4,825 NZD
View
A
Retailer 7
-
$4,843 NZD
View
Retailer 8
-
$4,999 NZD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$5,175 NZD
View
Retailer 10
-
$5,192 NZD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$5,358 NZD
View
B+
Retailer 12
-
$5,500 NZD
View
B+
Retailer 13
-
$5,576 NZD
View
Retailer 14
-
$5,973 NZD
View
Price last confirmed 7 days ago
B+
Retailer 15
-
$6,047 NZD
View
B+
Retailer 16
-
$6,337 NZD
View
B
Retailer 17
-
$8,655 NZD
View
Most Expensive
NZ Jewellers
70cd373a-5ba6-4d13-8090-58c9fbdf3b5b · Oct 30
$10,822 NZD
$5,999 USD
View
Price last confirmed 8 days ago
17 more retailers have this diamond
Prices start from $3,855 NZDSave up to $4,800 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
$3,855 NZD