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Round|Natural|GIA

1.21ct K I1 Round Natural Diamond

VG • K/I1 • GIA 2366245631

Certificate GIA 2366245631

Diamond specifications and retailer prices

From $3,165 NZD
As of November 6, 2026
Save $4,808 NZD (60%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $7,973 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 K colour (faint-tinted) and I1 clarity (included), with a very-good cut grade and certified by GIA 2366245631. Listed at 8 retailers as of November 5, 2026, with prices from $3,165 to $7,973, a $4,808 spread on the same certified stone. NZ Jewellers lists it at $7,973. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
K
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2366245631
Dimensions6.61 × 6.67 × 4.27 mm
L/W Ratio1.01
Star length45%
Lower girdle80%
Top View
6.61 mm6.67 mm1.21 ctK / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2366245631
Side View
Table 56.0%Crown 36.5°GirdlePavilion 40.6°Culet: NoneDepth 64.3%

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: Nov 6
Current: $7,973 NZD|Low: $3,142 NZD|High: $7,973 NZD|Avg: $4,393 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 3$3,165 NZD
Retailer 8$3,446 NZD
Retailer 4$3,814 NZD
Retailer 6$3,814 NZD
Retailer 10$3,971 NZD
Retailer 5$3,990 NZD
Retailer 7$4,401 NZD
Retailer 9$4,755 NZD
Retailer 2$5,177 NZD
NZ Jewellers$7,973 NZD

18 data points across 10 retailers

8 retailers$3,165 NZD to $7,973 NZD

B+
Cheapest Retailer
-
$3,165 NZD
B+
Retailer 2
-
$3,446 NZD
View
B
Retailer 3
-
$3,814 NZD
View
Retailer 4
-
$3,814 NZD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$3,990 NZD
View
B
Retailer 6
-
$4,401 NZD
View
B
Retailer 7
-
$5,177 NZD
View
Most Expensive
C
NZ Jewellers
40b4cca8-f78e-4904-bdeb-db19a48cc911 · Nov 5
$7,973 NZD
$4,482 USD
View
7 more retailers have this diamond
Prices start from $3,165 NZDSave up to $4,808 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+
1.21ct Round
$3,165 NZD