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Round|Natural|HRD

1.21ct F SI2 Round Natural Diamond

EX • F/SI2 • HRD 240000199388

Certificate HRD 240000199388

Diamond specifications and retailer prices

From $3,595 NZD
As of November 4, 2026
Save $4,724 NZD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,320 NZD at NZ Jewellers · As of November 2, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by HRD 240000199388. Listed at 14 retailers as of November 2, 2026, with prices from $3,595 to $8,320, a $4,724 spread on the same certified stone. NZ Jewellers lists it at $8,320. 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
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.2°
Pavilion angle41.4°
OriginNatural
Grading LabHRD
CertificateHRD 240000199388
Dimensions6.75 × 6.71 × 4.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
The stone in accordance with the mentioned number has been identified as a natural gem diamond.
Top View
6.75 mm6.71 mm1.21 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateHRD 240000199388
Side View
Table 58.0%Crown 35.2°Girdle: MediumPavilion 41.4°Culet: NoneDepth 63.4%

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: $8,320 NZD|Low: $3,366 NZD|High: $8,320 NZD|Avg: $4,801 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4$3,595 NZD
Retailer 5$3,671 NZD
Retailer 7$3,790 NZD
Retailer 8$3,979 NZD
Retailer 10$3,979 NZD
Retailer 6$4,163 NZD
Retailer 9$4,591 NZD
Retailer 2$4,959 NZD
Retailer 3$6,952 NZD
NZ Jewellers$8,320 NZD

27 data points across 10 retailers

14 retailers$3,595 NZD to $8,320 NZD

A
Cheapest Retailer
-
$3,595 NZD
A
Retailer 2
-
$3,671 NZD
View
Final sale: no returns
A
Retailer 3
-
$3,790 NZD
View
Retailer 4
-
$3,979 NZD
View
Price last confirmed 54 days ago
Retailer 5
-
$3,979 NZD
View
Price last confirmed 26 days ago
A
Retailer 6
-
$3,979 NZD
View
A
Retailer 7
-
$4,163 NZD
View
Retailer 8
-
$4,591 NZD
View
Price last confirmed 54 days ago
A
Retailer 9
-
$4,591 NZD
View
A
Retailer 10
-
$4,959 NZD
View
B+
Retailer 11
-
$6,952 NZD
View
B
Retailer 12
-
$7,813 NZD
View
Retailer 13
-
$8,320 NZD
View
Price last confirmed 53 days ago
Most Expensive
B
NZ Jewellers
3400ff51-b38b-445a-a925-c9e3f6b5b1aa · Nov 2
$8,320 NZD
$4,612 USD
View
13 more retailers have this diamond
Prices start from $3,595 NZDSave up to $4,724 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
$3,595 NZD