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Round|Natural|GIA

1.21ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 3565212418

Certificate GIA 3565212418

Diamond specifications and retailer prices

From $4,364 NZD
As of November 6, 2026
Save $6,211 NZD (59%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $10,574 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3565212418. Listed at 17 retailers as of November 5, 2026, with prices from $4,364 to $10,574, a $6,211 spread on the same certified stone. NZ Jewellers lists it at $10,574. 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
FluorescenceNone
Crown angle36°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 3565212418
Dimensions6.74 × 6.80 × 4.29 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle, Knot
Top View
6.74 mm6.80 mm1.21 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3565212418
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.3%

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 6
Current: $10,574 NZD|Low: $4,364 NZD|High: $10,616 NZD|Avg: $6,475 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
November 6, 2026
Retailer 12$4,364 NZD
Retailer 17$4,647 NZD
Retailer 10$5,201 NZD
Retailer 13$5,296 NZD
Retailer 7$5,735 NZD
Retailer 15$6,023 NZD
Retailer 6$6,068 NZD
Retailer 9$6,068 NZD
Retailer 2$6,083 NZD
Retailer 5$6,106 NZD
Retailer 11$6,115 NZD
Retailer 14$6,117 NZD
Retailer 16$6,416 NZD
Retailer 8$6,490 NZD
Retailer 3$6,759 NZD
Retailer 4$10,123 NZD
NZ Jewellers$10,574 NZD

24 data points across 17 retailers

17 retailers$4,364 NZD to $10,574 NZD

A
Cheapest Retailer
-
$4,364 NZD
A
Retailer 2
-
$4,647 NZD
View
Final sale: no returns
A
Retailer 3
-
$5,201 NZD
View
A
Retailer 4
-
$5,296 NZD
View
A
Retailer 5
-
$5,735 NZD
View
A
Retailer 6
-
$6,023 NZD
View
Retailer 7
-
$6,068 NZD
View
Price last confirmed 13 days ago
B+
Retailer 8
-
$6,068 NZD
View
B+
Retailer 9
-
$6,083 NZD
View
B+
Retailer 10
-
$6,106 NZD
View
B+
Retailer 11
-
$6,115 NZD
View
B+
Retailer 12
-
$6,117 NZD
View
B+
Retailer 13
-
$6,416 NZD
View
B+
Retailer 14
-
$6,490 NZD
View
B+
Retailer 15
-
$6,759 NZD
View
B
Retailer 16
-
$10,123 NZD
View
Most Expensive
B
NZ Jewellers
3b8c8f14-8728-4fce-99c8-31d452c594d4 · Nov 5
$10,574 NZD
$5,862 USD
View
16 more retailers have this diamond
Prices start from $4,364 NZDSave up to $6,211 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
$4,364 NZD