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1.21ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 5503489142

Certificate GIA 5503489142

Diamond specifications and retailer prices

From $5,816 NZD
As of November 1, 2026
Save $8,194 NZD (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $14,010 NZD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 5503489142. Listed at 16 retailers as of November 1, 2026, with prices from $5,816 to $14,010, a $8,194 spread on the same certified stone. Diamond Quarter lists it at $14,010. 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 angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5503489142
Dimensions6.81 × 6.78 × 4.22 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
6.81 mm6.78 mm1.21 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5503489142
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.1%

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: $7,349 NZD|Low: $5,038 NZD|High: $12,597 NZD|Avg: $8,209 NZD|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 6$5,899 NZD
Retailer 7$6,047 NZD
Retailer 5$6,067 NZD
Retailer 1$7,349 NZD
Retailer 2$7,649 NZD
Retailer 3$7,943 NZD
Retailer 9$8,182 NZD
Retailer 10$8,603 NZD
Retailer 4$12,092 NZD
Retailer 8$12,597 NZD

33 data points across 10 retailers

16 retailers$5,816 NZD to $14,010 NZD

A
Cheapest Retailer
-
$5,816 NZD
A
Retailer 2
-
$5,899 NZD
View
B+
Retailer 3
-
$6,067 NZD
View
Retailer 4
-
$6,550 NZD
View
Price last confirmed 22 days ago
Retailer 5
-
$6,550 NZD
View
Price last confirmed 18 days ago
Retailer 6
-
$6,803 NZD
View
Price last confirmed 23 days ago
B+
Retailer 7
-
$7,349 NZD
View
B+
Retailer 8
-
$7,414 NZD
View
B+
Retailer 9
-
$7,414 NZD
View
Retailer 10
-
$7,558 NZD
View
Price last confirmed 20 days ago
B+
Retailer 11
-
$7,649 NZD
View
B+
Retailer 12
-
$7,943 NZD
View
Retailer 13
-
$8,182 NZD
View
Price last confirmed 23 days ago
B
Retailer 14
-
$12,092 NZD
View
Retailer 15
-
$12,597 NZD
View
Price last confirmed 18 days ago
Most Expensive
B
Diamond Quarter
1.21SI2F55428241N · Nov 5
$14,010 NZD
£6,115 GBP
View
15 more retailers have this diamond
Prices start from $5,816 NZDSave up to $8,194 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
$5,816 NZD