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Round|Natural|GIA

1.21ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 2126497381

Certificate GIA 2126497381

Diamond specifications and retailer prices

From $5,394 NZD
As of November 3, 2026
Save $13,998 NZD (72%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $19,392 NZD at Jared · As of November 6, 2026
View at Jared

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 2126497381. Listed at 14 retailers as of November 3, 2026, with prices from $5,394 to $19,392, a $13,998 spread on the same certified stone. Jared lists it at $19,392. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2126497381
Dimensions6.86 × 6.82 × 4.22 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.86 mm6.82 mm1.21 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2126497381
Side View
Table 59.0%CrownGirdle: THN-MEDPavilionCulet: NoneDepth 61.7%

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 3
Current: $19,392 NZD|Low: $5,394 NZD|High: $19,392 NZD|Avg: $14,693 NZD
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 8$5,394 NZD
Retailer 9$7,901 NZD
Retailer 11$13,977 NZD
Retailer 7$14,079 NZD
Retailer 3$14,442 NZD
Retailer 10$15,344 NZD
Retailer 13$15,402 NZD
Retailer 2$16,417 NZD
Retailer 4$18,761 NZD
Retailer 5$18,761 NZD
Retailer 12$18,945 NZD
Retailer 6$18,959 NZD
Jared$19,392 NZD

33 data points across 13 retailers

14 retailers$5,394 NZD to $19,392 NZD

A
Cheapest Retailer
-
$5,394 NZD
B+
Retailer 2
-
$7,901 NZD
View
B
Retailer 3
-
$13,977 NZD
View
B
Retailer 4
-
$14,079 NZD
View
B
Retailer 5
-
$14,442 NZD
View
B
Retailer 6
-
$15,344 NZD
View
B
Retailer 7
-
$15,402 NZD
View
Retailer 8
-
$16,417 NZD
View
B
Retailer 9
-
$18,761 NZD
View
B
Retailer 10
-
$18,761 NZD
View
B
Retailer 11
-
$18,945 NZD
View
B
Retailer 12
-
$18,959 NZD
View
Most Expensive
B
Jared
128855742 · Nov 6
$19,392 NZD
$10,750 USD
View
12 more retailers have this diamond
Prices start from $5,394 NZDSave up to $13,998 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
$5,394 NZD