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Round|Natural|GIA

1.21ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 7403585801

Certificate GIA 7403585801

Diamond specifications and retailer prices

From $3,671 NZD
As of November 6, 2026
Save $13,408 NZD (79%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $17,079 NZD at VYOR · As of November 7, 2026
View at VYOR

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7403585801. Listed at 17 retailers as of November 6, 2026, with prices from $3,671 to $17,079, a $13,408 spread on the same certified stone. VYOR lists it at $17,079. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7403585801
Dimensions6.83 × 6.80 × 4.25 mm
L/W Ratio1.00
Top View
6.83 mm6.80 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7403585801
Side View
Table 55.0%CrownGirdle: MED-SLIPavilionCulet: NoneDepth 62.4%

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 6
Current: $4,641 NZD|Low: $3,647 NZD|High: $17,079 NZD|Avg: $5,666 NZD
Retailer 1
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
VYOR
November 7, 2026
Retailer 13$3,671 NZD
Retailer 5$4,425 NZD
Retailer 6$4,584 NZD
Retailer 1$4,641 NZD
Retailer 8$4,692 NZD
Retailer 2$4,941 NZD
Retailer 14$4,941 NZD
Retailer 12$5,116 NZD
Retailer 15$5,130 NZD
Retailer 7$5,195 NZD
Retailer 11$5,199 NZD
Retailer 4$5,700 NZD
Retailer 9$5,745 NZD
Retailer 10$8,608 NZD
Retailer 3$10,329 NZD
VYOR$17,079 NZD

33 data points across 16 retailers

17 retailers$3,671 NZD to $17,079 NZD

A
Cheapest Retailer
-
$3,671 NZD
A
Retailer 2
-
$4,425 NZD
View
A
Retailer 3
-
$4,584 NZD
View
A
Retailer 4
-
$4,641 NZD
View
A
Retailer 5
-
$4,692 NZD
View
A
Retailer 6
-
$4,941 NZD
View
A
Retailer 7
-
$4,941 NZD
View
B+
Retailer 8
-
$5,051 NZD
View
B+
Retailer 9
-
$5,116 NZD
View
B+
Retailer 10
-
$5,130 NZD
View
B+
Retailer 11
-
$5,195 NZD
View
A
Retailer 12
-
$5,199 NZD
View
B+
Retailer 13
-
$5,700 NZD
View
B+
Retailer 14
-
$5,745 NZD
View
B
Retailer 15
-
$8,608 NZD
View
B
Retailer 16
-
$10,329 NZD
View
Most Expensive
B
VYOR
a3efb251-99a5-4d4b-83a7-085bc56d7cb5 · Nov 7
$17,079 NZD
$9,468 USD
View
16 more retailers have this diamond
Prices start from $3,671 NZDSave up to $13,408 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
$3,671 NZD