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Round|Natural|GIA

1.21ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6522585574

Certificate GIA 6522585574

Diamond specifications and retailer prices

From $4,845 NZD
As of November 6, 2026
Save $6,481 NZD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,327 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6522585574. Listed at 19 retailers as of November 5, 2026, with prices from $4,845 to $11,327, a $6,481 spread on the same certified stone. NZ Jewellers lists it at $11,327. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6522585574
Dimensions6.79 × 6.73 × 4.22 mm
L/W Ratio1.01
Top View
6.79 mm6.73 mm1.21 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6522585574
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: 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: $11,327 NZD|Low: $4,802 NZD|High: $11,327 NZD|Avg: $6,996 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
Retailer 18
November 7, 2026
Retailer 11$4,845 NZD
Retailer 18$4,849 NZD
Retailer 5$5,771 NZD
Retailer 16$5,827 NZD
Retailer 10$6,000 NZD
Retailer 12$6,220 NZD
Retailer 6$6,251 NZD
Retailer 4$6,501 NZD
Retailer 9$6,501 NZD
Retailer 2$6,685 NZD
Retailer 13$6,750 NZD
Retailer 7$6,752 NZD
Retailer 8$6,763 NZD
Retailer 3$7,501 NZD
Retailer 14$7,549 NZD
Retailer 15$7,935 NZD
Retailer 17$10,872 NZD
NZ Jewellers$11,327 NZD

25 data points across 18 retailers

19 retailers$4,845 NZD to $11,327 NZD

A
Cheapest Retailer
-
$4,845 NZD
A
Retailer 2
-
$4,849 NZD
View
B+
Retailer 3
-
$5,771 NZD
View
B+
Retailer 4
-
$5,827 NZD
View
B+
Retailer 5
-
$6,000 NZD
View
Final sale: no returns
B+
Retailer 6
-
$6,220 NZD
View
B+
Retailer 7
-
$6,251 NZD
View
B+
Retailer 8
-
$6,501 NZD
View
Retailer 9
-
$6,501 NZD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$6,685 NZD
View
B+
Retailer 11
-
$6,750 NZD
View
B+
Retailer 12
-
$6,752 NZD
View
B+
Retailer 13
-
$6,763 NZD
View
Retailer 14
-
$7,118 NZD
View
Price last confirmed 30 days ago
B+
Retailer 15
-
$7,501 NZD
View
B+
Retailer 16
-
$7,549 NZD
View
B+
Retailer 17
-
$7,935 NZD
View
B
Retailer 18
-
$10,872 NZD
View
Most Expensive
B
NZ Jewellers
b925d230-40f5-4a38-baa3-40e6d16c4a2c · Nov 5
$11,327 NZD
$6,279 USD
View
18 more retailers have this diamond
Prices start from $4,845 NZDSave up to $6,481 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
$4,845 NZD