CaratHunter
Plans
Round|Natural|GIA

1.21ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 5546359913

Certificate GIA 5546359913

Diamond specifications and retailer prices

From $3,781 NZD
As of November 6, 2026
Save $6,095 NZD (62%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $9,876 NZD at NZ Jewellers · As of September 21, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5546359913. Listed at 17 retailers as of November 6, 2026, with a 161% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5546359913
Dimensions6.78 × 6.81 × 4.21 mm
L/W Ratio1.00
Top View
6.78 mm6.81 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5546359913
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.9%

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: $9,876 NZD|Low: $3,436 NZD|High: $9,876 NZD|Avg: $5,923 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 7$3,781 NZD
Retailer 8$4,279 NZD
Retailer 2$4,481 NZD
Retailer 3$4,486 NZD
Retailer 5$5,017 NZD
Retailer 6$5,552 NZD
Retailer 4$8,231 NZD
NZ Jewellers$9,876 NZD

38 data points across 8 retailers

17 retailers$3,781 NZD to $9,876 NZD

A
Cheapest Retailer
-
$3,781 NZD
Final sale: no returns
A
Retailer 2
-
$3,790 NZD
View
A
Retailer 3
-
$3,902 NZD
View
Retailer 4
-
$4,279 NZD
View
Price last confirmed 45 days ago
A
Retailer 5
-
$4,279 NZD
View
A
Retailer 6
-
$4,481 NZD
View
A
Retailer 7
-
$4,486 NZD
View
Retailer 8
-
$4,528 NZD
View
Price last confirmed 31 days ago
Retailer 9
-
$4,937 NZD
View
Price last confirmed 46 days ago
B+
Retailer 10
-
$4,961 NZD
View
B+
Retailer 11
-
$4,961 NZD
View
A
Retailer 12
-
$5,017 NZD
View
B+
Retailer 13
-
$5,141 NZD
View
B+
Retailer 14
-
$5,552 NZD
View
B
Retailer 15
-
$8,231 NZD
View
B
Retailer 16
-
$9,876 NZD
View
Most Expensive
NZ Jewellers
6429a346-531a-4350-8fc7-527f5db21abd · Sep 21
$9,876 NZD
$5,475 USD
View
Price last confirmed 46 days ago
16 more retailers have this diamond
Prices start from $3,781 NZDSave up to $6,095 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
$3,781 NZD