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Round|Natural|GIA

1.21ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 7541433747

Certificate GIA 7541433747

Diamond specifications and retailer prices

From $3,534 NZD
As of November 5, 2026
Save $4,566 NZD (56%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,100 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7541433747. Listed at 11 retailers as of November 5, 2026, with prices from $3,534 to $8,100, a $4,566 spread on the same certified stone. NZ Jewellers lists it at $8,100. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7541433747
Dimensions6.80 × 6.76 × 4.22 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Cloud, Crystal, Needle
Top View
6.80 mm6.76 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7541433747
Side View
Table 59.0%Crown 35.5°GirdlePavilion 41°Culet: NoneDepth 62.3%

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 5
Current: $8,100 NZD|Low: $3,278 NZD|High: $9,397 NZD|Avg: $5,036 NZD|-13.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$3,534 NZD
Retailer 7$3,575 NZD
Retailer 2$3,657 NZD
Retailer 3$3,875 NZD
Retailer 8$4,053 NZD
Retailer 4$4,456 NZD
Retailer 9$4,470 NZD
Retailer 5$5,249 NZD
Retailer 6$6,768 NZD
Retailer 11$7,023 NZD
NZ Jewellers$8,100 NZD

43 data points across 11 retailers

11 retailers$3,534 NZD to $8,100 NZD

A
Cheapest Retailer
-
$3,534 NZD
A
Retailer 2
-
$3,575 NZD
View
Final sale: no returns
A
Retailer 3
-
$3,657 NZD
View
B+
Retailer 4
-
$3,875 NZD
View
B+
Retailer 5
-
$4,053 NZD
View
B+
Retailer 6
-
$4,456 NZD
View
B+
Retailer 7
-
$4,470 NZD
View
B
Retailer 8
-
$5,249 NZD
View
B
Retailer 9
-
$6,768 NZD
View
B
Retailer 10
-
$7,023 NZD
View
Most Expensive
B
NZ Jewellers
8dbac2f0-1cc8-43ae-bf97-1e4325459bfa · Nov 5
$8,100 NZD
$4,490 USD
View
10 more retailers have this diamond
Prices start from $3,534 NZDSave up to $4,566 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
$3,534 NZD