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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 $2,851 AUD
As of November 5, 2026
Save $3,684 AUD (56%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,535 AUD 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 $2,851 to $6,535, a $3,684 spread on the same certified stone. NZ Jewellers lists it at $6,535. 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: $6,535 AUD|Low: $2,644 AUD|High: $7,581 AUD|Avg: $4,063 AUD|-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$2,851 AUD
Retailer 7$2,885 AUD
Retailer 2$2,950 AUD
Retailer 3$3,126 AUD
Retailer 8$3,270 AUD
Retailer 4$3,595 AUD
Retailer 9$3,606 AUD
Retailer 5$4,235 AUD
Retailer 6$5,461 AUD
Retailer 11$5,666 AUD
NZ Jewellers$6,535 AUD

43 data points across 11 retailers

11 retailers$2,851 AUD to $6,535 AUD

A
Cheapest Retailer
-
$2,851 AUD
A
Retailer 2
-
$2,885 AUD
View
Final sale: no returns
A
Retailer 3
-
$2,950 AUD
View
B+
Retailer 4
-
$3,126 AUD
View
B+
Retailer 5
-
$3,270 AUD
View
B+
Retailer 6
-
$3,595 AUD
View
B+
Retailer 7
-
$3,606 AUD
View
B
Retailer 8
-
$4,235 AUD
View
B
Retailer 9
-
$5,461 AUD
View
B
Retailer 10
-
$5,666 AUD
View
Most Expensive
B
NZ Jewellers
8dbac2f0-1cc8-43ae-bf97-1e4325459bfa · Nov 5
$6,535 AUD
$4,490 USD
View
10 more retailers have this diamond
Prices start from $2,851 AUDSave up to $3,684 AUD

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
$2,851 AUD