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Round|Natural|GIA

1.21ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6565200380

Certificate GIA 6565200380

Diamond specifications and retailer prices

From $2,757 AUD
As of November 6, 2026
Save $4,909 AUD (64%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $7,666 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 6565200380. Listed at 21 retailers as of November 5, 2026, with prices from $2,757 to $7,666, a $4,909 spread on the same certified stone. NZ Jewellers lists it at $7,666. 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
FluorescenceFaint
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6565200380
Dimensions6.76 × 6.82 × 4.22 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
6.76 mm6.82 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565200380
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.2%

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: $7,666 AUD|Low: $2,757 AUD|High: $7,666 AUD|Avg: $4,242 AUD
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
November 6, 2026
Retailer 15$2,757 AUD
Retailer 2$2,869 AUD
Retailer 11$2,921 AUD
Retailer 14$3,333 AUD
Retailer 3$3,413 AUD
Retailer 8$3,459 AUD
Retailer 4$3,666 AUD
Retailer 6$3,666 AUD
Retailer 5$3,836 AUD
Retailer 9$3,857 AUD
Retailer 7$4,231 AUD
Retailer 10$4,475 AUD
Retailer 12$4,548 AUD
Retailer 13$6,405 AUD
NZ Jewellers$7,666 AUD

23 data points across 15 retailers

21 retailers$2,757 AUD to $7,666 AUD

A
Cheapest Retailer
-
$2,757 AUD
A
Retailer 2
-
$2,869 AUD
View
A
Retailer 3
-
$2,921 AUD
View
B+
Retailer 4
-
$3,333 AUD
View
B+
Retailer 5
-
$3,413 AUD
View
B+
Retailer 6
-
$3,413 AUD
View
B+
Retailer 7
-
$3,441 AUD
View
B+
Retailer 8
-
$3,459 AUD
View
Retailer 9
-
$3,666 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$3,666 AUD
View
B+
Retailer 11
-
$3,769 AUD
View
B+
Retailer 12
-
$3,832 AUD
View
B+
Retailer 13
-
$3,836 AUD
View
B+
Retailer 14
-
$3,857 AUD
View
B+
Retailer 15
-
$3,870 AUD
View
Retailer 16
-
$4,107 AUD
View
Price last confirmed 31 days ago
B
Retailer 17
-
$4,231 AUD
View
B+
Retailer 18
-
$4,475 AUD
View
B+
Retailer 19
-
$4,548 AUD
View
B
Retailer 20
-
$6,405 AUD
View
Most Expensive
B
NZ Jewellers
3949d498-801d-49b3-ac99-dac1d4bfa867 · Nov 5
$7,666 AUD
$5,267 USD
View
20 more retailers have this diamond
Prices start from $2,757 AUDSave up to $4,909 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
$2,757 AUD