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Round|Natural|GIA

1.21ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2564084734

Certificate GIA 2564084734

Diamond specifications and retailer prices

From $1,847 AUD
SGD 1,753 SGD
As of October 31, 2026
Save $1,689 AUD (48%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,536 AUD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2564084734. Listed at 13 retailers as of October 26, 2026, with prices from $1,847 to $3,536, a $1,689 spread on the same certified stone. Wholesale Diamonds Direct lists it at $3,536. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2564084734
Dimensions6.76 × 6.80 × 4.26 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.76 mm6.80 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2564084734
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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: Oct 31
Current: $2,389 AUD|Low: $1,847 AUD|High: $3,859 AUD|Avg: $2,630 AUD|-7.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
November 1, 2026
Retailer 12$1,847 AUD
Retailer 8$2,145 AUD
Retailer 9$2,182 AUD
Retailer 10$2,185 AUD
Retailer 4$2,337 AUD
Retailer 5$2,375 AUD
Retailer 1$2,389 AUD
Retailer 11$2,392 AUD
Retailer 2$2,591 AUD
Retailer 6$2,802 AUD
Retailer 3$2,878 AUD
Retailer 7$3,033 AUD
Wholesale Diamonds Direct$3,536 AUD

29 data points across 13 retailers

13 retailers$1,847 AUD to $3,536 AUD

A
Cheapest Retailer
-
$1,847 AUD
SGD 1,753 SGD
A
Retailer 2
-
$2,145 AUD
$1,507 USD
View
A
Retailer 3
-
$2,182 AUD
$1,533 USD
View
A
Retailer 4
-
$2,185 AUD
$1,535 USD
View
A
Retailer 5
-
$2,337 AUD
SGD 2,218 SGD
View
A
Retailer 6
-
$2,375 AUD
$1,668 USD
View
A
Retailer 7
-
$2,389 AUD
£1,322 GBP
View
A
Retailer 8
-
$2,392 AUD
$1,680 USD
View
A
Retailer 9
-
$2,591 AUD
$1,820 USD
View
A
Retailer 10
-
$2,802 AUD
£1,550 GBP
View
A
Retailer 11
-
$2,878 AUD
$2,022 USD
View
B+
Retailer 12
-
$3,033 AUD
€2,029 EUR
View
Most Expensive
B+
Wholesale Diamonds Direct
570927854 · Oct 26
$3,536 AUD
$2,484 USD
View
12 more retailers have this diamond
Prices start from $1,847 AUDSave up to $1,689 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
$1,847 AUD