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Round|Natural|GIA

1.21ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1565410539

Certificate GIA 1565410539

Diamond specifications and retailer prices

From $2,835 AUD
SGD 2,691 SGD
As of October 27, 2026
Save $1,206 AUD (30%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,226 AUD at Wholesale Diamonds Direct · As of October 23, 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 1565410539. Listed at 13 retailers as of October 27, 2026, with a 43% 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle32.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1565410539
Dimensions6.86 × 6.89 × 4.21 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.86 mm6.89 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1565410539
Side View
Table 59.0%Crown 32.5°Girdle: MED-STKPavilion 41.6°Culet: NDepth 61.2%

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: Oct 27
Current: $2,835 AUD|Low: $2,835 AUD|High: $5,404 AUD|Avg: $3,784 AUD|-8.1%
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
October 27, 2026
Retailer 1$2,835 AUD
Retailer 9$2,888 AUD
Retailer 10$3,079 AUD
Retailer 8$3,089 AUD
Retailer 3$3,197 AUD
Retailer 7$3,278 AUD
Retailer 2$3,354 AUD
Retailer 11$3,644 AUD
Retailer 12$3,851 AUD
Retailer 5$3,861 AUD
Retailer 6$3,952 AUD
Retailer 4$4,041 AUD
Wholesale Diamonds Direct$5,226 AUD

31 data points across 13 retailers

13 retailers$2,835 AUD to $4,041 AUD

A
Cheapest Retailer
-
$2,835 AUD
SGD 2,691 SGD
A
Retailer 2
-
$2,888 AUD
$2,029 USD
View
Retailer 3
-
$3,079 AUD
$2,163 USD
View
Price last confirmed 7 days ago
B+
Retailer 4
-
$3,089 AUD
$2,170 USD
View
Retailer 5
-
$3,197 AUD
$2,246 USD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
$3,278 AUD
£1,813 GBP
View
B+
Retailer 7
-
$3,354 AUD
SGD 3,184 SGD
View
Retailer 8
-
$3,644 AUD
$2,560 USD
View
Price last confirmed 8 days ago
B
Retailer 9
-
$3,851 AUD
$2,705 USD
View
B+
Retailer 10
-
$3,861 AUD
$2,712 USD
View
B+
Retailer 11
-
$3,952 AUD
€2,644 EUR
View
B
Retailer 12
-
$4,041 AUD
£2,235 GBP
View
Most Expensive
Wholesale Diamonds Direct
570928002 · Oct 23
$5,226 AUD
$3,671 USD
View
Price last confirmed 8 days ago
12 more retailers have this diamond
Prices start from $2,835 AUDSave up to $1,206 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
$2,835 AUD