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Radiant|Natural|GIA

1.20ct J SI2 Radiant Natural Diamond

VG • J/SI2 • GIA 3565412188

Certificate GIA 3565412188

Diamond specifications and retailer prices

From $2,636 AUD
SGD 2,496 SGD
As of October 31, 2026
Save $2,170 AUD (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,806 AUD at Helzberg Diamonds · As of November 1, 2026
View at Helzberg Diamonds

About this 1.2ct natural radiant diamond

This 1.2ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3565412188. Listed at 12 retailers as of October 31, 2026, with prices from $2,636 to $4,806, a $2,170 spread on the same certified stone. Helzberg Diamonds lists it at $4,806. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
J
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3565412188
Dimensions7.05 × 5.25 × 3.62 mm
L/W Ratio1.34
Culet sizeNone
Top View
7.05 mm5.25 mm1.20 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3565412188
Side View
Table 68.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 69.0%

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: $4,806 AUD|Low: $2,636 AUD|High: $5,344 AUD|Avg: $3,534 AUD|-10.1%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 3$2,636 AUD
Retailer 10$2,660 AUD
Retailer 8$2,683 AUD
Retailer 6$2,704 AUD
Retailer 12$2,922 AUD
Retailer 5$2,963 AUD
Retailer 9$3,199 AUD
Retailer 7$3,366 AUD
Retailer 11$3,440 AUD
Retailer 2$3,782 AUD
Retailer 4$4,641 AUD
Helzberg Diamonds$4,806 AUD

31 data points across 12 retailers

12 retailers$2,636 AUD to $4,806 AUD

A
Cheapest Retailer
-
$2,636 AUD
SGD 2,496 SGD
A
Retailer 2
-
$2,660 AUD
$1,864 USD
View
A
Retailer 3
-
$2,683 AUD
$1,880 USD
View
A
Retailer 4
-
$2,704 AUD
$1,895 USD
View
B+
Retailer 5
-
$2,922 AUD
SGD 2,767 SGD
View
B+
Retailer 6
-
$2,963 AUD
£1,635 GBP
View
B+
Retailer 7
-
$3,199 AUD
$2,242 USD
View
B+
Retailer 8
-
$3,366 AUD
$2,359 USD
View
B+
Retailer 9
-
$3,440 AUD
$2,411 USD
View
B
Retailer 10
-
$3,782 AUD
€2,524 EUR
View
B
Retailer 11
-
$4,641 AUD
$3,252 USD
View
Most Expensive
B
Helzberg Diamonds
XZRJLMLKHIHOO · Nov 1
$4,806 AUD
$3,368 USD
View
11 more retailers have this diamond
Prices start from $2,636 AUDSave up to $2,170 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
1.20ct Radiant
$2,636 AUD