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Radiant|Natural|GIA

1.20ct J SI2 Radiant Natural Diamond

EX • J/SI2 • GIA 3535630146

Certificate GIA 3535630146

Diamond specifications and retailer prices

From $1,863 AUD
HK$10,200 HKD
As of November 2, 2026
Save $2,481 AUD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,047 AUD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3535630146. Listed at 16 retailers as of November 1, 2026, with a 133% 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

1.20
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3535630146
Dimensions7.17 × 5.46 × 3.75 mm
L/W Ratio1.31
Top View
7.17 mm5.46 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3535630146
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.8%

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 2
Current: $6,047 AUD|Low: $1,863 AUD|High: $6,047 AUD|Avg: $2,972 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
November 2, 2026
Retailer 6$1,863 AUD
Retailer 2$1,974 AUD
Retailer 9$2,274 AUD
Retailer 12$2,325 AUD
Retailer 3$2,479 AUD
Retailer 5$2,479 AUD
Retailer 4$2,609 AUD
Retailer 8$2,659 AUD
Retailer 10$2,761 AUD
Retailer 13$2,861 AUD
Retailer 7$3,365 AUD
Retailer 11$4,344 AUD
NZ Jewellers$6,047 AUD

34 data points across 13 retailers

16 retailers$1,863 AUD to $4,344 AUD

A
Cheapest Retailer
-
$1,863 AUD
HK$10,200 HKD
A
Retailer 2
-
$1,974 AUD
₹131,764 INR
View
A
Retailer 3
-
$2,274 AUD
$1,594 USD
View
Final sale: no returns
A
Retailer 4
-
$2,325 AUD
SGD 2,202 SGD
View
A
Retailer 5
-
$2,374 AUD
$1,664 USD
View
Retailer 6
-
$2,479 AUD
$1,737 USD
View
Price last confirmed 17 days ago
Retailer 7
-
$2,479 AUD
$1,737 USD
View
Price last confirmed 15 days ago
Retailer 8
-
$2,594 AUD
$1,818 USD
View
Price last confirmed 17 days ago
B+
Retailer 9
-
$2,609 AUD
SGD 2,471 SGD
View
B+
Retailer 10
-
$2,659 AUD
$1,863 USD
View
B+
Retailer 11
-
$2,761 AUD
£1,524 GBP
View
B+
Retailer 12
-
$2,771 AUD
View
Retailer 13
-
$2,861 AUD
$2,005 USD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
$3,365 AUD
€2,246 EUR
View
B
Retailer 15
-
$4,344 AUD
£2,397 GBP
View
Most Expensive
NZ Jewellers
bf162b5a-0506-4079-a41f-b7119dbcf0d0 · Oct 17
$6,047 AUD
$4,238 USD
View
Price last confirmed 15 days ago
15 more retailers have this diamond
Prices start from $1,863 AUDSave up to $2,481 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
$1,863 AUD