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Radiant|Natural|GIA

1.20ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 7548286172

Certificate GIA 7548286172

Diamond specifications and retailer prices

From $1,918 AUD
As of November 6, 2026
Save $2,726 AUD (59%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $6,555 AUD at NZ Jewellers · As of September 30, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7548286172. Listed at 19 retailers as of November 2, 2026, with a 142% 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7548286172
Dimensions6.89 × 5.29 × 3.70 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Needle, Indented Natural
Top View
6.89 mm5.29 mm1.20 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 7548286172
Side View
Table 70.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.8%

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 6
Current: $2,819 AUD|Low: $1,918 AUD|High: $4,752 AUD|Avg: $2,921 AUD|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 5$1,918 AUD
Retailer 4$2,026 AUD
Retailer 8$2,343 AUD
Retailer 9$2,512 AUD
Retailer 3$2,649 AUD
Retailer 6$2,674 AUD
Retailer 1$2,819 AUD
Retailer 2$3,250 AUD
Retailer 7$3,451 AUD
Retailer 10$4,644 AUD

32 data points across 10 retailers

19 retailers$1,918 AUD to $4,644 AUD

A
Cheapest Retailer
-
$1,918 AUD
A
Retailer 2
-
$2,026 AUD
View
A
Retailer 3
-
$2,343 AUD
View
Final sale: no returns
A
Retailer 4
-
$2,512 AUD
View
A
Retailer 5
-
$2,537 AUD
View
A
Retailer 6
-
$2,540 AUD
View
A
Retailer 7
-
$2,649 AUD
View
A
Retailer 8
-
$2,674 AUD
View
Retailer 9
-
$2,688 AUD
View
Price last confirmed 30 days ago
Retailer 10
-
$2,688 AUD
View
Price last confirmed 30 days ago
Retailer 11
-
$2,812 AUD
View
Price last confirmed 38 days ago
B+
Retailer 12
-
$2,819 AUD
View
B+
Retailer 13
-
$2,883 AUD
View
Retailer 14
-
$3,101 AUD
View
Price last confirmed 29 days ago
Retailer 15
-
$3,250 AUD
View
Price last confirmed 12 days ago
B+
Retailer 16
-
$3,451 AUD
View
Retailer 17
-
$3,506 AUD
View
Price last confirmed 33 days ago
B
Retailer 18
-
$4,644 AUD
View
Most Expensive
NZ Jewellers
1f2a95a9-fe07-47c0-9727-c1747871d050 · Sep 30
$6,555 AUD
$4,504 USD
View
Price last confirmed 37 days ago
18 more retailers have this diamond
Prices start from $1,918 AUDSave up to $2,726 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
$1,918 AUD