CaratHunter
Plans
Radiant|Natural|GIA

1.20ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 3545664800

Certificate GIA 3545664800

Diamond specifications and retailer prices

From $4,551 AUD
$3,197 USD
As of November 1, 2026
Save $5,309 AUD (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $9,860 AUD at NZ Jewellers · As of October 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 3545664800. Listed at 22 retailers as of October 30, 2026, with prices from $4,551 to $9,860, a $5,309 spread on the same certified stone. NZ Jewellers lists it at $9,860. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3545664800
Dimensions7.41 × 5.07 × 3.49 mm
L/W Ratio1.46
Top View
7.41 mm5.07 mm1.20 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3545664800
Side View
Table 71.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $9,860 AUD|Low: $4,338 AUD|High: $9,860 AUD|Avg: $6,355 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
Retailer 14
Retailer 15
November 2, 2026
Retailer 13$4,551 AUD
Retailer 12$4,732 AUD
Retailer 14$4,815 AUD
Retailer 4$5,126 AUD
Retailer 5$5,126 AUD
Retailer 3$5,324 AUD
Retailer 8$5,789 AUD
Retailer 6$5,915 AUD
Retailer 15$6,068 AUD
Retailer 2$6,404 AUD
Retailer 7$6,406 AUD
Retailer 10$6,956 AUD
Retailer 11$8,178 AUD
Retailer 9$9,465 AUD
NZ Jewellers$9,860 AUD

44 data points across 15 retailers

22 retailers$4,551 AUD to $9,860 AUD

B
Cheapest Retailer
-
$4,551 AUD
$3,197 USD
B
Retailer 2
-
$4,707 AUD
View
B
Retailer 3
-
$4,732 AUD
$3,324 USD
View
Final sale: no returns
B+
Retailer 4
-
$4,815 AUD
$3,382 USD
View
B
Retailer 5
-
$4,926 AUD
$3,460 USD
View
B
Retailer 6
-
$5,126 AUD
$3,601 USD
View
B
Retailer 7
-
$5,126 AUD
$3,601 USD
View
B
Retailer 8
-
$5,324 AUD
$3,740 USD
View
B
Retailer 9
-
$5,576 AUD
$3,917 USD
View
B
Retailer 10
-
$5,766 AUD
$4,050 USD
View
B
Retailer 11
-
$5,789 AUD
£3,202 GBP
View
B
Retailer 12
-
$5,794 AUD
$4,070 USD
View
B
Retailer 13
-
$5,794 AUD
$4,070 USD
View
B
Retailer 14
-
$5,915 AUD
$4,155 USD
View
B
Retailer 15
-
$5,993 AUD
$4,210 USD
View
B
Retailer 16
-
$6,057 AUD
$4,255 USD
View
Retailer 17
-
$6,068 AUD
View
Price last confirmed 29 days ago
B
Retailer 18
-
$6,404 AUD
€4,284 EUR
View
B
Retailer 19
-
$6,956 AUD
ZAR 78,938 ZAR
View
C
Retailer 20
-
$8,178 AUD
$5,745 USD
View
B
Retailer 21
-
$9,465 AUD
£5,235 GBP
View
Most Expensive
C
NZ Jewellers
f403a4be-5530-46da-ba1d-128c7e4ea63f · Oct 30
$9,860 AUD
$6,926 USD
View
21 more retailers have this diamond
Prices start from $4,551 AUDSave up to $5,309 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.

B+
1.20ct Radiant
$4,551 AUD