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Radiant|Natural|GIA

1.20ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 2447669421

Certificate GIA 2447669421

Diamond specifications and retailer prices

From $4,695 AUD
$3,290 USD
As of November 1, 2026
Save $5,476 AUD (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $10,171 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2447669421. Listed at 17 retailers as of October 30, 2026, with prices from $4,695 to $10,171, a $5,476 spread on the same certified stone. NZ Jewellers lists it at $10,171. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2447669421
Dimensions6.83 × 5.30 × 3.65 mm
L/W Ratio1.29
Top View
6.83 mm5.30 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2447669421
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.9%

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: $5,694 AUD|Low: $4,967 AUD|High: $9,880 AUD|Avg: $6,462 AUD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 7$4,967 AUD
Retailer 9$5,492 AUD
Retailer 1$5,694 AUD
Retailer 3$5,972 AUD
Retailer 6$5,997 AUD
Retailer 8$6,259 AUD
Retailer 2$6,604 AUD
Retailer 5$7,176 AUD
Retailer 4$9,762 AUD

37 data points across 9 retailers

17 retailers$4,695 AUD to $10,171 AUD

B+
Cheapest Retailer
-
$4,695 AUD
$3,290 USD
B+
Retailer 2
-
$4,967 AUD
$3,481 USD
View
B
Retailer 3
-
$5,288 AUD
$3,706 USD
View
B
Retailer 4
-
$5,492 AUD
$3,849 USD
View
B
Retailer 5
-
$5,694 AUD
£3,142 GBP
View
B
Retailer 6
-
$5,972 AUD
£3,295 GBP
View
B
Retailer 7
-
$5,979 AUD
$4,190 USD
View
B
Retailer 8
-
$5,979 AUD
$4,190 USD
View
B
Retailer 9
-
$5,997 AUD
$4,203 USD
View
B
Retailer 10
-
$6,103 AUD
$4,277 USD
View
B
Retailer 11
-
$6,178 AUD
$4,330 USD
View
Retailer 12
-
$6,259 AUD
View
Price last confirmed 29 days ago
B
Retailer 13
-
$6,604 AUD
€4,408 EUR
View
Retailer 14
-
$6,607 AUD
$4,630 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
$7,176 AUD
ZAR 81,243 ZAR
View
B
Retailer 16
-
$9,762 AUD
£5,387 GBP
View
Most Expensive
B
NZ Jewellers
fa093de3-088d-40cf-959a-81fa88147d54 · Oct 30
$10,171 AUD
$7,128 USD
View
16 more retailers have this diamond
Prices start from $4,695 AUDSave up to $5,476 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
$4,695 AUD