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Radiant|Natural|GIA

1.20ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 6243078579

Certificate GIA 6243078579

Diamond specifications and retailer prices

From $3,260 AUD
As of November 6, 2026
Save $4,509 AUD (58%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $7,769 AUD at NZ Jewellers · As of November 5, 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 H 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 6243078579. Listed at 10 retailers as of November 5, 2026, with prices from $3,260 to $7,769, a $4,509 spread on the same certified stone. NZ Jewellers lists it at $7,769. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle62.46°
OriginNatural
Grading LabGIA
CertificateGIA 6243078579
Dimensions7.00 × 5.37 × 3.73 mm
L/W Ratio1.30
Key to symbols
Crystal, Needle
Top View
7.00 mm5.37 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6243078579
Side View
Table 62.0%CrownGirdle: ThickPavilion 62.46°Culet: NoneDepth 69.4%

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: $7,769 AUD|Low: $3,260 AUD|High: $8,104 AUD|Avg: $5,392 AUD|-4.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3$3,260 AUD
Retailer 4$4,279 AUD
Retailer 8$4,459 AUD
Retailer 5$4,525 AUD
Retailer 2$4,580 AUD
Retailer 9$4,833 AUD
Retailer 7$5,276 AUD
Retailer 10$6,891 AUD
Retailer 6$7,437 AUD
NZ Jewellers$7,769 AUD

31 data points across 10 retailers

10 retailers$3,260 AUD to $7,769 AUD

A
Cheapest Retailer
-
$3,260 AUD
B+
Retailer 2
-
$4,279 AUD
View
B+
Retailer 3
-
$4,459 AUD
View
B+
Retailer 4
-
$4,525 AUD
View
B+
Retailer 5
-
$4,580 AUD
View
B+
Retailer 6
-
$4,833 AUD
View
B+
Retailer 7
-
$5,276 AUD
View
Retailer 8
-
$6,891 AUD
View
Price last confirmed 17 days ago
B
Retailer 9
-
$7,437 AUD
View
Most Expensive
B
NZ Jewellers
d2cdbb5c-de44-45f6-a0c2-4a37f92a3f19 · Nov 5
$7,769 AUD
$5,338 USD
View
9 more retailers have this diamond
Prices start from $3,260 AUDSave up to $4,509 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
$3,260 AUD