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Radiant|Natural|GIA

1.20ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 7513903289

Certificate GIA 7513903289

Diamond specifications and retailer prices

From $2,957 AUD
As of November 5, 2026
Save $2,495 AUD (46%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,584 AUD at NZ Jewellers · As of September 28, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7513903289. Listed at 10 retailers as of November 1, 2026, with a 84% 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle51.28°
Pavilion angle28.81°
OriginNatural
Grading LabGIA
CertificateGIA 7513903289
Dimensions6.51 × 5.12 × 3.59 mm
L/W Ratio1.27
Girdle conditionThick
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural, Natural
Top View
6.51 mm5.12 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7513903289
Side View
Table 65.0%Crown 51.28°GirdlePavilion 28.81°CuletDepth 70.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $2,957 AUD|Low: $2,874 AUD|High: $5,583 AUD|Avg: $3,774 AUD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 1$2,957 AUD
Retailer 3$3,035 AUD
Retailer 2$3,173 AUD
Retailer 5$3,826 AUD
Retailer 4$5,452 AUD

42 data points across 5 retailers

10 retailers$2,957 AUD to $5,452 AUD

A
Cheapest Retailer
-
$2,957 AUD
A
Retailer 2
-
$3,035 AUD
View
Retailer 3
-
$3,112 AUD
View
Price last confirmed 30 days ago
Retailer 4
-
$3,149 AUD
View
Price last confirmed 42 days ago
A
Retailer 5
-
$3,173 AUD
View
Retailer 6
-
$3,295 AUD
View
Price last confirmed 38 days ago
Retailer 7
-
$3,826 AUD
View
Price last confirmed 32 days ago
B
Retailer 8
-
$5,452 AUD
View
Retailer 9
-
$6,507 AUD
View
Price last confirmed 35 days ago
Most Expensive
NZ Jewellers
528b5ea0-9189-4a0a-a937-0f0f59e73040 · Sep 28
$6,584 AUD
$4,524 USD
View
Price last confirmed 40 days ago
9 more retailers have this diamond
Prices start from $2,957 AUDSave up to $2,495 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
$2,957 AUD