Radiant|Natural|GIA

1.20ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 2556242987

Certificate GIA 2556242987

Diamond specifications and retailer prices

From $7,248 AUD
As of November 7, 2026
Save $5,189 AUD (42%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $14,196 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 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 2556242987. Listed at 11 retailers as of November 7, 2026, with a 72% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556242987
Dimensions8.01 × 4.95 × 3.41 mm
L/W Ratio1.62
Culet sizeNone
Top View
8.01 mm4.95 mm1.20 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556242987
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.8%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 7
Current: $14,196 AUD|Low: $7,545 AUD|High: $14,196 AUD|Avg: $10,222 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 4$7,545 AUD
Retailer 6$8,198 AUD
Retailer 2$8,289 AUD
Retailer 7$8,383 AUD
Retailer 10$8,546 AUD
Retailer 8$8,815 AUD
Retailer 3$9,026 AUD
Retailer 9$10,357 AUD
Retailer 5$12,436 AUD
NZ Jewellers$14,196 AUD

36 data points across 10 retailers

11 retailers$7,248 AUD to $12,436 AUD

B
Cheapest Retailer
-
$7,248 AUD
Retailer 2
-
$7,545 AUD
View
B
Retailer 3
-
$8,198 AUD
View
B
Retailer 4
-
$8,289 AUD
View
B
Retailer 5
-
$8,383 AUD
View
Retailer 6
-
$8,546 AUD
View
Price last confirmed 34 days ago
B
Retailer 7
-
$8,815 AUD
View
Retailer 8
-
$9,026 AUD
View
B
Retailer 9
-
$10,357 AUD
View
B
Retailer 10
-
$12,436 AUD
View
Most Expensive
NZ Jewellers
8dff9ef4-0ec0-42f9-87a1-6430ce89f376 · Nov 5
$14,196 AUD
$9,754 USD
View
Price under review
10 more retailers have this diamond
Prices start from $7,248 AUDSave up to $5,189 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
$7,248 AUD