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Radiant|Natural|GIA

1.25ct F SI1 Radiant Natural Diamond

VG • F/SI1 • GIA 6552205527

Certificate GIA 6552205527

Diamond specifications and retailer prices

From $4,899 AUD
As of November 4, 2026
Save $5,440 AUD (53%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $11,421 AUD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.25ct natural radiant diamond

This 1.25ct natural radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552205527. Listed at 24 retailers as of November 4, 2026, with a 111% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.25
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.7°
Pavilion angle56.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552205527
Dimensions7.38 × 5.38 × 3.56 mm
L/W Ratio1.37
Top View
7.38 mm5.38 mm1.25 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552205527
Side View
Table 66.0%Crown 41.7°Girdle: ThickPavilion 56.8°Culet: NoneDepth 66.0%

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 4
Current: $6,373 AUD|Low: $4,739 AUD|High: $10,565 AUD|Avg: $6,622 AUD|-1.6%
Retailer 1
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 7, 2026
Retailer 7$4,899 AUD
Retailer 13$5,167 AUD
Retailer 3$5,203 AUD
Retailer 22$5,338 AUD
Retailer 5$5,410 AUD
Retailer 4$5,459 AUD
Retailer 6$5,554 AUD
Retailer 2$5,632 AUD
Retailer 16$6,287 AUD
Retailer 1$6,373 AUD
Retailer 14$6,608 AUD
Retailer 18$6,612 AUD
Retailer 8$6,666 AUD
Retailer 9$6,666 AUD
Retailer 10$6,848 AUD
Retailer 11$6,884 AUD
Retailer 12$6,951 AUD
Retailer 19$7,344 AUD
Retailer 15$7,414 AUD
Retailer 21$7,760 AUD
Retailer 20$7,964 AUD
Retailer 17$10,339 AUD

26 data points across 22 retailers

24 retailers$4,899 AUD to $10,339 AUD

A
Cheapest Retailer
-
$4,899 AUD
A
Retailer 2
-
$5,203 AUD
View
A
Retailer 3
-
$5,338 AUD
View
A
Retailer 4
-
$5,410 AUD
View
A
Retailer 5
-
$5,459 AUD
View
Final sale: no returns
B+
Retailer 6
-
$5,554 AUD
View
A
Retailer 7
-
$5,632 AUD
View
Retailer 8
-
$5,938 AUD
View
Price last confirmed 40 days ago
Retailer 9
-
$6,287 AUD
View
B+
Retailer 10
-
$6,373 AUD
View
Retailer 11
-
$6,608 AUD
View
Price last confirmed 29 days ago
B+
Retailer 12
-
$6,612 AUD
View
B+
Retailer 13
-
$6,666 AUD
View
B+
Retailer 14
-
$6,666 AUD
View
B+
Retailer 15
-
$6,848 AUD
View
Retailer 16
-
$6,852 AUD
View
Price last confirmed 39 days ago
B+
Retailer 17
-
$6,884 AUD
View
Retailer 18
-
$6,951 AUD
View
B+
Retailer 19
-
$7,344 AUD
View
Retailer 20
-
$7,414 AUD
View
Price last confirmed 24 days ago
B+
Retailer 21
-
$7,760 AUD
View
B
Retailer 22
-
$7,964 AUD
View
B
Retailer 23
-
$10,339 AUD
View
Most Expensive
NZ Jewellers
178ccfc9-403f-4745-bf10-d08ceef86d08 · Sep 30
$11,421 AUD
$7,847 USD
View
Price last confirmed 37 days ago
23 more retailers have this diamond
Prices start from $4,899 AUDSave up to $5,440 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
1.25ct Radiant
$4,899 AUD