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Radiant|Natural|GIA

1.05ct F SI2 Radiant Natural Diamond

ID • F/SI2 • GIA 6551511426

Certificate GIA 6551511426

Diamond specifications and retailer prices

From $2,155 AUD
HK$11,800 HKD
As of November 1, 2026
Save $4,627 AUD (68%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,782 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.05ct natural radiant diamond

This 1.05ct natural radiant sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551511426. Listed at 13 retailers as of October 30, 2026, with prices from $2,155 to $6,782, a $4,627 spread on the same certified stone. NZ Jewellers lists it at $6,782. 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

1.05
Carat
F
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551511426
Dimensions7.29 × 5.01 × 3.45 mm
L/W Ratio1.46
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
7.29 mm5.01 mm1.05 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551511426
Side View
Table 66.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 68.8%

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 1
Current: $6,782 AUD|Low: $2,090 AUD|High: $6,782 AUD|Avg: $3,190 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7$2,155 AUD
Retailer 2$2,175 AUD
Retailer 11$2,567 AUD
Retailer 5$2,749 AUD
Retailer 10$2,781 AUD
Retailer 12$2,841 AUD
Retailer 9$2,908 AUD
Retailer 3$2,986 AUD
Retailer 4$3,044 AUD
Retailer 8$3,208 AUD
Retailer 6$4,871 AUD
NZ Jewellers$6,782 AUD

42 data points across 12 retailers

13 retailers$2,155 AUD to $6,782 AUD

A
Cheapest Retailer
-
$2,155 AUD
HK$11,800 HKD
A
Retailer 2
-
$2,175 AUD
₹145,149 INR
View
A
Retailer 3
-
$2,567 AUD
$1,799 USD
View
Final sale: no returns
A
Retailer 4
-
$2,749 AUD
£1,517 GBP
View
A
Retailer 5
-
$2,781 AUD
$1,949 USD
View
A
Retailer 6
-
$2,841 AUD
$1,991 USD
View
A
Retailer 7
-
$2,908 AUD
$2,038 USD
View
A
Retailer 8
-
$2,986 AUD
SGD 2,828 SGD
View
A
Retailer 9
-
$3,044 AUD
$2,133 USD
View
A
Retailer 10
-
$3,096 AUD
View
A
Retailer 11
-
$3,208 AUD
$2,248 USD
View
B+
Retailer 12
-
$4,871 AUD
£2,688 GBP
View
Most Expensive
B
NZ Jewellers
43c1ca4a-2d18-4d67-a624-6c6a5a43d327 · Oct 30
$6,782 AUD
$4,753 USD
View
12 more retailers have this diamond
Prices start from $2,155 AUDSave up to $4,627 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
1.05ct Radiant
$2,155 AUD