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Radiant|Natural|GIA

1.01ct D SI1 Radiant Natural Diamond

ID • D/SI1 • GIA 2558442248

Certificate GIA 2558442248

Diamond specifications and retailer prices

From $2,749 AUD
As of November 2, 2026
Save $2,189 AUD (44%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,028 AUD at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 1.01ct natural radiant diamond

This 1.01ct natural radiant sits in the classic one-carat band, graded D 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 2558442248. Listed at 11 retailers as of November 2, 2026, with a 80% 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

1.01
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle55.26°
Pavilion angle36.14°
OriginNatural
Grading LabGIA
CertificateGIA 2558442248
Dimensions6.40 × 5.01 × 3.52 mm
L/W Ratio1.28
Girdle conditionThick
Key to symbols
Crystal, Feather, Indented Natural, Needle
Top View
6.40 mm5.01 mm1.01 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2558442248
Side View
Table 74.0%Crown 55.26°GirdlePavilion 36.14°CuletDepth 70.3%

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 2
Current: $7,028 AUD|Low: $2,748 AUD|High: $7,028 AUD|Avg: $3,994 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 2$2,749 AUD
Retailer 6$2,800 AUD
Retailer 4$2,823 AUD
Retailer 5$2,853 AUD
Retailer 7$3,726 AUD
Retailer 3$4,938 AUD
NZ Jewellers$7,028 AUD

37 data points across 7 retailers

11 retailers$2,749 AUD to $4,938 AUD

A
Cheapest Retailer
-
$2,749 AUD
A
Retailer 2
-
$2,800 AUD
View
A
Retailer 3
-
$2,823 AUD
View
Retailer 4
-
$2,841 AUD
View
Price last confirmed 31 days ago
A
Retailer 5
-
$2,853 AUD
View
Retailer 6
-
$2,882 AUD
View
Price last confirmed 46 days ago
Retailer 7
-
$2,988 AUD
View
Price last confirmed 37 days ago
Retailer 8
-
$3,726 AUD
View
Price last confirmed 33 days ago
B+
Retailer 9
-
$4,938 AUD
View
Retailer 10
-
$6,966 AUD
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
5a16a41e-944b-44be-b1e8-6da4a9d6a57e · Sep 20
$7,028 AUD
$4,829 USD
View
Price last confirmed 47 days ago
10 more retailers have this diamond
Prices start from $2,749 AUDSave up to $2,189 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.

A
1.01ct Radiant
$2,749 AUD