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Radiant|Natural|GIA

1.04ct E SI1 Radiant Natural Diamond

ID • E/SI1 • GIA 253

Certificate GIA 253

Diamond specifications and retailer prices

From $4,164 AUD
As of November 4, 2026
Save $859 AUD (17%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $5,023 AUD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.04ct natural radiant diamond

This 1.04ct natural radiant sits in the classic one-carat band, graded E 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. Listed at 3 retailers as of November 4, 2026, with prices from $4,164 to $5,023, a $859 spread on the same certified stone. Blue Nile lists it at $5,023. 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

1.04
Carat
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 253
Dimensions5.83 × 5.46 × 3.70 mm
L/W Ratio1.07
Top View
5.83 mm5.46 mm1.04 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 253
Side View
Table 68.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.7%

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 4
Current: $5,023 AUD|Low: $4,164 AUD|High: $5,023 AUD|Avg: $4,423 AUD
Blue Nile
Retailer 2
Retailer 3
September 23, 2026
Retailer 3$4,164 AUD
Retailer 2$4,244 AUD
Blue Nile$5,023 AUD

3 data points across 3 retailers

3 retailers$4,164 AUD to $5,023 AUD

A
Cheapest Retailer
-
$4,164 AUD
B+
Retailer 2
-
$4,244 AUD
View
Most Expensive
B
Blue Nile
14101854 · Nov 5
$5,023 AUD
$3,451 USD
View
2 more retailers have this diamond
Prices start from $4,164 AUDSave up to $859 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
1.04ct Radiant
$4,164 AUD