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Radiant|Natural|GIA

1.54ct I SI1 Radiant Natural Diamond

ID • I/SI1 • GIA 08

Certificate GIA 08

Diamond specifications and retailer prices

From $7,703 AUD
As of November 6, 2026
Save $1,813 AUD (19%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $9,517 AUD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.54ct natural radiant diamond

This 1.54ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-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 4 retailers as of November 5, 2026, with prices from $7,703 to $9,517, a $1,813 spread on the same certified stone. Blue Nile lists it at $9,517. 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

1.54
Carat
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 08
Dimensions7.80 × 5.73 × 3.98 mm
L/W Ratio1.36
Top View
7.80 mm5.73 mm1.54 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 08
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.4%

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 6
Current: $9,517 AUD|Low: $7,703 AUD|High: $17,201 AUD|Avg: $10,302 AUD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 8, 2026
Retailer 3$7,703 AUD
Retailer 7$8,235 AUD
Retailer 4$9,317 AUD
Retailer 2$9,387 AUD
Blue Nile$9,517 AUD
Retailer 6$10,751 AUD
Retailer 5$17,201 AUD

2 data points across 7 retailers

4 retailers$7,703 AUD to $9,517 AUD

A
Cheapest Retailer
-
$7,703 AUD
B+
Retailer 2
-
$8,235 AUD
View
B+
Retailer 3
-
$9,387 AUD
View
Most Expensive
B+
Blue Nile
26367554 · Nov 5
$9,517 AUD
$6,539 USD
View
3 more retailers have this diamond
Prices start from $7,703 AUDSave up to $1,813 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
1.54ct Radiant
$7,703 AUD