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Radiant|Natural|GIA

1.53ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 1909

Certificate GIA 1909

Diamond specifications and retailer prices

From $15,794 AUD
As of November 6, 2026
Save $1,582 AUD (9%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $17,376 AUD at DreamStone · As of November 4, 2026
View at DreamStone

About this 1.53ct natural radiant diamond

This 1.53ct 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 2 retailers as of November 4, 2026, with a relatively tight 10% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.53
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1909
Dimensions7.28 × 5.28 mm
L/W Ratio1.38
Top View
7.28 mm5.28 mm1.53 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1909
Side View
Table 68.0%CrownGirdle: XTN-THKPavilionCulet: NoneDepth 72.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $17,376 AUD|Low: $15,794 AUD|High: $17,376 AUD|Avg: $16,848 AUD
DreamStone
Retailer 2
September 28, 2026
Retailer 2$15,794 AUD
DreamStone$17,376 AUD

2 data points across 2 retailers

2 retailers$15,794 AUD to $17,376 AUD

B
Cheapest Retailer
-
$15,794 AUD
Most Expensive
C
DreamStone
600349c19e99f910f97998dd · Nov 4
$17,376 AUD
$11,939 USD
View
1 more retailer has this diamond
Prices start from $15,794 AUDSave up to $1,582 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.

B
1.53ct Radiant
$15,794 AUD