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Radiant|Natural|GIA

1.53ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 5151548974

Certificate GIA 5151548974

Diamond specifications and retailer prices

From $17,105 AUD
As of November 6, 2026
Save $3,626 AUD (17%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $20,731 AUD at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

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 5151548974. Listed at 2 retailers as of November 6, 2026, with prices from $17,105 to $20,731, a $3,626 spread on the same certified stone. 77 Diamonds lists it at $20,731. 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 5151548974
Dimensions7.28 × 5.28 × 4.23 mm
L/W Ratio1.38
Top View
7.28 mm5.28 mm1.53 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5151548974
Side View
Table 68.0%CrownGirdlePavilionCuletDepth 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: $20,731 AUD|Low: $20,561 AUD|High: $21,073 AUD|Avg: $20,897 AUD|+0.8%
November 7, 2026
77 Diamonds$20,731 AUD

33 data points across 1 retailer

2 retailers$17,105 AUD to $20,731 AUD

B
Cheapest Retailer
-
$17,105 AUD
Most Expensive
C
77 Diamonds
RADZRQKPNNTD · Nov 7
$20,731 AUD
£11,216 GBP
View
1 more retailer has this diamond
Prices start from $17,105 AUDSave up to $3,626 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
$17,105 AUD