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Radiant|Natural|GIA

1.30ct F SI2 Radiant Natural Diamond

VG • F/SI2 • GIA 1553348475

Certificate GIA 1553348475

Diamond specifications and retailer prices

From $4,307 AUD
As of November 5, 2026
Save $821 AUD (16%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $5,127 AUD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.3ct natural radiant diamond

This 1.3ct natural radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1553348475. Listed at 3 retailers as of November 5, 2026, with prices from $4,307 to $5,127, a $821 spread on the same certified stone. Blue Nile lists it at $5,127. 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

1.30
Carat
F
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle47.4°
Pavilion angle55.4°
OriginNatural
Grading LabGIA
CertificateGIA 1553348475
Dimensions7.84 × 5.58 × 3.79 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.84 mm5.58 mm1.30 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1553348475
Side View
Table 68.0%Crown 47.4°Girdle: STK-THKPavilion 55.4°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: $5,127 AUD|Low: $4,280 AUD|High: $5,156 AUD|Avg: $4,662 AUD|+0.3%
Blue Nile
Retailer 2
Retailer 3
November 7, 2026
Retailer 3$4,307 AUD
Retailer 2$4,570 AUD
Blue Nile$5,127 AUD

40 data points across 3 retailers

3 retailers$4,307 AUD to $5,127 AUD

A
Cheapest Retailer
-
$4,307 AUD
A
Retailer 2
-
$4,570 AUD
View
Most Expensive
A
Blue Nile
29347747 · Nov 5
$5,127 AUD
$3,523 USD
View
2 more retailers have this diamond
Prices start from $4,307 AUDSave up to $821 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
1.30ct Radiant
$4,307 AUD