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Radiant|Natural|GIA

0.80ct I SI2 Radiant Natural Diamond

VG • I/SI2 • GIA 1309121403

Certificate GIA 1309121403

Diamond specifications and retailer prices

From $1,189 AUD
$835 USD
As of October 28, 2026
Save $699 AUD (37%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,888 AUD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.8ct natural radiant diamond

This 0.8ct natural radiant sits in the just-under-one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1309121403. Listed at 3 retailers as of October 28, 2026, with prices from $1,189 to $1,888, a $699 spread on the same certified stone. 77 Diamonds lists it at $1,888. 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

0.80
Carat
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1309121403
Dimensions5.18 × 4.78 × 3.47 mm
L/W Ratio1.08
Cert comments
LOT-2180
Top View
5.18 mm4.78 mm0.80 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 1309121403
Side View
Table 67.0%CrownGirdle: VTK-ETKPavilionCuletDepth 72.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $1,888 AUD|Low: $1,189 AUD|High: $1,891 AUD|Avg: $1,521 AUD|+2.3%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 3$1,189 AUD
Retailer 2$1,492 AUD
77 Diamonds$1,888 AUD

38 data points across 3 retailers

3 retailers$1,189 AUD to $1,888 AUD

B+
Cheapest Retailer
-
$1,189 AUD
$835 USD
B+
Retailer 2
-
$1,492 AUD
$1,048 USD
View
Most Expensive
B+
77 Diamonds
RADZQCC5U6QJ · Nov 2
$1,888 AUD
£1,044 GBP
View
2 more retailers have this diamond
Prices start from $1,189 AUDSave up to $699 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+
0.80ct Radiant
$1,189 AUD