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Radiant|Natural|GIA

0.80ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 6465066354

Certificate GIA 6465066354

Diamond specifications and retailer prices

From $4,198 AUD
$2,942 USD
As of November 1, 2026
Save $1,763 AUD (30%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,239 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.8ct natural radiant diamond

This 0.8ct natural radiant sits in the just-under-one-carat band, graded H 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 6465066354. Listed at 11 retailers as of November 1, 2026, with a 42% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.80
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6465066354
Dimensions6.00 × 4.92 × 3.26 mm
L/W Ratio1.22
Girdle conditionPolished
Key to symbols
Feather
Top View
6.00 mm4.92 mm0.80 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6465066354
Side View
Table 70.0%CrownGirdle: MED-STKPavilionCuletDepth 66.3%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $8,239 AUD|Low: $4,198 AUD|High: $8,239 AUD|Avg: $5,849 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8$4,198 AUD
Retailer 9$4,573 AUD
Retailer 12$4,729 AUD
Retailer 11$4,910 AUD
Retailer 10$5,052 AUD
Retailer 3$5,456 AUD
Retailer 5$5,535 AUD
Retailer 4$5,558 AUD
Retailer 2$5,961 AUD
Retailer 7$7,043 AUD
Retailer 6$7,908 AUD
NZ Jewellers$8,239 AUD

43 data points across 12 retailers

11 retailers$4,198 AUD to $5,961 AUD

B
Cheapest Retailer
-
$4,198 AUD
$2,942 USD
B
Retailer 2
-
$4,573 AUD
$3,205 USD
View
B
Retailer 3
-
$4,729 AUD
$3,314 USD
View
B
Retailer 4
-
$4,910 AUD
$3,441 USD
View
Retailer 5
-
$5,052 AUD
View
Price last confirmed 25 days ago
B
Retailer 6
-
$5,456 AUD
$3,824 USD
View
B
Retailer 7
-
$5,535 AUD
€3,694 EUR
View
B
Retailer 8
-
$5,961 AUD
£3,290 GBP
View
Retailer 9
-
$7,043 AUD
ZAR 79,741 ZAR
View
Price under review
Retailer 10
-
$7,908 AUD
£4,364 GBP
View
Price under review
Most Expensive
NZ Jewellers
b1d3eed7-ecac-4c37-b203-2c3f009f45bc · Oct 30
$8,239 AUD
$5,774 USD
View
Price under review
10 more retailers have this diamond
Prices start from $4,198 AUDSave up to $1,763 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
$4,198 AUD