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Round|Natural|GIA

0.80ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1389368358

Certificate GIA 1389368358

Diamond specifications and retailer prices

From $1,400 AUD
As of November 6, 2026
Save $3,165 AUD (69%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,566 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.8ct natural round diamond

This 0.8ct natural round sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1389368358. Listed at 18 retailers as of November 5, 2026, with prices from $1,400 to $4,566, a $3,165 spread on the same certified stone. NZ Jewellers lists it at $4,566. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1389368358
Dimensions5.89 × 5.93 × 3.70 mm
L/W Ratio1.01
Top View
5.89 mm5.93 mm0.80 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1389368358
Side View
Table 57.0%Crown 35.5°Girdle: NULPavilion 40.8°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,400 AUD|Low: $1,400 AUD|High: $3,465 AUD|Avg: $2,376 AUD|-4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$1,400 AUD
Retailer 3$2,091 AUD
Retailer 5$2,235 AUD
Retailer 2$2,346 AUD
Retailer 4$2,452 AUD
Retailer 6$2,768 AUD
Retailer 7$3,419 AUD

27 data points across 7 retailers

18 retailers$1,400 AUD to $4,566 AUD

A
Cheapest Retailer
-
$1,400 AUD
A
Retailer 2
-
$1,671 AUD
View
A
Retailer 3
-
$1,728 AUD
View
Final sale: no returns
A
Retailer 4
-
$1,735 AUD
View
Retailer 5
-
$1,872 AUD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$1,872 AUD
View
B+
Retailer 7
-
$1,944 AUD
View
B+
Retailer 8
-
$2,038 AUD
View
B+
Retailer 9
-
$2,068 AUD
View
B+
Retailer 10
-
$2,091 AUD
View
B+
Retailer 11
-
$2,160 AUD
View
B+
Retailer 12
-
$2,235 AUD
View
B+
Retailer 13
-
$2,346 AUD
View
Retailer 14
-
$2,447 AUD
View
Price last confirmed 33 days ago
B+
Retailer 15
-
$2,452 AUD
View
B+
Retailer 16
-
$2,768 AUD
View
B
Retailer 17
-
$3,419 AUD
View
Most Expensive
B
NZ Jewellers
c840f667-effc-43a0-97e9-61d28b403e2e · Nov 5
$4,566 AUD
$3,137 USD
View
17 more retailers have this diamond
Prices start from $1,400 AUDSave up to $3,165 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
0.80ct Round
$1,400 AUD