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Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2506352705

Certificate GIA 2506352705

Diamond specifications and retailer prices

From $1,331 AUD
$935 USD
As of October 31, 2026
Save $2,611 AUD (66%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,006 AUD at NZ Jewellers · As of September 26, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2506352705. Listed at 21 retailers as of October 27, 2026, with a 196% 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2506352705
Dimensions5.92 × 5.88 × 3.68 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.92 mm5.88 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2506352705
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

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: Oct 31
Current: $3,942 AUD|Low: $1,331 AUD|High: $4,006 AUD|Avg: $1,975 AUD|-1.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 16$1,331 AUD
Retailer 7$1,463 AUD
Retailer 6$1,492 AUD
Retailer 3$1,547 AUD
Retailer 11$1,616 AUD
Retailer 13$1,616 AUD
Retailer 5$1,678 AUD
Retailer 15$1,801 AUD
Retailer 14$1,807 AUD
Retailer 9$1,833 AUD
Retailer 12$1,907 AUD
Retailer 4$2,035 AUD
Retailer 8$2,147 AUD
Retailer 10$2,391 AUD
Retailer 2$2,960 AUD
NZ Jewellers$3,942 AUD

44 data points across 16 retailers

21 retailers$1,331 AUD to $3,942 AUD

A
Cheapest Retailer
-
$1,331 AUD
$935 USD
A
Retailer 2
-
$1,463 AUD
SGD 1,389 SGD
View
A
Retailer 3
-
$1,492 AUD
$1,048 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,547 AUD
$1,087 USD
View
B+
Retailer 5
-
$1,616 AUD
$1,135 USD
View
Retailer 6
-
$1,616 AUD
$1,135 USD
View
Price last confirmed 7 days ago
Retailer 7
-
$1,643 AUD
$1,154 USD
View
Price last confirmed 54 days ago
Retailer 8
-
$1,643 AUD
$1,154 USD
View
Price last confirmed 33 days ago
B+
Retailer 9
-
$1,678 AUD
$1,179 USD
View
B+
Retailer 10
-
$1,801 AUD
$1,265 USD
View
B+
Retailer 11
-
$1,807 AUD
$1,270 USD
View
B+
Retailer 12
-
$1,833 AUD
£1,014 GBP
View
Retailer 13
-
$1,895 AUD
$1,331 USD
View
Price last confirmed 55 days ago
Retailer 14
-
$1,895 AUD
$1,331 USD
View
Price last confirmed 32 days ago
B+
Retailer 15
-
$1,907 AUD
£1,055 GBP
View
B
Retailer 16
-
$2,035 AUD
$1,429 USD
View
Retailer 17
-
$2,147 AUD
View
Price last confirmed 27 days ago
B
Retailer 18
-
$2,391 AUD
ZAR 27,129 ZAR
View
B
Retailer 19
-
$2,960 AUD
£1,637 GBP
View
B
Retailer 20
-
$3,942 AUD
$2,769 USD
View
Most Expensive
NZ Jewellers
682f0d6b-1b18-40a0-9382-996856cd1e15 · Sep 26
$4,006 AUD
$2,814 USD
View
Price last confirmed 35 days ago
20 more retailers have this diamond
Prices start from $1,331 AUDSave up to $2,611 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
$1,331 AUD