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Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6203521683

Certificate GIA 6203521683

Diamond specifications and retailer prices

From $1,057 AUD
HK$5,800 HKD
As of October 31, 2026
Save $1,539 AUD (59%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,501 AUD at NZ Jewellers · As of October 20, 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 6203521683. Listed at 17 retailers as of October 29, 2026, with a 146% 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 angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6203521683
Dimensions5.87 × 5.92 × 3.69 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Top View
5.87 mm5.92 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6203521683
Side View
Table 57.0%Crown 36°Girdle: MediumPavilion 40.6°Culet: NoneDepth 62.7%

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: $4,501 AUD|Low: $1,039 AUD|High: $4,501 AUD|Avg: $1,796 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 10$1,057 AUD
Retailer 9$1,058 AUD
Retailer 5$1,156 AUD
Retailer 14$1,300 AUD
Retailer 6$1,435 AUD
Retailer 4$1,459 AUD
Retailer 3$1,528 AUD
Retailer 16$1,623 AUD
Retailer 2$1,643 AUD
Retailer 7$1,657 AUD
Retailer 15$1,758 AUD
Retailer 12$1,831 AUD
Retailer 8$1,877 AUD
Retailer 11$2,085 AUD
Retailer 13$2,596 AUD
NZ Jewellers$4,501 AUD

32 data points across 16 retailers

17 retailers$1,057 AUD to $2,596 AUD

A
Cheapest Retailer
-
$1,057 AUD
HK$5,800 HKD
A
Retailer 2
-
$1,058 AUD
₹70,762 INR
View
A
Retailer 3
-
$1,156 AUD
$812 USD
View
A
Retailer 4
-
$1,300 AUD
$913 USD
View
Final sale: no returns
Retailer 5
-
$1,435 AUD
$1,008 USD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$1,459 AUD
SGD 1,385 SGD
View
Retailer 7
-
$1,491 AUD
$1,047 USD
View
Price last confirmed 16 days ago
B+
Retailer 8
-
$1,528 AUD
$1,073 USD
View
B+
Retailer 9
-
$1,623 AUD
$1,140 USD
View
B+
Retailer 10
-
$1,643 AUD
£909 GBP
View
Retailer 11
-
$1,657 AUD
$1,164 USD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$1,758 AUD
$1,235 USD
View
B+
Retailer 13
-
$1,831 AUD
€1,225 EUR
View
Retailer 14
-
$1,877 AUD
View
Price last confirmed 28 days ago
B+
Retailer 15
-
$2,085 AUD
ZAR 23,663 ZAR
View
B
Retailer 16
-
$2,596 AUD
£1,436 GBP
View
Most Expensive
NZ Jewellers
ce6df165-cb18-4743-893b-a0eae58deb8d · Oct 20
$4,501 AUD
$3,162 USD
View
Price last confirmed 11 days ago
16 more retailers have this diamond
Prices start from $1,057 AUDSave up to $1,539 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
$1,057 AUD