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Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5506585990

Certificate GIA 5506585990

Diamond specifications and retailer prices

From $1,654 AUD
$1,162 USD
As of October 31, 2026
Save $3,170 AUD (66%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,825 AUD at NZ Jewellers · As of October 30, 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 5506585990. Listed at 20 retailers as of October 30, 2026, with prices from $1,654 to $4,825, a $3,170 spread on the same certified stone. NZ Jewellers lists it at $4,825. 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
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5506585990
Dimensions5.93 × 5.88 × 3.67 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.93 mm5.88 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5506585990
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $2,925 AUD|Low: $1,378 AUD|High: $3,667 AUD|Avg: $2,409 AUD|+2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 8$1,654 AUD
Retailer 11$1,720 AUD
Retailer 10$1,861 AUD
Retailer 7$1,957 AUD
Retailer 4$2,192 AUD
Retailer 3$2,242 AUD
Retailer 5$2,574 AUD
Retailer 9$2,581 AUD
Retailer 1$2,925 AUD
Retailer 2$3,229 AUD
Retailer 6$3,641 AUD

43 data points across 11 retailers

20 retailers$1,654 AUD to $4,825 AUD

B+
Cheapest Retailer
-
$1,654 AUD
$1,162 USD
Final sale: no returns
B+
Retailer 2
-
$1,696 AUD
$1,191 USD
View
B+
Retailer 3
-
$1,715 AUD
$1,205 USD
View
B+
Retailer 4
-
$1,720 AUD
$1,208 USD
View
B+
Retailer 5
-
$1,758 AUD
$1,235 USD
View
B+
Retailer 6
-
$1,792 AUD
$1,259 USD
View
B+
Retailer 7
-
$1,861 AUD
$1,307 USD
View
B
Retailer 8
-
$1,957 AUD
$1,375 USD
View
B
Retailer 9
-
$2,067 AUD
$1,452 USD
View
B+
Retailer 10
-
$2,135 AUD
$1,500 USD
View
B+
Retailer 11
-
$2,135 AUD
$1,500 USD
View
B+
Retailer 12
-
$2,192 AUD
£1,212 GBP
View
B
Retailer 13
-
$2,207 AUD
$1,550 USD
View
B
Retailer 14
-
$2,242 AUD
$1,575 USD
View
B
Retailer 15
-
$2,574 AUD
€1,722 EUR
View
Retailer 16
-
$2,581 AUD
View
Price last confirmed 26 days ago
B
Retailer 17
-
$2,925 AUD
ZAR 33,196 ZAR
View
B
Retailer 18
-
$3,229 AUD
CA$3,150 CAD
View
B
Retailer 19
-
$3,641 AUD
£2,014 GBP
View
Most Expensive
B
NZ Jewellers
abd4e079-4c0d-4db3-8fbc-485f90a6eab7 · Oct 30
$4,825 AUD
$3,389 USD
View
19 more retailers have this diamond
Prices start from $1,654 AUDSave up to $3,170 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 Round
$1,654 AUD