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Round|Natural|GIA

0.80ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6405725798

Certificate GIA 6405725798

Diamond specifications and retailer prices

From $1,370 AUD
₹91,638 INR
As of November 1, 2026
Save $3,120 AUD (69%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,490 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 6405725798. Listed at 21 retailers as of October 30, 2026, with prices from $1,370 to $4,490, a $3,120 spread on the same certified stone. NZ Jewellers lists it at $4,490. 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 angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6405725798
Dimensions5.94 × 5.91 × 3.71 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.94 mm5.91 mm0.80 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6405725798
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 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 1
Current: $1,370 AUD|Low: $1,367 AUD|High: $4,980 AUD|Avg: $2,213 AUD|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 1$1,370 AUD
Retailer 2$1,698 AUD
Retailer 11$1,705 AUD
Retailer 12$1,723 AUD
Retailer 4$1,841 AUD
Retailer 9$2,007 AUD
Retailer 6$2,091 AUD
Retailer 10$2,188 AUD
Retailer 8$2,390 AUD
Retailer 3$2,407 AUD
Retailer 7$2,723 AUD
Retailer 5$3,372 AUD

33 data points across 12 retailers

21 retailers$1,370 AUD to $4,490 AUD

A
Cheapest Retailer
-
$1,370 AUD
₹91,638 INR
Retailer 2
-
$1,421 AUD
HK$7,800 HKD
View
Price last confirmed 58 days ago
B+
Retailer 3
-
$1,643 AUD
$1,154 USD
View
B+
Retailer 4
-
$1,698 AUD
$1,193 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,705 AUD
$1,198 USD
View
Retailer 6
-
$1,723 AUD
$1,210 USD
View
Price last confirmed 7 days ago
Retailer 7
-
$1,841 AUD
$1,293 USD
View
Price last confirmed 39 days ago
Retailer 8
-
$1,841 AUD
$1,293 USD
View
Price last confirmed 31 days ago
B+
Retailer 9
-
$1,841 AUD
$1,293 USD
View
B+
Retailer 10
-
$2,007 AUD
$1,410 USD
View
B
Retailer 11
-
$2,033 AUD
$1,428 USD
View
B
Retailer 12
-
$2,091 AUD
£1,156 GBP
View
B+
Retailer 13
-
$2,124 AUD
$1,492 USD
View
Retailer 14
-
$2,124 AUD
$1,492 USD
View
Price last confirmed 40 days ago
B
Retailer 15
-
$2,188 AUD
£1,210 GBP
View
B
Retailer 16
-
$2,390 AUD
€1,599 EUR
View
Retailer 17
-
$2,407 AUD
View
Price last confirmed 28 days ago
B
Retailer 18
-
$2,723 AUD
ZAR 30,900 ZAR
View
B
Retailer 19
-
$3,372 AUD
£1,865 GBP
View
Retailer 20
-
$4,490 AUD
$3,154 USD
View
Price last confirmed 41 days ago
Most Expensive
B
NZ Jewellers
1e096078-c2b6-44c9-9d1f-7ea2608ddbbb · Oct 30
$4,490 AUD
$3,154 USD
View
20 more retailers have this diamond
Prices start from $1,370 AUDSave up to $3,120 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
$1,370 AUD