CaratHunter
Plans
Round|Natural|GIA

1.00ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6441577858

Certificate GIA 6441577858

Diamond specifications and retailer prices

From $1,696 AUD
As of October 31, 2026
Save $4,056 AUD (71%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,751 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6441577858. Listed at 17 retailers as of October 31, 2026, with prices from $1,696 to $5,751, a $4,056 spread on the same certified stone. NZ Jewellers lists it at $5,751. 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

1.00
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6441577858
Dimensions6.40 × 6.33 × 4.00 mm
L/W Ratio1.01
Top View
6.40 mm6.33 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6441577858
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.9%

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: $2,256 AUD|Low: $1,691 AUD|High: $4,181 AUD|Avg: $2,555 AUD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$1,696 AUD
Retailer 6$1,718 AUD
Retailer 7$2,176 AUD
Retailer 1$2,256 AUD
Retailer 2$2,586 AUD
Retailer 4$2,918 AUD
Retailer 3$4,130 AUD

35 data points across 7 retailers

17 retailers$1,696 AUD to $5,751 AUD

A
Cheapest Retailer
-
$1,696 AUD
A
Retailer 2
-
$1,718 AUD
View
Retailer 3
-
$2,123 AUD
View
Price last confirmed 82 days ago
B+
Retailer 4
-
$2,176 AUD
View
Final sale: no returns
B+
Retailer 5
-
$2,203 AUD
View
A
Retailer 6
-
$2,256 AUD
View
B+
Retailer 7
-
$2,358 AUD
View
Retailer 8
-
$2,358 AUD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$2,381 AUD
View
B+
Retailer 10
-
$2,467 AUD
View
B+
Retailer 11
-
$2,580 AUD
View
B+
Retailer 12
-
$2,586 AUD
View
B+
Retailer 13
-
$2,721 AUD
View
B+
Retailer 14
-
$2,918 AUD
View
B
Retailer 15
-
$4,130 AUD
View
B
Retailer 16
-
$4,438 AUD
View
Most Expensive
C
NZ Jewellers
cdd2c3d5-0205-49b5-b7d2-5964aef1b29c · Nov 5
$5,751 AUD
$4,026 USD
View
16 more retailers have this diamond
Prices start from $1,696 AUDSave up to $4,056 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
1.00ct Round
$1,696 AUD