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Round|Natural|GIA

1.00ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1563443794

Certificate GIA 1563443794

Diamond specifications and retailer prices

From $1,731 AUD
As of November 6, 2026
Save $4,160 AUD (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,539 AUD at MOH London · As of November 2, 2026
View at MOH London

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 1563443794. Listed at 13 retailers as of November 2, 2026, with a 240% 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

1.00
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1563443794
Dimensions6.35 × 6.40 × 3.91 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.35 mm6.40 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1563443794
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 61.3%

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 6
Current: $8,539 AUD|Low: $1,731 AUD|High: $8,539 AUD|Avg: $3,400 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 2$1,731 AUD
Retailer 4$2,050 AUD
Retailer 5$2,564 AUD
Retailer 7$2,920 AUD
Retailer 6$2,937 AUD
Retailer 3$4,360 AUD
Retailer 13$4,713 AUD
Retailer 11$4,724 AUD
Retailer 10$4,913 AUD
Retailer 12$5,105 AUD
Retailer 8$5,303 AUD
Retailer 9$5,891 AUD
MOH London$8,539 AUD

22 data points across 13 retailers

13 retailers$1,731 AUD to $5,891 AUD

A
Cheapest Retailer
-
$1,731 AUD
A
Retailer 2
-
$2,050 AUD
View
B+
Retailer 3
-
$2,564 AUD
View
B+
Retailer 4
-
$2,920 AUD
View
B+
Retailer 5
-
$2,937 AUD
View
B
Retailer 6
-
$4,360 AUD
View
B
Retailer 7
-
$4,713 AUD
View
Final sale: no returns
B
Retailer 8
-
$4,724 AUD
View
B
Retailer 9
-
$4,913 AUD
View
B
Retailer 10
-
$5,105 AUD
View
B
Retailer 11
-
$5,303 AUD
View
B
Retailer 12
-
$5,891 AUD
View
Most Expensive
MOH London
22960E667 · Nov 2
$8,539 AUD
£4,707 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $1,731 AUDSave up to $4,160 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
$1,731 AUD