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Round|Natural|GIA

1.01ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2487928817

Certificate GIA 2487928817

Diamond specifications and retailer prices

From $1,968 AUD
HK$10,800 HKD
As of October 30, 2026
Save $2,702 AUD (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,866 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct 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 2487928817. Listed at 17 retailers as of October 30, 2026, with a 137% 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

1.01
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2487928817
Dimensions6.40 × 6.37 × 3.99 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.40 mm6.37 mm1.01 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2487928817
Side View
Table 59.0%Crown 34°Girdle: ThickPavilion 41.4°Culet: NoneDepth 62.5%

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 30
Current: $4,670 AUD|Low: $1,968 AUD|High: $4,992 AUD|Avg: $2,965 AUD|-6.3%
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 12$1,968 AUD
Retailer 11$2,338 AUD
Retailer 9$2,429 AUD
Retailer 10$2,460 AUD
Retailer 7$2,581 AUD
Retailer 4$2,621 AUD
Retailer 2$2,750 AUD
Retailer 8$2,861 AUD
Retailer 5$2,906 AUD
Retailer 3$3,350 AUD
Retailer 6$3,640 AUD
Retailer 1$4,670 AUD

35 data points across 12 retailers

17 retailers$1,968 AUD to $4,670 AUD

A
Cheapest Retailer
-
$1,968 AUD
HK$10,800 HKD
A
Retailer 2
-
$2,338 AUD
$1,642 USD
View
B+
Retailer 3
-
$2,429 AUD
$1,706 USD
View
A
Retailer 4
-
$2,460 AUD
$1,728 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,581 AUD
$1,813 USD
View
B+
Retailer 6
-
$2,750 AUD
SGD 2,610 SGD
View
Retailer 7
-
$2,814 AUD
$1,977 USD
View
Price last confirmed 24 days ago
Retailer 8
-
$2,816 AUD
$1,978 USD
View
Price last confirmed 24 days ago
B+
Retailer 9
-
$2,861 AUD
$2,010 USD
View
B+
Retailer 10
-
$2,906 AUD
£1,607 GBP
View
Retailer 11
-
$2,945 AUD
$2,069 USD
View
Price last confirmed 32 days ago
Retailer 12
-
$3,249 AUD
$2,282 USD
View
Price last confirmed 55 days ago
Retailer 13
-
$3,249 AUD
$2,282 USD
View
Price last confirmed 33 days ago
B+
Retailer 14
-
$3,640 AUD
€2,435 EUR
View
B
Retailer 15
-
$4,670 AUD
£2,583 GBP
View
Retailer 16
-
$6,866 AUD
$4,823 USD
View
Price last confirmed 51 days ago
Most Expensive
NZ Jewellers
2105d1f5-fcce-43ff-8434-dd5e975e32f8 · Sep 28
$6,866 AUD
$4,823 USD
View
Price last confirmed 34 days ago
16 more retailers have this diamond
Prices start from $1,968 AUDSave up to $2,702 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
1.01ct Round
$1,968 AUD