Round|Natural|GIA

1.01ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2487928817

Certificate GIA 2487928817

Diamond specifications and retailer prices

From $1,931 CAD
HK$10,800 HKD
As of October 30, 2026
Save $2,657 CAD (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,737 CAD 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 26, 2026, with a 138% 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
Color
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: $3,572 CAD|Low: $1,931 CAD|High: $4,898 CAD|Avg: $2,915 CAD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 12$1,931 CAD
Retailer 11$2,294 CAD
Retailer 9$2,383 CAD
Retailer 10$2,414 CAD
Retailer 7$2,533 CAD
Retailer 4$2,572 CAD
Retailer 2$2,698 CAD
Retailer 8$2,807 CAD
Retailer 5$2,851 CAD
Retailer 3$3,287 CAD
Retailer 1$3,572 CAD
Retailer 6$4,588 CAD

33 data points across 12 retailers

17 retailers$1,931 CAD to $4,588 CAD

A
Cheapest Retailer
-
$1,931 CAD
HK$10,800 HKD
A
Retailer 2
-
$2,294 CAD
$1,642 USD
View
B+
Retailer 3
-
$2,383 CAD
$1,706 USD
View
A
Retailer 4
-
$2,414 CAD
$1,728 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,533 CAD
$1,813 USD
View
B+
Retailer 6
-
$2,698 CAD
SGD 2,610 SGD
View
Retailer 7
-
$2,762 CAD
$1,977 USD
View
Price last confirmed 22 days ago
Retailer 8
-
$2,763 CAD
$1,978 USD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
$2,807 CAD
$2,010 USD
View
B+
Retailer 10
-
$2,851 CAD
£1,607 GBP
View
Retailer 11
-
$2,890 CAD
$2,069 USD
View
Price last confirmed 31 days ago
Retailer 12
-
$3,188 CAD
$2,282 USD
View
Price last confirmed 53 days ago
Retailer 13
-
$3,188 CAD
$2,282 USD
View
Price last confirmed 31 days ago
B+
Retailer 14
-
$3,572 CAD
€2,435 EUR
View
B
Retailer 15
-
$4,588 CAD
£2,586 GBP
View
Retailer 16
-
$6,737 CAD
$4,823 USD
View
Price last confirmed 49 days ago
Most Expensive
NZ Jewellers
2105d1f5-fcce-43ff-8434-dd5e975e32f8 · Sep 28
$6,737 CAD
$4,823 USD
View
Price last confirmed 32 days ago
16 more retailers have this diamond
Prices start from $1,931 CADSave up to $2,657 CAD

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
$1,931 CAD