Round|Natural|GIA

1.01ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2487928817

Certificate GIA 2487928817

Diamond specifications and retailer prices

From $1,382 USD
HK$10,800 HKD
As of October 30, 2026
Save $1,902 USD (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,823 USD 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: $2,557 USD|Low: $1,382 USD|High: $3,506 USD|Avg: $2,087 USD|-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$1,382 USD
Retailer 11$1,642 USD
Retailer 9$1,706 USD
Retailer 10$1,728 USD
Retailer 7$1,813 USD
Retailer 4$1,841 USD
Retailer 2$1,931 USD
Retailer 8$2,010 USD
Retailer 5$2,041 USD
Retailer 3$2,353 USD
Retailer 1$2,557 USD
Retailer 6$3,284 USD

33 data points across 12 retailers

17 retailers$1,382 USD to $3,284 USD

A
Cheapest Retailer
-
$1,382 USD
HK$10,800 HKD
A
Retailer 2
-
$1,642 USD
View
B+
Retailer 3
-
$1,706 USD
View
A
Retailer 4
-
$1,728 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,813 USD
View
B+
Retailer 6
-
$1,931 USD
SGD 2,610 SGD
View
Retailer 7
-
$1,977 USD
View
Price last confirmed 23 days ago
Retailer 8
-
$1,978 USD
View
Price last confirmed 23 days ago
B+
Retailer 9
-
$2,010 USD
View
B+
Retailer 10
-
$2,041 USD
£1,607 GBP
View
Retailer 11
-
$2,069 USD
View
Price last confirmed 31 days ago
Retailer 12
-
$2,282 USD
View
Price last confirmed 53 days ago
Retailer 13
-
$2,282 USD
View
Price last confirmed 32 days ago
B+
Retailer 14
-
$2,557 USD
€2,435 EUR
View
B
Retailer 15
-
$3,284 USD
£2,586 GBP
View
Retailer 16
-
$4,823 USD
View
Price last confirmed 50 days ago
Most Expensive
NZ Jewellers
2105d1f5-fcce-43ff-8434-dd5e975e32f8 · Sep 28
$4,823 USD
View
Price last confirmed 32 days ago
16 more retailers have this diamond
Prices start from $1,382 USDSave up to $1,902 USD

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
$1,382 USD