CaratHunter
Plans
Round|Natural|GIA

1.01ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2487928817

Certificate GIA 2487928817

Diamond specifications and retailer prices

From $2,453 NZD
HK$10,800 HKD
As of November 1, 2026
Save $3,368 NZD (58%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,557 NZD 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 November 1, 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: Nov 1
Current: $5,820 NZD|Low: $2,453 NZD|High: $6,222 NZD|Avg: $3,696 NZD|-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$2,453 NZD
Retailer 11$2,913 NZD
Retailer 9$3,027 NZD
Retailer 10$3,066 NZD
Retailer 7$3,217 NZD
Retailer 4$3,267 NZD
Retailer 2$3,427 NZD
Retailer 8$3,566 NZD
Retailer 5$3,622 NZD
Retailer 3$4,175 NZD
Retailer 6$4,536 NZD
Retailer 1$5,820 NZD

35 data points across 12 retailers

17 retailers$2,453 NZD to $5,820 NZD

A
Cheapest Retailer
-
$2,453 NZD
HK$10,800 HKD
A
Retailer 2
-
$2,913 NZD
$1,642 USD
View
B+
Retailer 3
-
$3,027 NZD
$1,706 USD
View
A
Retailer 4
-
$3,066 NZD
$1,728 USD
View
Final sale: no returns
B+
Retailer 5
-
$3,217 NZD
$1,813 USD
View
B+
Retailer 6
-
$3,427 NZD
SGD 2,610 SGD
View
Retailer 7
-
$3,508 NZD
$1,977 USD
View
Price last confirmed 25 days ago
Retailer 8
-
$3,510 NZD
$1,978 USD
View
Price last confirmed 25 days ago
B+
Retailer 9
-
$3,566 NZD
$2,010 USD
View
B+
Retailer 10
-
$3,622 NZD
£1,607 GBP
View
Retailer 11
-
$3,671 NZD
$2,069 USD
View
Price last confirmed 33 days ago
Retailer 12
-
$4,049 NZD
$2,282 USD
View
Price last confirmed 56 days ago
Retailer 13
-
$4,049 NZD
$2,282 USD
View
Price last confirmed 34 days ago
B+
Retailer 14
-
$4,536 NZD
€2,435 EUR
View
B
Retailer 15
-
$5,820 NZD
£2,583 GBP
View
Retailer 16
-
$8,557 NZD
$4,823 USD
View
Price last confirmed 52 days ago
Most Expensive
NZ Jewellers
2105d1f5-fcce-43ff-8434-dd5e975e32f8 · Sep 28
$8,557 NZD
$4,823 USD
View
Price last confirmed 34 days ago
16 more retailers have this diamond
Prices start from $2,453 NZDSave up to $3,368 NZD

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
$2,453 NZD