CaratHunter
Plans
Round|Natural|GIA

1.00ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 7421614155

Certificate GIA 7421614155

Diamond specifications and retailer prices

From $2,800 NZD
As of October 31, 2026
Save $5,289 NZD (65%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,089 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 7421614155. Listed at 20 retailers as of October 31, 2026, with prices from $2,800 to $8,089, a $5,289 spread on the same certified stone. NZ Jewellers lists it at $8,089. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7421614155
Dimensions6.30 × 6.22 × 4.01 mm
L/W Ratio1.01
Top View
6.30 mm6.22 mm1.00 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7421614155
Side View
Table 58.0%Crown 37°Girdle: MED-THKPavilion 40.8°Culet: NoneDepth 64.0%

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 31
Current: $3,922 NZD|Low: $2,792 NZD|High: $6,860 NZD|Avg: $4,296 NZD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$2,800 NZD
Retailer 9$2,816 NZD
Retailer 7$3,510 NZD
Retailer 10$3,570 NZD
Retailer 1$3,922 NZD
Retailer 4$4,178 NZD
Retailer 3$4,723 NZD
Retailer 6$4,744 NZD
Retailer 2$4,757 NZD
Retailer 5$6,777 NZD

38 data points across 10 retailers

20 retailers$2,800 NZD to $8,089 NZD

A
Cheapest Retailer
-
$2,800 NZD
A
Retailer 2
-
$2,816 NZD
View
B+
Retailer 3
-
$3,422 NZD
View
Retailer 4
-
$3,451 NZD
View
Price last confirmed 82 days ago
B+
Retailer 5
-
$3,510 NZD
View
B+
Retailer 6
-
$3,570 NZD
View
Final sale: no returns
Retailer 7
-
$3,869 NZD
View
Price last confirmed 8 days ago
B
Retailer 8
-
$3,869 NZD
View
B
Retailer 9
-
$3,905 NZD
View
B
Retailer 10
-
$3,922 NZD
View
B
Retailer 11
-
$4,048 NZD
View
B
Retailer 12
-
$4,118 NZD
View
B
Retailer 13
-
$4,178 NZD
View
B
Retailer 14
-
$4,465 NZD
View
B
Retailer 15
-
$4,723 NZD
View
B
Retailer 16
-
$4,744 NZD
View
Retailer 17
-
$4,757 NZD
View
Price last confirmed 31 days ago
B
Retailer 18
-
$6,283 NZD
View
B
Retailer 19
-
$6,777 NZD
View
Most Expensive
C
NZ Jewellers
810c9545-2c13-417f-bec6-102fb59b971f · Nov 5
$8,089 NZD
$4,484 USD
View
19 more retailers have this diamond
Prices start from $2,800 NZDSave up to $5,289 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
1.00ct Round
$2,800 NZD