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Round|Natural|GIA

1.00ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 1559494856

Certificate GIA 1559494856

Diamond specifications and retailer prices

From $2,368 NZD
As of November 6, 2026
Save $5,148 NZD (68%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,516 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 SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 1559494856. Listed at 20 retailers as of November 5, 2026, with prices from $2,368 to $7,516, a $5,148 spread on the same certified stone. NZ Jewellers lists it at $7,516. 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
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 1559494856
Dimensions6.18 × 6.24 × 3.98 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Crystal, Cavity, Needle, Indented Natural, Natural
Top View
6.18 mm6.24 mm1.00 ctJ / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1559494856
Side View
Table 59.0%Crown 38°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 64.1%

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 6
Current: $2,382 NZD|Low: $2,368 NZD|High: $5,465 NZD|Avg: $3,429 NZD|-3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$2,368 NZD
Retailer 1$2,382 NZD
Retailer 2$2,843 NZD
Retailer 7$2,885 NZD
Retailer 11$3,070 NZD
Retailer 4$3,305 NZD
Retailer 5$3,399 NZD
Retailer 3$3,431 NZD
Retailer 6$3,579 NZD
Retailer 8$4,047 NZD
Retailer 9$5,383 NZD

32 data points across 11 retailers

20 retailers$2,368 NZD to $7,516 NZD

A
Cheapest Retailer
-
$2,368 NZD
A
Retailer 2
-
$2,382 NZD
View
B+
Retailer 3
-
$2,807 NZD
View
B+
Retailer 4
-
$2,843 NZD
View
Final sale: no returns
B+
Retailer 5
-
$2,885 NZD
View
B+
Retailer 6
-
$3,070 NZD
View
B+
Retailer 7
-
$3,081 NZD
View
Retailer 8
-
$3,081 NZD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$3,223 NZD
View
B+
Retailer 10
-
$3,305 NZD
View
B+
Retailer 11
-
$3,325 NZD
View
B+
Retailer 12
-
$3,357 NZD
View
B+
Retailer 13
-
$3,399 NZD
View
B+
Retailer 14
-
$3,431 NZD
View
B+
Retailer 15
-
$3,556 NZD
View
B+
Retailer 16
-
$3,579 NZD
View
B
Retailer 17
-
$4,047 NZD
View
B
Retailer 18
-
$4,590 NZD
View
B
Retailer 19
-
$5,383 NZD
View
Most Expensive
C
NZ Jewellers
487f54e0-6499-4d20-a69f-4a5bfdf0dac6 · Nov 5
$7,516 NZD
$4,225 USD
View
19 more retailers have this diamond
Prices start from $2,368 NZDSave up to $5,148 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
$2,368 NZD