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Round|Natural|GIA

1.01ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6555990915

Certificate GIA 6555990915

Diamond specifications and retailer prices

From $2,640 NZD
As of November 6, 2026
Save $1,871 NZD (41%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $8,736 NZD at NZ Jewellers · As of October 20, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555990915. Listed at 18 retailers as of November 2, 2026, with a 71% 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle31.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6555990915
Dimensions6.46 × 6.50 × 3.92 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.46 mm6.50 mm1.01 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555990915
Side View
Table 59.0%Crown 31.5°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 60.6%

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: $8,736 NZD|Low: $2,640 NZD|High: $8,736 NZD|Avg: $4,041 NZD|+13.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 3$2,640 NZD
Retailer 2$2,663 NZD
Retailer 9$3,222 NZD
Retailer 15$3,305 NZD
Retailer 14$3,392 NZD
Retailer 13$3,540 NZD
Retailer 4$3,647 NZD
Retailer 8$3,688 NZD
Retailer 6$3,695 NZD
Retailer 7$4,132 NZD
Retailer 5$4,234 NZD
Retailer 12$4,321 NZD
Retailer 10$4,349 NZD
Retailer 16$4,360 NZD
Retailer 11$4,511 NZD
Retailer 17$6,281 NZD
NZ Jewellers$8,736 NZD

34 data points across 17 retailers

18 retailers$2,640 NZD to $4,511 NZD

A
Cheapest Retailer
-
$2,640 NZD
A
Retailer 2
-
$2,663 NZD
View
A
Retailer 3
-
$3,222 NZD
View
B+
Retailer 4
-
$3,305 NZD
View
Final sale: no returns
B+
Retailer 5
-
$3,392 NZD
View
B+
Retailer 6
-
$3,540 NZD
View
Retailer 7
-
$3,647 NZD
View
Price last confirmed 6 days ago
Retailer 8
-
$3,688 NZD
View
Price last confirmed 17 days ago
Retailer 9
-
$3,695 NZD
View
Price last confirmed 10 days ago
Retailer 10
-
$4,132 NZD
View
Price last confirmed 16 days ago
Retailer 11
-
$4,234 NZD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$4,321 NZD
View
B
Retailer 13
-
$4,349 NZD
View
Retailer 14
-
$4,360 NZD
View
Price last confirmed 11 days ago
B+
Retailer 15
-
$4,511 NZD
View
Retailer 16
-
$4,590 NZD
View
Price last confirmed 38 days ago
Retailer 17
-
$6,281 NZD
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
75b2570f-b837-4fda-83f1-86336c1fa6fc · Oct 20
$8,736 NZD
$4,911 USD
View
Price last confirmed 17 days ago
17 more retailers have this diamond
Prices start from $2,640 NZDSave up to $1,871 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
$2,640 NZD