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Round|Natural|GIA

1.01ct D SI1 Round Natural Diamond

GD • D/SI1 • GIA 2556450146

Certificate GIA 2556450146

Diamond specifications and retailer prices

From $3,914 NZD
As of November 6, 2026
Save $6,548 NZD (63%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $10,462 NZD at NZ Jewellers · As of November 5, 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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by GIA 2556450146. Listed at 25 retailers as of November 5, 2026, with prices from $3,914 to $10,462, a $6,548 spread on the same certified stone. NZ Jewellers lists it at $10,462. 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

1.01
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556450146
Dimensions6.03 × 6.13 × 4.07 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.03 mm6.13 mm1.01 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556450146
Side View
Table 62.0%Crown 40°Girdle: THK-VTKPavilion 41°Culet: NoneDepth 66.8%

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: $10,462 NZD|Low: $3,892 NZD|High: $10,462 NZD|Avg: $5,655 NZD
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
November 6, 2026
Retailer 2$3,914 NZD
Retailer 5$3,915 NZD
Retailer 11$4,422 NZD
Retailer 15$4,483 NZD
Retailer 22$4,483 NZD
Retailer 12$4,618 NZD
Retailer 13$4,789 NZD
Retailer 3$4,899 NZD
Retailer 6$4,910 NZD
Retailer 4$4,961 NZD
Retailer 8$5,004 NZD
Retailer 10$5,004 NZD
Retailer 9$5,196 NZD
Retailer 7$5,255 NZD
Retailer 19$5,266 NZD
Retailer 18$5,456 NZD
Retailer 23$5,732 NZD
Retailer 14$5,774 NZD
Retailer 20$5,851 NZD
Retailer 21$6,107 NZD
Retailer 16$7,382 NZD
Retailer 17$7,589 NZD
Retailer 24$8,742 NZD
NZ Jewellers$10,462 NZD

19 data points across 24 retailers

25 retailers$3,914 NZD to $10,462 NZD

A
Cheapest Retailer
-
$3,914 NZD
A
Retailer 2
-
$3,915 NZD
View
A
Retailer 3
-
$4,422 NZD
View
B+
Retailer 4
-
$4,483 NZD
View
A
Retailer 5
-
$4,483 NZD
View
A
Retailer 6
-
$4,618 NZD
View
Final sale: no returns
A
Retailer 7
-
$4,789 NZD
View
B+
Retailer 8
-
$4,899 NZD
View
B+
Retailer 9
-
$4,910 NZD
View
B+
Retailer 10
-
$4,961 NZD
View
Retailer 11
-
$5,004 NZD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$5,004 NZD
View
B+
Retailer 13
-
$5,196 NZD
View
B+
Retailer 14
-
$5,255 NZD
View
B+
Retailer 15
-
$5,266 NZD
View
B+
Retailer 16
-
$5,456 NZD
View
B+
Retailer 17
-
$5,732 NZD
View
B+
Retailer 18
-
$5,774 NZD
View
B+
Retailer 19
-
$5,851 NZD
View
Retailer 20
-
$6,064 NZD
View
Price last confirmed 33 days ago
B+
Retailer 21
-
$6,107 NZD
View
B
Retailer 22
-
$7,382 NZD
View
B
Retailer 23
-
$7,589 NZD
View
B
Retailer 24
-
$8,742 NZD
View
Most Expensive
C
NZ Jewellers
ffbaecdc-c3de-48b0-9890-1cd15db27370 · Nov 5
$10,462 NZD
$5,881 USD
View
24 more retailers have this diamond
Prices start from $3,914 NZDSave up to $6,548 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
$3,914 NZD