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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 $3,143 AUD
As of November 6, 2026
Save $5,258 AUD (63%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $8,401 AUD 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 $3,143 to $8,401, a $5,258 spread on the same certified stone. NZ Jewellers lists it at $8,401. 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: $8,401 AUD|Low: $3,126 AUD|High: $8,401 AUD|Avg: $4,541 AUD
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$3,143 AUD
Retailer 5$3,144 AUD
Retailer 11$3,551 AUD
Retailer 15$3,600 AUD
Retailer 22$3,600 AUD
Retailer 12$3,708 AUD
Retailer 13$3,846 AUD
Retailer 3$3,934 AUD
Retailer 6$3,943 AUD
Retailer 4$3,984 AUD
Retailer 8$4,018 AUD
Retailer 10$4,018 AUD
Retailer 9$4,173 AUD
Retailer 7$4,220 AUD
Retailer 19$4,228 AUD
Retailer 18$4,381 AUD
Retailer 23$4,603 AUD
Retailer 14$4,637 AUD
Retailer 20$4,698 AUD
Retailer 21$4,904 AUD
Retailer 16$5,928 AUD
Retailer 17$6,094 AUD
Retailer 24$7,020 AUD
NZ Jewellers$8,401 AUD

19 data points across 24 retailers

25 retailers$3,143 AUD to $8,401 AUD

A
Cheapest Retailer
-
$3,143 AUD
A
Retailer 2
-
$3,144 AUD
View
A
Retailer 3
-
$3,551 AUD
View
B+
Retailer 4
-
$3,600 AUD
View
A
Retailer 5
-
$3,600 AUD
View
A
Retailer 6
-
$3,708 AUD
View
Final sale: no returns
A
Retailer 7
-
$3,846 AUD
View
B+
Retailer 8
-
$3,934 AUD
View
B+
Retailer 9
-
$3,943 AUD
View
B+
Retailer 10
-
$3,984 AUD
View
Retailer 11
-
$4,018 AUD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$4,018 AUD
View
B+
Retailer 13
-
$4,173 AUD
View
B+
Retailer 14
-
$4,220 AUD
View
B+
Retailer 15
-
$4,228 AUD
View
B+
Retailer 16
-
$4,381 AUD
View
B+
Retailer 17
-
$4,603 AUD
View
B+
Retailer 18
-
$4,637 AUD
View
B+
Retailer 19
-
$4,698 AUD
View
Retailer 20
-
$4,870 AUD
View
Price last confirmed 33 days ago
B+
Retailer 21
-
$4,904 AUD
View
B
Retailer 22
-
$5,928 AUD
View
B
Retailer 23
-
$6,094 AUD
View
B
Retailer 24
-
$7,020 AUD
View
Most Expensive
C
NZ Jewellers
ffbaecdc-c3de-48b0-9890-1cd15db27370 · Nov 5
$8,401 AUD
$5,881 USD
View
24 more retailers have this diamond
Prices start from $3,143 AUDSave up to $5,258 AUD

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
$3,143 AUD