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Round|Natural|GIA

1.03ct K SI1 Round Natural Diamond

GD • K/SI1 • GIA 2566303416

Certificate GIA 2566303416

Diamond specifications and retailer prices

From $1,754 AUD
As of November 6, 2026
Save $3,938 AUD (69%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,693 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade and certified by GIA 2566303416. Listed at 19 retailers as of November 5, 2026, with prices from $1,754 to $5,693, a $3,938 spread on the same certified stone. NZ Jewellers lists it at $5,693. 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

1.03
Carat
K
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
Crown angle40°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 2566303416
Dimensions6.07 × 6.19 × 4.10 mm
L/W Ratio1.02
Top View
6.07 mm6.19 mm1.03 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 2566303416
Side View
Table 57.0%Crown 40°Girdle: THK-VTKPavilion 39.8°Culet: NoneDepth 66.9%

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: $5,693 AUD|Low: $1,737 AUD|High: $5,693 AUD|Avg: $2,697 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
November 6, 2026
Retailer 17$1,754 AUD
Retailer 13$1,770 AUD
Retailer 18$2,086 AUD
Retailer 5$2,163 AUD
Retailer 12$2,231 AUD
Retailer 3$2,334 AUD
Retailer 6$2,334 AUD
Retailer 7$2,380 AUD
Retailer 11$2,441 AUD
Retailer 10$2,443 AUD
Retailer 19$2,443 AUD
Retailer 4$2,528 AUD
Retailer 2$2,558 AUD
Retailer 9$2,693 AUD
Retailer 15$2,848 AUD
Retailer 14$2,987 AUD
Retailer 8$3,387 AUD
Retailer 16$4,077 AUD
NZ Jewellers$5,693 AUD

23 data points across 19 retailers

19 retailers$1,754 AUD to $5,693 AUD

B+
Cheapest Retailer
-
$1,754 AUD
A
Retailer 2
-
$1,770 AUD
View
B+
Retailer 3
-
$2,086 AUD
View
B+
Retailer 4
-
$2,163 AUD
View
B+
Retailer 5
-
$2,231 AUD
View
B+
Retailer 6
-
$2,334 AUD
View
Retailer 7
-
$2,334 AUD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$2,380 AUD
View
B+
Retailer 9
-
$2,441 AUD
View
B+
Retailer 10
-
$2,443 AUD
View
Retailer 11
-
$2,443 AUD
View
Price last confirmed 10 days ago
B+
Retailer 12
-
$2,528 AUD
View
B+
Retailer 13
-
$2,558 AUD
View
B+
Retailer 14
-
$2,693 AUD
View
B+
Retailer 15
-
$2,848 AUD
View
B+
Retailer 16
-
$2,987 AUD
View
B
Retailer 17
-
$3,387 AUD
View
B
Retailer 18
-
$4,077 AUD
View
Most Expensive
C
NZ Jewellers
0a0e3b24-45db-46df-9aeb-255499903e82 · Nov 5
$5,693 AUD
$3,985 USD
View
18 more retailers have this diamond
Prices start from $1,754 AUDSave up to $3,938 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
1.03ct Round
$1,754 AUD