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Round|Natural|GIA

1.03ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6461065516

Certificate GIA 6461065516

Diamond specifications and retailer prices

From $3,078 AUD
As of November 1, 2026
Save $4,600 AUD (60%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,678 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 top-tier cut grade and certified by GIA 6461065516. Listed at 12 retailers as of November 1, 2026, with prices from $3,078 to $7,678, a $4,600 spread on the same certified stone. NZ Jewellers lists it at $7,678. 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

1.03
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6461065516
Dimensions6.45 × 6.40 × 4.03 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.45 mm6.40 mm1.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6461065516
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $7,678 AUD|Low: $3,078 AUD|High: $7,678 AUD|Avg: $4,578 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6$3,078 AUD
Retailer 7$3,300 AUD
Retailer 9$3,327 AUD
Retailer 8$3,481 AUD
Retailer 2$3,863 AUD
Retailer 4$4,483 AUD
Retailer 3$4,550 AUD
Retailer 5$6,415 AUD
NZ Jewellers$7,678 AUD

43 data points across 9 retailers

12 retailers$3,078 AUD to $7,678 AUD

B+
Cheapest Retailer
-
$3,078 AUD
B+
Retailer 2
-
$3,294 AUD
View
B+
Retailer 3
-
$3,300 AUD
View
B+
Retailer 4
-
$3,327 AUD
View
Retailer 5
-
$3,327 AUD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$3,481 AUD
View
B
Retailer 7
-
$3,840 AUD
View
B
Retailer 8
-
$3,863 AUD
View
B
Retailer 9
-
$4,483 AUD
View
B
Retailer 10
-
$4,550 AUD
View
B
Retailer 11
-
$6,415 AUD
View
Most Expensive
C
NZ Jewellers
55a41621-d0ae-48a8-baa9-27d75a5304a0 · Nov 5
$7,678 AUD
$5,375 USD
View
11 more retailers have this diamond
Prices start from $3,078 AUDSave up to $4,600 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.

B+
1.03ct Round
$3,078 AUD