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Round|Natural|GIA

1.01ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6521315816

Certificate GIA 6521315816

Diamond specifications and retailer prices

From $1,791 AUD
As of November 5, 2026
Save $2,640 AUD (60%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,754 AUD at NZ Jewellers · As of October 23, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6521315816. Listed at 16 retailers as of November 4, 2026, with a 147% 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6521315816
Dimensions6.39 × 6.36 × 3.98 mm
L/W Ratio1.00
Top View
6.39 mm6.36 mm1.01 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6521315816
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.6%

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 5
Current: $5,754 AUD|Low: $1,718 AUD|High: $5,754 AUD|Avg: $2,829 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
November 6, 2026
Retailer 14$1,791 AUD
Retailer 8$1,943 AUD
Retailer 10$2,330 AUD
Retailer 5$2,338 AUD
Retailer 4$2,341 AUD
Retailer 13$2,408 AUD
Retailer 11$2,491 AUD
Retailer 15$2,518 AUD
Retailer 2$2,571 AUD
Retailer 6$2,621 AUD
Retailer 12$2,627 AUD
Retailer 16$3,096 AUD
Retailer 7$3,157 AUD
Retailer 9$3,668 AUD
Retailer 3$4,431 AUD
NZ Jewellers$5,754 AUD

31 data points across 16 retailers

16 retailers$1,791 AUD to $4,431 AUD

A
Cheapest Retailer
-
$1,791 AUD
Retailer 2
-
$1,943 AUD
View
Price last confirmed 30 days ago
A
Retailer 3
-
$2,330 AUD
View
A
Retailer 4
-
$2,338 AUD
View
A
Retailer 5
-
$2,341 AUD
View
Final sale: no returns
B+
Retailer 6
-
$2,408 AUD
View
B+
Retailer 7
-
$2,491 AUD
View
A
Retailer 8
-
$2,518 AUD
View
B+
Retailer 9
-
$2,571 AUD
View
B+
Retailer 10
-
$2,621 AUD
View
B+
Retailer 11
-
$2,627 AUD
View
B+
Retailer 12
-
$2,634 AUD
View
B+
Retailer 13
-
$3,096 AUD
View
B
Retailer 14
-
$3,668 AUD
View
B
Retailer 15
-
$4,431 AUD
View
Most Expensive
NZ Jewellers
4a6abdf3-a49c-481c-aab1-61bd85586a3c · Oct 23
$5,754 AUD
$4,028 USD
View
Price last confirmed 13 days ago
15 more retailers have this diamond
Prices start from $1,791 AUDSave up to $2,640 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
$1,791 AUD