Round|Natural|GIA

1.01ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6521315816

Certificate GIA 6521315816

Diamond specifications and retailer prices

From $1,254 USD
As of November 5, 2026
Save $1,848 USD (60%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,028 USD 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $4,028 USD|Low: $1,203 USD|High: $4,028 USD|Avg: $1,968 USD
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 12$1,254 USD
Retailer 8$1,360 USD
Retailer 2$1,631 USD
Retailer 3$1,637 USD
Retailer 16$1,639 USD
Retailer 11$1,686 USD
Retailer 9$1,744 USD
Retailer 13$1,763 USD
Retailer 5$1,835 USD
Retailer 10$1,839 USD
Retailer 6$1,860 USD
Retailer 14$2,167 USD
Retailer 7$2,210 USD
Retailer 4$2,670 USD
Retailer 15$3,102 USD
NZ Jewellers$4,028 USD

31 data points across 16 retailers

16 retailers$1,254 USD to $3,102 USD

A
Cheapest Retailer
-
$1,254 USD
Retailer 2
-
$1,360 USD
View
Price last confirmed 30 days ago
A
Retailer 3
-
$1,631 USD
View
A
Retailer 4
-
$1,637 USD
View
A
Retailer 5
-
$1,639 USD
View
Final sale: no returns
B+
Retailer 6
-
$1,686 USD
View
B+
Retailer 7
-
$1,744 USD
View
A
Retailer 8
-
$1,763 USD
View
B+
Retailer 9
-
$1,835 USD
View
B+
Retailer 10
-
$1,839 USD
View
B+
Retailer 11
-
$1,844 USD
View
B+
Retailer 12
-
$1,860 USD
View
B+
Retailer 13
-
$2,167 USD
View
B
Retailer 14
-
$2,670 USD
View
B
Retailer 15
-
$3,102 USD
View
Most Expensive
NZ Jewellers
4a6abdf3-a49c-481c-aab1-61bd85586a3c · Oct 23
$4,028 USD
View
Price last confirmed 13 days ago
15 more retailers have this diamond
Prices start from $1,254 USDSave up to $1,848 USD

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
$1,254 USD