Round|Natural|GIA

1.00ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6422805013

Certificate GIA 6422805013

Diamond specifications and retailer prices

From $1,747 USD
As of November 6, 2026
Save $2,715 USD (61%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,462 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6422805013. Listed at 17 retailers as of November 5, 2026, with prices from $1,747 to $4,462, a $2,715 spread on the same certified stone. NZ Jewellers lists it at $4,462. 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

1.00
Carat
K
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6422805013
Dimensions6.39 × 6.33 × 4.00 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.39 mm6.33 mm1.00 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6422805013
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°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 6
Current: $4,462 USD|Low: $1,747 USD|High: $4,462 USD|Avg: $2,339 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 4$1,747 USD
Retailer 12$1,785 USD
Retailer 5$1,864 USD
Retailer 13$1,933 USD
Retailer 16$1,933 USD
Retailer 6$1,997 USD
Retailer 15$2,023 USD
Retailer 2$2,070 USD
Retailer 14$2,120 USD
Retailer 3$2,128 USD
Retailer 7$2,231 USD
Retailer 8$2,237 USD
Retailer 9$2,305 USD
Retailer 10$2,742 USD
Retailer 11$3,728 USD
NZ Jewellers$4,462 USD

28 data points across 16 retailers

17 retailers$1,747 USD to $4,462 USD

B+
Cheapest Retailer
-
$1,747 USD
B+
Retailer 2
-
$1,785 USD
View
B+
Retailer 3
-
$1,864 USD
View
Retailer 4
-
$1,933 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,933 USD
View
B+
Retailer 6
-
$1,997 USD
View
B+
Retailer 7
-
$2,023 USD
View
B+
Retailer 8
-
$2,070 USD
View
B+
Retailer 9
-
$2,088 USD
View
B+
Retailer 10
-
$2,120 USD
View
B+
Retailer 11
-
$2,128 USD
View
B
Retailer 12
-
$2,231 USD
View
B
Retailer 13
-
$2,237 USD
View
B
Retailer 14
-
$2,305 USD
View
B
Retailer 15
-
$2,742 USD
View
B
Retailer 16
-
$3,728 USD
View
Most Expensive
C
NZ Jewellers
01c352bc-f1d1-41cf-8e2a-01090afa6836 · Nov 5
$4,462 USD
View
16 more retailers have this diamond
Prices start from $1,747 USDSave up to $2,715 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.

B+
1.00ct Round
$1,747 USD