Round|Natural|IGI

1.01ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 754512411

Shape and cutting style on the report: Round brilliant

Certificate IGI 754512411

Diamond specifications and retailer prices

From $1,143 USD
As of November 6, 2026
Save $2,439 USD (68%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,582 USD at NZ Jewellers · As of November 5, 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 IGI 754512411. Listed at 20 retailers as of November 5, 2026, with prices from $1,143 to $3,582, a $2,439 spread on the same certified stone. NZ Jewellers lists it at $3,582. 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 angle32.1°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 754512411
Dimensions6.47 × 6.49 × 3.94 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.47 mm6.49 mm1.01 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 754512411
Side View
Table 59.0%Crown 32.1°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.8%

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 6
Current: $3,582 USD|Low: $1,143 USD|High: $3,582 USD|Avg: $1,727 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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 2$1,143 USD
Retailer 10$1,300 USD
Retailer 9$1,361 USD
Retailer 16$1,396 USD
Retailer 13$1,405 USD
Retailer 4$1,468 USD
Retailer 7$1,468 USD
Retailer 19$1,524 USD
Retailer 6$1,536 USD
Retailer 20$1,565 USD
Retailer 3$1,604 USD
Retailer 8$1,608 USD
Retailer 14$1,630 USD
Retailer 11$1,694 USD
Retailer 15$1,720 USD
Retailer 17$1,792 USD
Retailer 18$1,975 USD
Retailer 12$2,197 USD
Retailer 5$2,586 USD
NZ Jewellers$3,582 USD

24 data points across 20 retailers

20 retailers$1,143 USD to $3,582 USD

A
Cheapest Retailer
-
$1,143 USD
A
Retailer 2
-
$1,300 USD
View
A
Retailer 3
-
$1,361 USD
View
A
Retailer 4
-
$1,396 USD
View
A
Retailer 5
-
$1,405 USD
View
B+
Retailer 6
-
$1,468 USD
View
Retailer 7
-
$1,468 USD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$1,524 USD
View
B+
Retailer 9
-
$1,536 USD
View
B+
Retailer 10
-
$1,565 USD
View
B+
Retailer 11
-
$1,604 USD
View
B+
Retailer 12
-
$1,608 USD
View
A
Retailer 13
-
$1,630 USD
View
B+
Retailer 14
-
$1,694 USD
View
A
Retailer 15
-
$1,720 USD
View
B+
Retailer 16
-
$1,792 USD
View
B+
Retailer 17
-
$1,975 USD
View
B
Retailer 18
-
$2,197 USD
View
Retailer 19
-
$2,586 USD
View
Price last confirmed 8 days ago
Most Expensive
C
NZ Jewellers
7026b706-70dc-4fa0-bdf0-ca6f9984962b · Nov 5
$3,582 USD
View
19 more retailers have this diamond
Prices start from $1,143 USDSave up to $2,439 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
$1,143 USD