CaratHunter
Plans
Round|Natural|IGI

1.30ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 651482131

Shape and cutting style on the report: Round brilliant

Certificate IGI 651482131

Diamond specifications and retailer prices

From $1,371 USD
As of November 5, 2026
Save $2,888 USD (68%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $4,259 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 651482131. Listed at 19 retailers as of November 5, 2026, with prices from $1,371 to $4,259, a $2,888 spread on the same certified stone. NZ Jewellers lists it at $4,259. 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

1.30
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.8°
OriginNatural
Grading LabIGI
CertificateIGI 651482131
Dimensions6.95 × 6.91 × 4.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.95 mm6.91 mm1.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 651482131
Side View
Table 59.0%Crown 33.8°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.9%

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: $1,371 USD|Low: $1,371 USD|High: $3,096 USD|Avg: $2,125 USD|-2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 1$1,371 USD
Retailer 7$1,515 USD
Retailer 2$1,652 USD
Retailer 8$1,850 USD
Retailer 4$1,959 USD
Retailer 3$2,131 USD
Retailer 6$2,319 USD
Retailer 5$3,050 USD

32 data points across 8 retailers

19 retailers$1,371 USD to $4,259 USD

A
Cheapest Retailer
-
$1,371 USD
A
Retailer 2
-
$1,515 USD
View
A
Retailer 3
-
$1,591 USD
View
A
Retailer 4
-
$1,652 USD
View
A
Retailer 5
-
$1,746 USD
View
Retailer 6
-
$1,746 USD
View
Price last confirmed 12 days ago
A
Retailer 7
-
$1,810 USD
View
A
Retailer 8
-
$1,827 USD
View
A
Retailer 9
-
$1,850 USD
View
A
Retailer 10
-
$1,883 USD
View
B+
Retailer 11
-
$1,926 USD
View
A
Retailer 12
-
$1,959 USD
View
B+
Retailer 13
-
$2,015 USD
View
A
Retailer 14
-
$2,131 USD
View
A
Retailer 15
-
$2,319 USD
View
B+
Retailer 16
-
$2,631 USD
View
B+
Retailer 17
-
$2,890 USD
View
B+
Retailer 18
-
$3,050 USD
View
Most Expensive
B
NZ Jewellers
e921917e-3950-4f9e-82a3-5d889092efa1 · Nov 5
$4,259 USD
View
18 more retailers have this diamond
Prices start from $1,371 USDSave up to $2,888 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
1.30ct Round
$1,371 USD