CaratHunter
Plans
Round|Natural|IGI

1.03ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 648418582

Shape and cutting style on the report: Round brilliant

Certificate IGI 648418582

Diamond specifications and retailer prices

From $1,220 USD
As of November 4, 2026
Save $1,991 USD (62%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,211 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct 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 648418582. Listed at 15 retailers as of November 4, 2026, with prices from $1,220 to $3,211, a $1,991 spread on the same certified stone. NZ Jewellers lists it at $3,211. 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

1.03
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.7°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 648418582
Dimensions6.49 × 6.44 × 4.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.49 mm6.44 mm1.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 648418582
Side View
Table 57.0%Crown 33.7°Girdle: MediumPavilion 41.6°Culet: NoneDepth 62.3%

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 4
Current: $1,259 USD|Low: $1,220 USD|High: $2,440 USD|Avg: $1,530 USD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$1,220 USD
Retailer 6$1,245 USD
Retailer 1$1,259 USD
Retailer 9$1,377 USD
Retailer 7$1,430 USD
Retailer 2$1,505 USD
Retailer 4$1,606 USD
Retailer 3$1,608 USD
Retailer 5$2,405 USD

41 data points across 9 retailers

15 retailers$1,220 USD to $3,211 USD

A
Cheapest Retailer
-
$1,220 USD
A
Retailer 2
-
$1,245 USD
View
A
Retailer 3
-
$1,259 USD
View
A
Retailer 4
-
$1,298 USD
View
Retailer 5
-
$1,317 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$1,317 USD
View
A
Retailer 7
-
$1,377 USD
View
A
Retailer 8
-
$1,430 USD
View
A
Retailer 9
-
$1,451 USD
View
A
Retailer 10
-
$1,505 USD
View
B+
Retailer 11
-
$1,519 USD
View
A
Retailer 12
-
$1,606 USD
View
A
Retailer 13
-
$1,608 USD
View
B
Retailer 14
-
$2,405 USD
View
Most Expensive
B
NZ Jewellers
f45d1d6c-b963-4e77-8cbb-49c732f40dcc · Nov 5
$3,211 USD
View
14 more retailers have this diamond
Prices start from $1,220 USDSave up to $1,991 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
1.03ct Round
$1,220 USD