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1.13ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 670479172

Shape and cutting style on the report: Round brilliant

Certificate IGI 670479172

Diamond specifications and retailer prices

From $2,397 USD
As of October 30, 2026
Save $3,198 USD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,595 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.13ct natural round diamond

This 1.13ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 670479172. Listed at 14 retailers as of October 30, 2026, with prices from $2,397 to $5,595, a $3,198 spread on the same certified stone. NZ Jewellers lists it at $5,595. 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

1.13
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 670479172
Dimensions6.62 × 6.59 × 4.15 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
6.62 mm6.59 mm1.13 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 670479172
Side View
Table 56.0%Crown 35.1°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.8%

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: Oct 30
Current: $3,138 USD|Low: $2,058 USD|High: $4,632 USD|Avg: $3,061 USD|+2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 6$2,470 USD
Retailer 2$2,521 USD
Retailer 7$2,635 USD
Retailer 3$2,894 USD
Retailer 1$3,138 USD
Retailer 5$3,259 USD
Retailer 4$4,601 USD

42 data points across 7 retailers

14 retailers$2,397 USD to $5,595 USD

A
Cheapest Retailer
-
$2,397 USD
A
Retailer 2
-
$2,470 USD
View
Final sale: no returns
A
Retailer 3
-
$2,521 USD
£1,985 GBP
View
B+
Retailer 4
-
$2,635 USD
View
B+
Retailer 5
-
$2,676 USD
View
B+
Retailer 6
-
$2,676 USD
View
B+
Retailer 7
-
$2,779 USD
View
B+
Retailer 8
-
$2,817 USD
View
B+
Retailer 9
-
$2,894 USD
£2,279 GBP
View
B+
Retailer 10
-
$3,088 USD
View
B+
Retailer 11
-
$3,138 USD
€2,989 EUR
View
B+
Retailer 12
-
$3,259 USD
ZAR 52,642 ZAR
View
B
Retailer 13
-
$4,601 USD
£3,623 GBP
View
Most Expensive
B
NZ Jewellers
a83b745a-ace1-4dc3-96ed-a9fd331a57d1 · Oct 30
$5,595 USD
View
13 more retailers have this diamond
Prices start from $2,397 USDSave up to $3,198 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
1.13ct Round
$2,397 USD