Round|Natural|IGI

1.13ct J SI2 Round Natural Diamond

EX • J/SI2 • IGI 457048190

Shape and cutting style on the report: Round brilliant

Certificate IGI 457048190

Diamond specifications and retailer prices

From $1,366 USD
£1,076 GBP
As of October 30, 2026
Save $1,241 USD (48%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $3,453 USD at NZ Jewellers · As of September 21, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 457048190. Listed at 5 retailers as of October 29, 2026, with a 91% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 457048190
Dimensions6.60 × 6.65 × 4.17 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.60 mm6.65 mm1.13 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 457048190
Side View
Table 55.5%Crown 36°Girdle: MediumPavilion 40.7°CuletDepth 62.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $1,366 USD|Low: $1,362 USD|High: $2,625 USD|Avg: $1,999 USD|-1.0%
Retailer 1
Retailer 2
Retailer 3
October 30, 2026
Retailer 1$1,366 USD
Retailer 3$1,925 USD
Retailer 2$2,607 USD

21 data points across 3 retailers

5 retailers$1,366 USD to $2,607 USD

A
Cheapest Retailer
-
$1,366 USD
£1,076 GBP
Retailer 2
-
$1,416 USD
View
Price last confirmed 44 days ago
Retailer 3
-
$1,634 USD
View
Price last confirmed 40 days ago
B
Retailer 4
-
$2,607 USD
£2,053 GBP
View
Most Expensive
NZ Jewellers
39937484-e81b-41a3-a4ae-ff6b890e3e08 · Sep 21
$3,453 USD
View
Price last confirmed 41 days ago
4 more retailers have this diamond
Prices start from $1,366 USDSave up to $1,241 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
$1,366 USD