Round|Natural|IGI

1.15ct H SI2 Round Natural Diamond

EX • H/SI2 • IGI 817606753

Shape and cutting style on the report: Round brilliant

Certificate IGI 817606753

Diamond specifications and retailer prices

From $1,694 USD
£1,334 GBP
As of October 30, 2026
Save $1,486 USD (47%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,403 USD at NZ Jewellers · As of October 11, 2026
View at NZ Jewellers

About this 1.15ct natural round diamond

This 1.15ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 817606753. Listed at 7 retailers as of October 29, 2026, with a 88% 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

1.15
Carat
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.5°
OriginNatural
Grading LabIGI
CertificateIGI 817606753
Dimensions6.69 × 6.72 × 4.20 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
Faint Yellowish Green
Top View
6.69 mm6.72 mm1.15 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 817606753
Side View
Table 57.0%Crown 35°Girdle: MediumPavilion 41.5°CuletDepth 62.7%

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: Oct 30
Current: $2,429 USD|Low: $1,688 USD|High: $3,200 USD|Avg: $2,357 USD|+2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 31, 2026
Retailer 2$1,694 USD
Retailer 4$1,995 USD
Retailer 1$2,429 USD
Retailer 3$3,180 USD

29 data points across 4 retailers

7 retailers$1,694 USD to $3,180 USD

A
Cheapest Retailer
-
$1,694 USD
£1,334 GBP
Retailer 2
-
$1,805 USD
View
Price last confirmed 21 days ago
Retailer 3
-
$1,889 USD
View
Price last confirmed 32 days ago
A
Retailer 4
-
$1,995 USD
View
A
Retailer 5
-
$2,429 USD
€2,313 EUR
View
B+
Retailer 6
-
$3,180 USD
£2,504 GBP
View
Most Expensive
NZ Jewellers
6a9c731f-3c81-40ec-aacc-ec1a56571c28 · Oct 11
$4,403 USD
View
Price last confirmed 20 days ago
6 more retailers have this diamond
Prices start from $1,694 USDSave up to $1,486 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
1.15ct Round
$1,694 USD