Radiant|Natural|IGI

0.91ct F SI2 Radiant Natural Diamond

EX • F/SI2 • IGI 815675550

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI 815675550

Diamond specifications and retailer prices

From $1,197 USD
€1,140 EUR
As of October 27, 2026
Save $368 USD (23%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,600 USD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 0.91ct natural radiant diamond

This 0.91ct natural radiant sits in the just-under-one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 815675550. Listed at 9 retailers as of October 26, 2026, with a 31% 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

0.91
Carat
F
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.2°
Pavilion angle33°
OriginNatural
Grading LabIGI
CertificateIGI 815675550
Dimensions6.29 × 4.87 × 3.32 mm
L/W Ratio1.29
Girdle conditionFaceted
Top View
6.29 mm4.87 mm0.91 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 815675550
Side View
Table 66.0%Crown 44.2°Girdle: Slightly ThickPavilion 33°CuletDepth 68.2%

Caratlytics Score

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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 27
Current: $1,197 USD|Low: $787 USD|High: $1,976 USD|Avg: $1,261 USD|-18.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 27, 2026
Retailer 5$787 USD
Retailer 4$863 USD
Retailer 6$1,066 USD
Retailer 3$1,127 USD
Retailer 1$1,197 USD
Retailer 2$1,565 USD

18 data points across 6 retailers

9 retailers$1,197 USD to $1,565 USD

Retailer 1
-
$863 USD
Price last confirmed 7 days ago
Retailer 2
-
$1,066 USD
View
Price last confirmed 25 days ago
Retailer 3
-
$1,066 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$1,107 USD
View
Price last confirmed 32 days ago
Retailer 5
-
$1,127 USD
£887 GBP
View
Price last confirmed 7 days ago
A
Retailer 6
-
$1,197 USD
€1,140 EUR
View
Retailer 7
-
$1,230 USD
View
Price last confirmed 23 days ago
B+
Retailer 8
-
$1,565 USD
£1,232 GBP
View
Most Expensive
NZ Jewellers
18e0922a-176f-42f1-b4dc-5ea88bf52292 · Sep 30
$2,600 USD
View
Price last confirmed 32 days ago
8 more retailers have this diamond
Prices start from $1,197 USDSave up to $368 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
0.91ct Radiant
$1,197 USD