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Heart|Natural|IGI

1.21ct I SI1 Heart Natural Diamond

VG • I/SI1 • IGI 827603570

Shape and cutting style on the report: Heart brilliant

Certificate IGI 827603570

Diamond specifications and retailer prices

From €2,986 EUR
£2,627 GBP
As of October 26, 2026
2 retailers carry this diamond
Most expensive: €2,986 EUR at MOH London
View at MOH London

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 827603570. Listed at 2 retailers as of October 26, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
I
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle38.5°
OriginNatural
Grading LabIGI
CertificateIGI 827603570
Dimensions6.42 × 7.50 × 4.42 mm
L/W Ratio1.17
Girdle conditionFaceted
Top View
6.42 mm7.50 mm1.21 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 827603570
Side View
Table 59.0%Crown 35.8°Girdle: MED-STKPavilion 38.5°CuletDepth 58.9%

Caratlytics Score

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B
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Price History

Last verified: Oct 26
Current: €2,986 EUR|Low: €1,279 EUR|High: €3,018 EUR|Avg: €2,129 EUR
MOH London
Retailer 2
October 26, 2026
Retailer 2€1,284 EUR
MOH London€2,986 EUR

35 data points across 2 retailers

2 retailers

Retailer 1
-
€1,284 EUR
₹136,576 INR
Price last confirmed 7 days ago
Most Expensive
B
MOH London
1AEB85488 · Oct 26
€2,986 EUR
£2,627 GBP
View
1 more retailer has this diamond

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.

B
1.21ct Heart
€2,986 EUR