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Heart|Natural|IGI

1.22ct K SI2 Heart Natural Diamond

GD • K/SI2 • IGI 38

Certificate IGI 38

Diamond specifications and retailer prices

From £911 GBP
As of November 4, 2026
Save £129 GBP (12%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,040 GBP at B2C Jewels · As of November 6, 2026
View at B2C Jewels

About this 1.22ct natural heart diamond

This 1.22ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI. Listed at 2 retailers as of November 4, 2026, with a relatively tight 14% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.22
Carat
K
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 38
Dimensions7.01 × 7.31 mm
L/W Ratio1.04
Top View
7.01 mm7.31 mm1.22 ctK / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateIGI 38
Side View
Table 61.0%CrownGirdle: ETN-STKPavilionCulet: NoneDepth 57.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 4
Current: £1,040 GBP|Low: £911 GBP|High: £1,040 GBP|Avg: £954 GBP
B2C Jewels
Retailer 2
October 3, 2026
Retailer 2£911 GBP
B2C Jewels£1,040 GBP

2 data points across 2 retailers

2 retailers£911 GBP to £1,040 GBP

B+
Cheapest Retailer
-
£911 GBP
Most Expensive
B
B2C Jewels
27914963 · Nov 6
£1,040 GBP
$1,392 USD
View
1 more retailer has this diamond
Prices start from £911 GBPSave up to £129 GBP

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+
1.22ct Heart
£911 GBP