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Heart|Natural|IGI

1.55ct H SI1 Heart Natural Diamond

VG • H/SI1 • IGI 185544942

Shape and cutting style on the report: Heart brilliant

Certificate IGI 185544942

Diamond specifications and retailer prices

From £5,278 GBP
As of November 7, 2026
Save £2,277 GBP (30%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £7,556 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.55ct natural heart diamond

This 1.55ct natural heart sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 185544942. Listed at 2 retailers as of November 4, 2026, with prices from £5,278 to £7,556, a £2,277 spread on the same certified stone. MOH London lists it at £7,556. 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

1.55
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 185544942
Dimensions7.22 × 8.03 × 4.70 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Top View
7.22 mm8.03 mm1.55 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 185544942
Side View
Table 58.5%CrownGirdle: MED-STKPavilionCulet: NoneDepth 58.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 7
Current: £7,556 GBP|Low: £5,234 GBP|High: £7,667 GBP|Avg: £6,241 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
November 7, 2026
Retailer 2£5,278 GBP
Retailer 3£5,806 GBP
MOH London£7,556 GBP

35 data points across 3 retailers

2 retailers£5,278 GBP to £7,556 GBP

B
Cheapest Retailer
-
£5,278 GBP
Most Expensive
C
MOH London
A088A4DF2 · Nov 4
£7,556 GBP
View
1 more retailer has this diamond
Prices start from £5,278 GBPSave up to £2,277 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
1.55ct Heart
£5,278 GBP