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Heart|Natural|GIA

1.55ct F SI2 Heart Natural Diamond

F/SI2 • GIA 5182780740

Certificate GIA 5182780740

Diamond specifications and retailer prices

From £5,969 GBP
€7,628 EUR
As of November 2, 2026
Save £474 GBP (7%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £6,443 GBP at Belgium Diamonds · As of November 2, 2026
View at Belgium Diamonds

About this 1.55ct natural heart diamond

This 1.55ct natural heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included) and certified by GIA 5182780740. Listed at 2 retailers as of November 2, 2026, with a relatively tight 8% 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

1.55
Carat
F
Colour
SI2
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5182780740
Dimensions8.05 × 7.93 × 3.77 mm
L/W Ratio1.02
Top View
8.05 mm7.93 mm1.55 ctF / SI2
OriginNatural
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5182780740
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: Very SmallDepth 47.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: £6,443 GBP|Low: £5,824 GBP|High: £6,443 GBP|Avg: £6,181 GBP
Belgium Diamonds
Retailer 2
November 2, 2026
Retailer 2£5,969 GBP
Belgium Diamonds£6,443 GBP

18 data points across 2 retailers

2 retailers£5,969 GBP to £6,443 GBP

B
Cheapest Retailer
-
£5,969 GBP
€7,628 EUR
Most Expensive
C
Belgium Diamonds
357008949 · Nov 2
£6,443 GBP
€8,234 EUR
View
1 more retailer has this diamond
Prices start from £5,969 GBPSave up to £474 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
£5,969 GBP