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Heart|Natural|GIA

0.55ct F SI1 Heart Natural Diamond

GD • F/SI1 • GIA 1529071370

Certificate GIA 1529071370

Diamond specifications and retailer prices

From £309 GBP
As of November 6, 2026
Save £96 GBP (24%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £405 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 0.55ct natural heart diamond

This 0.55ct natural heart sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1529071370. Listed at 4 retailers as of November 5, 2026, with prices from £309 to £405, a £96 spread on the same certified stone. Blue Nile lists it at £405. 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

0.55
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1529071370
Dimensions4.97 × 5.77 × 3.39 mm
L/W Ratio1.16
Culet sizeNone
Key to symbols
Cloud
Top View
4.97 mm5.77 mm0.55 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 1529071370
Side View
Table 58.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 58.9%

Caratlytics Score

How it works →
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: Nov 6
Current: £405 GBP|Low: £273 GBP|High: £455 GBP|Avg: £363 GBP|-11.0%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 3£309 GBP
Retailer 4£335 GBP
Retailer 2£382 GBP
Blue Nile£405 GBP

41 data points across 4 retailers

4 retailers£309 GBP to £405 GBP

A
Cheapest Retailer
-
£309 GBP
Final sale: no returns
A
Retailer 2
-
£335 GBP
View
B+
Retailer 3
-
£382 GBP
View
Most Expensive
B+
Blue Nile
24954498 · Nov 5
£405 GBP
$542 USD
View
3 more retailers have this diamond
Prices start from £309 GBPSave up to £96 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.

A
0.55ct Heart
£309 GBP