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Heart|Natural|GIA

0.55ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 6532970264

Certificate GIA 6532970264

Diamond specifications and retailer prices

From £352 GBP
As of November 6, 2026
Save £103 GBP (23%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £455 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532970264. Listed at 4 retailers as of November 5, 2026, with prices from £352 to £455, a £103 spread on the same certified stone. Blue Nile lists it at £455. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6532970264
Dimensions5.15 × 5.68 × 3.31 mm
L/W Ratio1.10
Top View
5.15 mm5.68 mm0.55 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6532970264
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.2%

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: £455 GBP|Low: £318 GBP|High: £516 GBP|Avg: £414 GBP|-11.7%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 4£352 GBP
Retailer 3£385 GBP
Retailer 2£439 GBP
Blue Nile£455 GBP

40 data points across 4 retailers

4 retailers£352 GBP to £455 GBP

A
Cheapest Retailer
-
£352 GBP
Final sale: no returns
A
Retailer 2
-
£385 GBP
View
B+
Retailer 3
-
£439 GBP
View
Most Expensive
B+
Blue Nile
27266559 · Nov 5
£455 GBP
$609 USD
View
3 more retailers have this diamond
Prices start from £352 GBPSave up to £103 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
£352 GBP