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Heart|Natural|GIA

0.55ct E SI1 Heart Natural Diamond

GD • E/SI1 • GIA 6525265799

Certificate GIA 6525265799

Diamond specifications and retailer prices

From £312 GBP
As of November 6, 2026
Save £88 GBP (22%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £399 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.55ct natural heart diamond

This 0.55ct natural heart sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6525265799. Listed at 4 retailers as of November 6, 2026, with prices from £312 to £399, a £88 spread on the same certified stone. 77 Diamonds lists it at £399. 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
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6525265799
Dimensions4.89 × 5.71 × 3.26 mm
L/W Ratio1.17
Top View
4.89 mm5.71 mm0.55 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6525265799
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 57.2%

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: £399 GBP|Low: £285 GBP|High: £442 GBP|Avg: £351 GBP|-8.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4£312 GBP
Retailer 2£322 GBP
Retailer 3£350 GBP
77 Diamonds£399 GBP

42 data points across 4 retailers

4 retailers£312 GBP to £399 GBP

A
Cheapest Retailer
-
£312 GBP
A
Retailer 2
-
£322 GBP
View
Final sale: no returns
B+
Retailer 3
-
£350 GBP
View
Most Expensive
B+
77 Diamonds
HSCPNSPFKUVK · Nov 6
£399 GBP
View
3 more retailers have this diamond
Prices start from £312 GBPSave up to £88 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
£312 GBP