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Heart|Natural|GIA

0.55ct F SI1 Heart Natural Diamond

GD • F/SI1 • GIA 6521236792

Certificate GIA 6521236792

Diamond specifications and retailer prices

From £335 GBP
As of November 6, 2026
Save £91 GBP (21%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £426 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 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 6521236792. Listed at 4 retailers as of November 6, 2026, with prices from £335 to £426, a £91 spread on the same certified stone. 77 Diamonds lists it at £426. 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
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6521236792
Dimensions5.23 × 5.79 × 3.35 mm
L/W Ratio1.11
Top View
5.23 mm5.79 mm0.55 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6521236792
Side View
Table 57.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 57.9%

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: £426 GBP|Low: £308 GBP|High: £461 GBP|Avg: £378 GBP|-5.9%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2£335 GBP
Retailer 3£344 GBP
Retailer 4£375 GBP
77 Diamonds£426 GBP

41 data points across 4 retailers

4 retailers£335 GBP to £426 GBP

A
Cheapest Retailer
-
£335 GBP
A
Retailer 2
-
£344 GBP
View
Final sale: no returns
A
Retailer 3
-
£375 GBP
View
Most Expensive
B+
77 Diamonds
HSCPUGMMQTWQ · Nov 6
£426 GBP
View
3 more retailers have this diamond
Prices start from £335 GBPSave up to £91 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
£335 GBP