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Heart|Natural|GIA

0.54ct I SI1 Heart Natural Diamond

GD • I/SI1 • GIA 7558020925

Certificate GIA 7558020925

Diamond specifications and retailer prices

From £306 GBP
As of November 6, 2026
Save £85 GBP (22%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £391 GBP at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 0.54ct natural heart diamond

This 0.54ct natural heart sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7558020925. Listed at 3 retailers as of November 6, 2026, with prices from £306 to £391, a £85 spread on the same certified stone. 77 Diamonds lists it at £391. 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

0.54
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558020925
Dimensions5.24 × 5.67 × 3.12 mm
L/W Ratio1.08
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
5.24 mm5.67 mm0.54 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7558020925
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 55.1%

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: £391 GBP|Low: £284 GBP|High: £425 GBP|Avg: £342 GBP|-6.2%
77 Diamonds
Retailer 2
Retailer 3
November 7, 2026
Retailer 2£306 GBP
Retailer 3£317 GBP
77 Diamonds£391 GBP

42 data points across 3 retailers

3 retailers£306 GBP to £391 GBP

A
Cheapest Retailer
-
£306 GBP
A
Retailer 2
-
£317 GBP
View
Final sale: no returns
Most Expensive
B+
77 Diamonds
HSCPQTWXDNDG · Nov 7
£391 GBP
View
2 more retailers have this diamond
Prices start from £306 GBPSave up to £85 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
0.54ct Heart
£306 GBP