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Heart|Natural|GIA

0.73ct F SI1 Heart Natural Diamond

GD • F/SI1 • GIA 5563255187

Certificate GIA 5563255187

Diamond specifications and retailer prices

From £604 GBP
$810 USD
As of November 1, 2026
Save £80 GBP (12%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £683 GBP at Blue Nile · As of November 3, 2026
View at Blue Nile

About this 0.73ct natural heart diamond

This 0.73ct 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 5563255187. Listed at 4 retailers as of November 1, 2026, with a relatively tight 13% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

0.73
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5563255187
Dimensions5.47 × 6.38 × 3.55 mm
L/W Ratio1.17
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
5.47 mm6.38 mm0.73 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5563255187
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 55.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £683 GBP|Low: £604 GBP|High: £733 GBP|Avg: £640 GBP|-6.7%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
November 3, 2026
Retailer 3£604 GBP
Retailer 4£617 GBP
Retailer 2£653 GBP
Blue Nile£683 GBP

40 data points across 4 retailers

4 retailers£604 GBP to £683 GBP

B+
Cheapest Retailer
-
£604 GBP
$810 USD
B+
Retailer 2
-
£617 GBP
SGD 1,119 SGD
View
B
Retailer 3
-
£653 GBP
View
Most Expensive
B
Blue Nile
30160364 · Nov 3
£683 GBP
$917 USD
View
3 more retailers have this diamond
Prices start from £604 GBPSave up to £80 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.

B+
0.73ct Heart
£604 GBP