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Heart|Natural|GIA

0.45ct E SI1 Heart Natural Diamond

GD • E/SI1 • GIA 5566248300

Certificate GIA 5566248300

Diamond specifications and retailer prices

From £328 GBP
$440 USD
As of October 29, 2026
Save £83 GBP (20%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £411 GBP at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

About this 0.45ct natural heart diamond

This 0.45ct natural heart sits in the sub-half-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 5566248300. Listed at 2 retailers as of October 29, 2026, with prices from £328 to £411, a £83 spread on the same certified stone. 77 Diamonds lists it at £411. 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

0.45
Carat
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5566248300
Dimensions4.54 × 5.29 × 3.18 mm
L/W Ratio1.17
Culet sizeNone
Key to symbols
Feather
Top View
4.54 mm5.29 mm0.45 ctE / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 5566248300
Side View
Table 53.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 60.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: £411 GBP|Low: £276 GBP|High: £411 GBP|Avg: £353 GBP|+5.7%
77 Diamonds
Retailer 2
October 30, 2026
Retailer 2£328 GBP
77 Diamonds£411 GBP

38 data points across 2 retailers

2 retailers£328 GBP to £411 GBP

B+
Cheapest Retailer
-
£328 GBP
$440 USD
Final sale: no returns
Most Expensive
B+
77 Diamonds
HSCPYJWCGRNU · Oct 30
£411 GBP
View
1 more retailer has this diamond
Prices start from £328 GBPSave up to £83 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+
0.45ct Heart
£328 GBP