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Heart|Natural|GIA

0.51ct E SI1 Heart Natural Diamond

VG • E/SI1 • GIA 5543163685

Certificate GIA 5543163685

Diamond specifications and retailer prices

From £359 GBP
As of November 6, 2026
Save £394 GBP (52%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £754 GBP at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5543163685. Listed at 10 retailers as of November 6, 2026, with prices from £359 to £754, a £394 spread on the same certified stone. 77 Diamonds lists it at £754. 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

0.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5543163685
Dimensions5.61 × 4.98 × 2.76 mm
L/W Ratio1.13
Top View
5.61 mm4.98 mm0.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5543163685
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 55.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £754 GBP|Low: £326 GBP|High: £767 GBP|Avg: £575 GBP|+0.6%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2£359 GBP
Retailer 4£510 GBP
Retailer 3£545 GBP
Retailer 6£590 GBP
Retailer 7£590 GBP
Retailer 5£672 GBP
77 Diamonds£754 GBP

36 data points across 7 retailers

10 retailers£359 GBP to £754 GBP

A
Cheapest Retailer
-
£359 GBP
Final sale: no returns
A
Retailer 2
-
£425 GBP
View
B+
Retailer 3
-
£480 GBP
View
B+
Retailer 4
-
£510 GBP
View
B+
Retailer 5
-
£545 GBP
View
B
Retailer 6
-
£590 GBP
View
B
Retailer 7
-
£590 GBP
View
B
Retailer 8
-
£613 GBP
View
B
Retailer 9
-
£616 GBP
View
Most Expensive
B
77 Diamonds
HSMB4UD5GZF7 · Nov 6
£754 GBP
View
9 more retailers have this diamond
Prices start from £359 GBPSave up to £394 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
0.51ct Heart
£359 GBP