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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 $700 AUD
As of November 6, 2026
Save $768 AUD (52%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,468 AUD 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 $700 to $1,468, a $768 spread on the same certified stone. 77 Diamonds lists it at $1,468. 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: $1,468 AUD|Low: $636 AUD|High: $1,494 AUD|Avg: $1,120 AUD|+0.6%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$700 AUD
Retailer 4$994 AUD
Retailer 3$1,062 AUD
Retailer 6$1,150 AUD
Retailer 7$1,150 AUD
Retailer 5$1,308 AUD
77 Diamonds$1,468 AUD

36 data points across 7 retailers

10 retailers$700 AUD to $1,468 AUD

A
Cheapest Retailer
-
$700 AUD
Final sale: no returns
A
Retailer 2
-
$828 AUD
View
B+
Retailer 3
-
$934 AUD
View
B+
Retailer 4
-
$994 AUD
View
B+
Retailer 5
-
$1,062 AUD
View
B
Retailer 6
-
$1,150 AUD
View
B
Retailer 7
-
$1,150 AUD
View
B
Retailer 8
-
$1,193 AUD
View
B
Retailer 9
-
$1,199 AUD
View
Most Expensive
B
77 Diamonds
HSMB4UD5GZF7 · Nov 6
$1,468 AUD
£794 GBP
View
9 more retailers have this diamond
Prices start from $700 AUDSave up to $768 AUD

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
$700 AUD