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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 $868 NZD
As of November 6, 2026
Save $952 NZD (52%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,820 NZD 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 $868 to $1,820, a $952 spread on the same certified stone. 77 Diamonds lists it at $1,820. 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: $1,820 NZD|Low: $788 NZD|High: $1,852 NZD|Avg: $1,388 NZD|+0.6%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$868 NZD
Retailer 4$1,232 NZD
Retailer 3$1,317 NZD
Retailer 6$1,425 NZD
Retailer 7$1,425 NZD
Retailer 5$1,622 NZD
77 Diamonds$1,820 NZD

36 data points across 7 retailers

10 retailers$868 NZD to $1,820 NZD

A
Cheapest Retailer
-
$868 NZD
Final sale: no returns
A
Retailer 2
-
$1,026 NZD
View
B+
Retailer 3
-
$1,158 NZD
View
B+
Retailer 4
-
$1,232 NZD
View
B+
Retailer 5
-
$1,317 NZD
View
B
Retailer 6
-
$1,425 NZD
View
B
Retailer 7
-
$1,425 NZD
View
B
Retailer 8
-
$1,479 NZD
View
B
Retailer 9
-
$1,486 NZD
View
Most Expensive
B
77 Diamonds
HSMB4UD5GZF7 · Nov 6
$1,820 NZD
£794 GBP
View
9 more retailers have this diamond
Prices start from $868 NZDSave up to $952 NZD

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
$868 NZD