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Heart|Natural|GIA

0.77ct E SI1 Heart Natural Diamond

GD • E/SI1 • GIA 1146246642

Certificate GIA 1146246642

Diamond specifications and retailer prices

From $3,647 AUD
As of November 5, 2026
Save $3,387 AUD (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $8,417 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.77ct natural heart diamond

This 0.77ct natural heart sits in the just-under-one-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 1146246642. Listed at 9 retailers as of November 4, 2026, with a 93% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.77
Carat
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1146246642
Dimensions6.31 × 5.72 × 3.45 mm
L/W Ratio1.10
Culet sizeNone
Top View
6.31 mm5.72 mm0.77 ctE / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 1146246642
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 54.6%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $8,417 AUD|Low: $3,647 AUD|High: $8,417 AUD|Avg: $5,026 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6$3,647 AUD
Retailer 7$3,647 AUD
Retailer 5$3,816 AUD
Retailer 9$3,951 AUD
Retailer 8$4,208 AUD
Retailer 2$4,260 AUD
Retailer 3$6,011 AUD
Retailer 4$7,034 AUD
NZ Jewellers$8,417 AUD

44 data points across 9 retailers

9 retailers$3,647 AUD to $7,034 AUD

Retailer 1
-
$3,647 AUD
Price last confirmed 8 days ago
B
Retailer 2
-
$3,647 AUD
View
B
Retailer 3
-
$3,816 AUD
View
B
Retailer 4
-
$3,951 AUD
View
B
Retailer 5
-
$4,208 AUD
View
B
Retailer 6
-
$4,260 AUD
View
C
Retailer 7
-
$6,011 AUD
View
C
Retailer 8
-
$7,034 AUD
View
Most Expensive
NZ Jewellers
1f0ca68b-130a-477a-b953-95e6477e266c · Nov 5
$8,417 AUD
$5,783 USD
View
Price under review
8 more retailers have this diamond
Prices start from $3,647 AUDSave up to $3,387 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.

B
0.77ct Heart
$3,647 AUD