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Heart|Natural|GIA

0.77ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6542671284

Certificate GIA 6542671284

Diamond specifications and retailer prices

From $1,992 AUD
$1,369 USD
As of November 6, 2026
3 retailers carry this diamond
Most expensive: $1,992 AUD at The Diamond Guys
View at The Diamond Guys

About this 0.77ct natural heart diamond

This 0.77ct natural heart sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542671284. Listed at 3 retailers as of November 6, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.77
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.09°
Pavilion angle38.99°
OriginNatural
Grading LabGIA
CertificateGIA 6542671284
Dimensions5.49 × 6.34 × 3.75 mm
L/W Ratio1.15
Top View
5.49 mm6.34 mm0.77 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542671284
Side View
Table 59.0%Crown 38.09°Girdle: MED-VTKPavilion 38.99°Culet: NoneDepth 59.0%

Caratlytics Score

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

Last verified: Nov 6
Current: $1,777 AUD|Low: $1,415 AUD|High: $2,886 AUD|Avg: $1,787 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
September 30, 2026
Retailer 8$1,415 AUD
Retailer 10$1,436 AUD
Retailer 4$1,487 AUD
Retailer 5$1,541 AUD
Retailer 9$1,551 AUD
Retailer 3$1,585 AUD
Retailer 1$1,777 AUD
Retailer 7$1,821 AUD
Retailer 6$2,346 AUD
Retailer 2$2,886 AUD

9 data points across 10 retailers

3 retailers

Retailer 1
-
$1,541 AUD
Price last confirmed 36 days ago
Retailer 2
-
$1,821 AUD
View
Price last confirmed 41 days ago
Most Expensive
B+
The Diamond Guys
1922162321 · Nov 6
$1,992 AUD
$1,369 USD
View
2 more retailers have this diamond

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
$1,992 AUD