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Heart|Natural|GIA

0.78ct D SI1 Heart Natural Diamond

D/SI1 • GIA 6382589746

Certificate GIA 6382589746

Diamond specifications and retailer prices

From $2,564 AUD
£1,387 GBP
As of November 4, 2026
2 retailers carry this diamond
Most expensive: $2,564 AUD at MOH London
View at MOH London

About this 0.78ct natural heart diamond

This 0.78ct natural heart sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included) and certified by GIA 6382589746. Listed at 2 retailers as of November 4, 2026. 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

0.78
Carat
D
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishGood
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6382589746
Dimensions5.19 × 6.45 × 3.99 mm
L/W Ratio1.24
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Etch Channel
Top View
5.19 mm6.45 mm0.78 ctD / SI1
OriginNatural
PolishGood
SymmetryGood
FluorescenceStrong
CertificateGIA 6382589746
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 4
Current: $2,564 AUD|Low: $2,065 AUD|High: $2,599 AUD|Avg: $2,341 AUD|-0.3%
MOH London
Retailer 2
November 4, 2026
Retailer 2$2,107 AUD
MOH London$2,564 AUD

15 data points across 2 retailers

2 retailers

Retailer 1
-
$2,107 AUD
Price last confirmed 32 days ago
Most Expensive
B
MOH London
B36F16A25 · Nov 4
$2,564 AUD
£1,387 GBP
View
1 more retailer has 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
0.78ct Heart
$2,564 AUD