Heart|Natural|GIA

1.53ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 6552739831

Certificate GIA 6552739831

Diamond specifications and retailer prices

From $13,155 AUD
$9,241 USD
As of October 31, 2026
5 retailers carry this diamond
Most expensive: $13,155 AUD at Blue Nile
View at Blue Nile

About this 1.53ct natural heart diamond

This 1.53ct natural heart sits in the one-and-a-half to two 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 6552739831. Listed at 5 retailers as of October 31, 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

1.53
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552739831
Dimensions7.24 × 7.88 × 4.52 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizeNone
Top View
7.24 mm7.88 mm1.53 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552739831
Side View
Table 57.0%CrownGirdle: Slightly Thick to Very ThickPavilionCulet: NDepth 57.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: $13,155 AUD|Low: $9,417 AUD|High: $13,155 AUD|Avg: $11,493 AUD|+11.1%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 3$10,274 AUD
Retailer 7$10,374 AUD
Retailer 6$11,131 AUD
Retailer 4$11,302 AUD
Retailer 8$11,474 AUD
Retailer 2$12,111 AUD
Retailer 5$12,844 AUD
Blue Nile$13,155 AUD

17 data points across 8 retailers

5 retailers

Retailer 1
-
$11,131 AUD
$7,819 USD
Price last confirmed 10 days ago
Retailer 2
-
$11,302 AUD
$7,939 USD
View
Price last confirmed 7 days ago
Retailer 3
-
$12,111 AUD
€8,102 EUR
View
Price last confirmed 8 days ago
Retailer 4
-
$12,844 AUD
$9,022 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Blue Nile
29650954 · Oct 31
$13,155 AUD
$9,241 USD
View
4 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
1.53ct Heart
$13,155 AUD