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Heart|Natural|GIA

1.71ct D SI1 Heart Natural Diamond

ID • D/SI1

Diamond specifications and retailer prices

From $11,980 AUD
$8,415 USD
As of October 29, 2026
Save $242 AUD (2%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $12,222 AUD at Diamond Exchange Canada · As of October 30, 2026
View at Diamond Exchange Canada

About this 1.71ct natural heart diamond

This 1.71ct 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. Listed at 2 retailers as of October 29, 2026, with a relatively tight 2% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.71
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
Dimensions7.10 × 8.16 × 4.89 mm
L/W Ratio1.15
Top View
7.10 mm8.16 mm1.71 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 59.8%

Caratlytics Score

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

Last verified: Oct 29
Current: $12,222 AUD|Low: $11,960 AUD|High: $21,227 AUD|Avg: $14,103 AUD|-0.1%
Diamond Exchange Canada
Retailer 2
Retailer 3
Retailer 4
October 24, 2026
Retailer 3$11,980 AUD
Diamond Exchange Canada$12,222 AUD
Retailer 4$15,893 AUD
Retailer 2$21,227 AUD

8 data points across 4 retailers

2 retailers$11,980 AUD to $12,222 AUD

B+
Cheapest Retailer
-
$11,980 AUD
$8,415 USD
Most Expensive
B
Diamond Exchange Canada
1933155876 · Oct 30
$12,222 AUD
CA$11,924 CAD
View
1 more retailer has this diamond
Prices start from $11,980 AUDSave up to $242 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+
1.71ct Heart
$11,980 AUD