Heart|Natural|GIA

1.81ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6511982574

Certificate GIA 6511982574

Diamond specifications and retailer prices

From $8,257 AUD
$5,800 USD
As of October 31, 2026
Save $3,232 AUD (28%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $11,488 AUD at Jared · As of October 30, 2026
View at Jared

About this 1.81ct natural heart diamond

This 1.81ct 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 6511982574. Listed at 11 retailers as of October 30, 2026, with prices from $8,257 to $11,488, a $3,232 spread on the same certified stone. Jared lists it at $11,488. 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

1.81
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6511982574
Dimensions7.56 × 8.24 × 4.73 mm
L/W Ratio1.09
Top View
7.56 mm8.24 mm1.81 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6511982574
Side View
Table 59.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 57.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $11,488 AUD|Low: $8,257 AUD|High: $13,034 AUD|Avg: $10,872 AUD|-11.6%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 10$8,257 AUD
Retailer 5$8,583 AUD
Retailer 9$8,768 AUD
Retailer 3$8,876 AUD
Retailer 6$10,229 AUD
Retailer 8$10,391 AUD
Retailer 7$11,118 AUD
Retailer 11$11,118 AUD
Retailer 2$11,120 AUD
Retailer 4$11,404 AUD
Jared$11,488 AUD

40 data points across 11 retailers

11 retailers$8,257 AUD to $11,488 AUD

A
Cheapest Retailer
-
$8,257 AUD
$5,800 USD
A
Retailer 2
-
$8,583 AUD
$6,029 USD
View
A
Retailer 3
-
$8,768 AUD
$6,159 USD
View
A
Retailer 4
-
$8,876 AUD
$6,235 USD
View
B+
Retailer 5
-
$10,229 AUD
$7,185 USD
View
B+
Retailer 6
-
$10,391 AUD
$7,299 USD
View
B+
Retailer 7
-
$11,118 AUD
$7,810 USD
View
B+
Retailer 8
-
$11,118 AUD
$7,810 USD
View
B+
Retailer 9
-
$11,120 AUD
£6,151 GBP
View
B+
Retailer 10
-
$11,404 AUD
€7,629 EUR
View
Most Expensive
B+
Jared
154770093 · Oct 30
$11,488 AUD
$8,070 USD
View
10 more retailers have this diamond
Prices start from $8,257 AUDSave up to $3,232 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.

A
1.81ct Heart
$8,257 AUD