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Heart|Natural|GIA

1.73ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 2448855859

Certificate GIA 2448855859

Diamond specifications and retailer prices

From $10,005 NZD
CA$7,832 CAD
As of October 30, 2026
Save $9,644 NZD (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $19,649 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.73ct natural heart diamond

This 1.73ct natural heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2448855859. Listed at 12 retailers as of October 30, 2026, with prices from $10,005 to $19,649, a $9,644 spread on the same certified stone. NZ Jewellers lists it at $19,649. 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

1.73
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2448855859
Dimensions7.26 × 8.39 × 4.94 mm
L/W Ratio1.16
Top View
7.26 mm8.39 mm1.73 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2448855859
Side View
Table 58.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 58.9%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $19,649 NZD|Low: $10,550 NZD|High: $19,649 NZD|Avg: $12,758 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 10$10,550 NZD
Retailer 9$10,940 NZD
Retailer 6$11,201 NZD
Retailer 11$11,332 NZD
Retailer 2$11,377 NZD
Retailer 8$11,609 NZD
Retailer 7$11,977 NZD
Retailer 12$11,977 NZD
Retailer 3$12,367 NZD
Retailer 4$12,920 NZD
Retailer 5$17,308 NZD
NZ Jewellers$19,649 NZD

40 data points across 12 retailers

12 retailers$10,005 NZD to $19,649 NZD

A
Cheapest Retailer
-
$10,005 NZD
CA$7,832 CAD
A
Retailer 2
-
$10,550 NZD
$5,946 USD
View
A
Retailer 3
-
$10,940 NZD
$6,166 USD
View
A
Retailer 4
-
$11,201 NZD
$6,313 USD
View
A
Retailer 5
-
$11,332 NZD
$6,387 USD
View
A
Retailer 6
-
$11,377 NZD
£5,049 GBP
View
A
Retailer 7
-
$11,609 NZD
CA$9,087 CAD
View
A
Retailer 8
-
$11,977 NZD
$6,750 USD
View
A
Retailer 9
-
$11,977 NZD
$6,750 USD
View
B+
Retailer 10
-
$12,367 NZD
$6,970 USD
View
B+
Retailer 11
-
$17,308 NZD
£7,681 GBP
View
Most Expensive
B
NZ Jewellers
c53fb223-03de-49a4-badc-b00a7be0fb63 · Oct 30
$19,649 NZD
$11,074 USD
View
11 more retailers have this diamond
Prices start from $10,005 NZDSave up to $9,644 NZD

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
1.73ct Heart
$10,005 NZD