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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 £4,208 GBP
CA$7,832 CAD
As of October 30, 2026
Save £4,056 GBP (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £8,265 GBP 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 £4,208 to £8,265, a £4,056 spread on the same certified stone. NZ Jewellers lists it at £8,265. 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: £8,265 GBP|Low: £4,438 GBP|High: £8,265 GBP|Avg: £5,366 GBP
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 1, 2026
Retailer 10£4,438 GBP
Retailer 9£4,602 GBP
Retailer 6£4,712 GBP
Retailer 5£4,746 GBP
Retailer 11£4,767 GBP
Retailer 8£4,883 GBP
Retailer 7£5,038 GBP
Retailer 12£5,038 GBP
Retailer 3£5,202 GBP
Retailer 4£5,435 GBP
Retailer 2£7,280 GBP
NZ Jewellers£8,265 GBP

39 data points across 12 retailers

12 retailers£4,208 GBP to £8,265 GBP

A
Cheapest Retailer
-
£4,208 GBP
CA$7,832 CAD
A
Retailer 2
-
£4,438 GBP
$5,946 USD
View
A
Retailer 3
-
£4,602 GBP
$6,166 USD
View
A
Retailer 4
-
£4,712 GBP
$6,313 USD
View
A
Retailer 5
-
£4,746 GBP
View
A
Retailer 6
-
£4,767 GBP
$6,387 USD
View
A
Retailer 7
-
£4,883 GBP
CA$9,087 CAD
View
A
Retailer 8
-
£5,038 GBP
$6,750 USD
View
A
Retailer 9
-
£5,038 GBP
$6,750 USD
View
B+
Retailer 10
-
£5,202 GBP
$6,970 USD
View
B+
Retailer 11
-
£7,280 GBP
View
Most Expensive
B
NZ Jewellers
c53fb223-03de-49a4-badc-b00a7be0fb63 · Oct 30
£8,265 GBP
$11,074 USD
View
11 more retailers have this diamond
Prices start from £4,208 GBPSave up to £4,056 GBP

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
£4,208 GBP