Heart|Natural|GIA

1.73ct H SI1 Heart Natural Diamond

VG • H/SI1 • GIA 1553154890

Certificate GIA 1553154890

Diamond specifications and retailer prices

From $4,672 USD
HK$36,500 HKD
As of November 1, 2026
Save $4,358 USD (48%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $11,275 USD at NZ Jewellers · As of September 25, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1553154890. Listed at 17 retailers as of November 1, 2026, with a 93% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.73
Carat
H
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553154890
Dimensions7.08 × 8.30 × 4.86 mm
L/W Ratio1.17
Girdle conditionFaceted
Top View
7.08 mm8.30 mm1.73 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553154890
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.5%

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: Nov 1
Current: $7,470 USD|Low: $4,654 USD|High: $10,324 USD|Avg: $6,282 USD|-4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 13$4,672 USD
Retailer 12$4,712 USD
Retailer 10$4,993 USD
Retailer 15$5,173 USD
Retailer 8$5,192 USD
Retailer 3$5,295 USD
Retailer 5$5,343 USD
Retailer 11$5,630 USD
Retailer 9$5,957 USD
Retailer 4$5,993 USD
Retailer 7$6,377 USD
Retailer 1$7,470 USD
Retailer 2$7,530 USD
Retailer 14$9,030 USD
Retailer 6$9,911 USD

28 data points across 15 retailers

17 retailers$4,672 USD to $9,030 USD

A
Cheapest Retailer
-
$4,672 USD
HK$36,500 HKD
A
Retailer 2
-
$4,712 USD
View
A
Retailer 3
-
$4,993 USD
View
B+
Retailer 4
-
$5,173 USD
€4,927 EUR
View
B+
Retailer 5
-
$5,192 USD
View
Final sale: no returns
B+
Retailer 6
-
$5,295 USD
View
B+
Retailer 7
-
$5,343 USD
View
B+
Retailer 8
-
$5,630 USD
View
B+
Retailer 9
-
$5,957 USD
£4,691 GBP
View
B+
Retailer 10
-
$5,993 USD
View
Retailer 11
-
$6,377 USD
A$9,811 AUD
View
Price last confirmed 23 days ago
B
Retailer 12
-
$6,850 USD
A$10,538 AUD
View
B+
Retailer 13
-
$7,470 USD
View
B+
Retailer 14
-
$7,530 USD
ZAR 121,645 ZAR
View
B
Retailer 15
-
$9,030 USD
£7,110 GBP
View
Retailer 16
-
$9,911 USD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
e9b70d29-f4e5-46f4-9fa0-7b0376c77384 · Sep 25
$11,275 USD
View
Price last confirmed 37 days ago
16 more retailers have this diamond
Prices start from $4,672 USDSave up to $4,358 USD

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
$4,672 USD