Heart|Natural|IGI

1.55ct F SI1 Heart Natural Diamond

VG • F/SI1 • IGI 656470191

Shape and cutting style on the report: Heart brilliant

Certificate IGI 656470191

Diamond specifications and retailer prices

From $3,350 USD
₹319,062 INR
As of November 2, 2026
Save $1,074 USD (24%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $8,793 USD at NZ Jewellers · As of October 9, 2026
View at NZ Jewellers

About this 1.55ct natural heart diamond

This 1.55ct natural heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 656470191. Listed at 6 retailers as of November 2, 2026, with a 32% 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

1.55
Carat
F
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.6°
Pavilion angle43°
OriginNatural
Grading LabIGI
CertificateIGI 656470191
Dimensions6.63 × 7.87 × 4.97 mm
L/W Ratio1.19
Girdle conditionFaceted
Culet sizePointed
Top View
6.63 mm7.87 mm1.55 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 656470191
Side View
Table 64.0%Crown 38.6°Girdle: MED-THKPavilion 43°Culet: NoneDepth 63.2%

Caratlytics Score

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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: Nov 2
Current: $4,424 USD|Low: $3,350 USD|High: $8,475 USD|Avg: $5,663 USD|-15.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 4$3,350 USD
Retailer 5$4,168 USD
Retailer 1$4,424 USD
Retailer 10$4,585 USD
Retailer 8$4,935 USD
Retailer 7$5,257 USD
Retailer 11$5,257 USD
Retailer 3$5,490 USD
Retailer 2$6,269 USD
Retailer 9$6,339 USD
Retailer 6$8,452 USD

26 data points across 11 retailers

6 retailers$3,350 USD to $4,424 USD

A
Cheapest Retailer
-
$3,350 USD
₹319,062 INR
Retailer 2
-
$4,168 USD
€3,969 EUR
View
Price last confirmed 20 days ago
Retailer 3
-
$4,424 USD
£3,484 GBP
View
Retailer 4
-
$5,257 USD
View
Price last confirmed 26 days ago
Retailer 5
-
$6,066 USD
View
Price last confirmed 24 days ago
Most Expensive
NZ Jewellers
23481497-b048-4d8e-a37f-bdf4f87215d0 · Oct 9
$8,793 USD
View
Price last confirmed 24 days ago
5 more retailers have this diamond
Prices start from $3,350 USDSave up to $1,074 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
1.55ct Heart
$3,350 USD