Heart|Natural|IGI

1.51ct I VS1 Heart Natural Diamond

VG • I/VS1 • IGI 816642220

Shape and cutting style on the report: Heart brilliant

Certificate IGI 816642220

Diamond specifications and retailer prices

From €3,140 EUR
$3,508 USD
As of October 26, 2026
Save €1,205 EUR (28%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €6,337 EUR at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 816642220. Listed at 13 retailers as of October 26, 2026, with a 38% 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

1.51
Carat
I
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 816642220
Dimensions6.87 × 7.71 × 4.73 mm
L/W Ratio1.12
Girdle conditionFaceted
Top View
6.87 mm7.71 mm1.51 ctI / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 816642220
Side View
Table 60.0%Crown 40.3°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 61.3%

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: Oct 26
Current: €4,344 EUR|Low: €2,651 EUR|High: €6,148 EUR|Avg: €3,683 EUR|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 27, 2026
Retailer 6€2,709 EUR
Retailer 10€3,140 EUR
Retailer 11€3,293 EUR
Retailer 8€3,333 EUR
Retailer 5€3,401 EUR
Retailer 2€3,418 EUR
Retailer 4€3,661 EUR
Retailer 7€3,699 EUR
Retailer 9€3,974 EUR
Retailer 1€4,344 EUR
Retailer 3€5,882 EUR

33 data points across 11 retailers

13 retailers€3,140 EUR to €4,344 EUR

Retailer 1
-
€2,709 EUR
₹288,287 INR
Price last confirmed 7 days ago
A
Retailer 2
-
€3,140 EUR
$3,508 USD
View
A
Retailer 3
-
€3,333 EUR
$3,724 USD
View
Retailer 4
-
€3,401 EUR
$3,800 USD
View
Price last confirmed 6 days ago
Retailer 5
-
€3,418 EUR
$3,819 USD
View
Price last confirmed 9 days ago
Retailer 6
-
€3,638 EUR
$4,064 USD
View
Price last confirmed 38 days ago
Retailer 7
-
€3,661 EUR
£3,221 GBP
View
Price last confirmed 7 days ago
Retailer 8
-
€3,699 EUR
$4,133 USD
View
Price last confirmed 7 days ago
Retailer 9
-
€3,974 EUR
$4,440 USD
View
Price last confirmed 7 days ago
Retailer 10
-
€4,197 EUR
$4,689 USD
View
Price last confirmed 38 days ago
B+
Retailer 11
-
€4,344 EUR
ZAR 78,412 ZAR
View
Retailer 12
-
€5,882 EUR
£5,174 GBP
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
b10318c9-8e9e-44d3-a033-2a84c3d205ea · Sep 25
€6,337 EUR
$7,080 USD
View
Price last confirmed 38 days ago
12 more retailers have this diamond
Prices start from €3,140 EURSave up to €1,205 EUR

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
1.51ct Heart
€3,140 EUR