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Heart|Natural|IGI

1.51ct I IF Heart Natural Diamond

VG • I/IF • IGI 660478809

Shape and cutting style on the report: Heart brilliant

Certificate IGI 660478809

Diamond specifications and retailer prices

From $5,981 USD
As of November 4, 2026
Save $5,525 USD (48%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $11,506 USD at NZ Jewellers · As of November 3, 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 IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 660478809. Listed at 15 retailers as of November 3, 2026, with prices from $5,981 to $11,506, a $5,525 spread on the same certified stone. NZ Jewellers lists it at $11,506. 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
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle35.6°
OriginNatural
Grading LabIGI
CertificateIGI 660478809
Dimensions6.85 × 7.86 × 4.50 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizePointed
Top View
6.85 mm7.86 mm1.51 ctI / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 660478809
Side View
Table 55.0%Crown 35.4°Girdle: STK-THKPavilion 35.6°Culet: NoneDepth 57.3%

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 4
Current: $11,506 USD|Low: $6,104 USD|High: $11,506 USD|Avg: $7,688 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 4$6,104 USD
Retailer 10$6,349 USD
Retailer 6$6,350 USD
Retailer 2$6,667 USD
Retailer 9$6,879 USD
Retailer 7$6,985 USD
Retailer 8$7,938 USD
Retailer 5$8,452 USD
Retailer 3$10,107 USD
NZ Jewellers$11,506 USD

42 data points across 10 retailers

15 retailers$5,981 USD to $11,506 USD

A
Cheapest Retailer
-
$5,981 USD
A
Retailer 2
-
$6,000 USD
View
A
Retailer 3
-
$6,104 USD
View
B+
Retailer 4
-
$6,349 USD
View
Final sale: no returns
B+
Retailer 5
-
$6,350 USD
View
Retailer 6
-
$6,350 USD
View
Price last confirmed 20 days ago
A
Retailer 7
-
$6,375 USD
View
B+
Retailer 8
-
$6,667 USD
View
B+
Retailer 9
-
$6,879 USD
View
B+
Retailer 10
-
$6,985 USD
View
B+
Retailer 11
-
$7,039 USD
View
B
Retailer 12
-
$7,938 USD
View
B
Retailer 13
-
$8,452 USD
View
B
Retailer 14
-
$10,107 USD
View
Most Expensive
B
NZ Jewellers
ed8f324f-6620-4211-b1a8-36de590750c6 · Nov 3
$11,506 USD
View
14 more retailers have this diamond
Prices start from $5,981 USDSave up to $5,525 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
1.51ct Heart
$5,981 USD