Heart|Natural|IGI

1.51ct H IF Heart Natural Diamond

VG • H/IF • IGI 635461868

Shape and cutting style on the report: Heart brilliant

Certificate IGI 635461868

Diamond specifications and retailer prices

From $6,739 USD
As of October 28, 2026
Save $4,186 USD (38%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $13,040 USD at NZ Jewellers · As of September 28, 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 H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI 635461868. Listed at 16 retailers as of October 28, 2026, with a 62% 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
H
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle39.8°
OriginNatural
Grading LabIGI
CertificateIGI 635461868
Dimensions6.78 × 7.89 × 4.76 mm
L/W Ratio1.16
Girdle conditionFaceted
Culet sizePointed
Top View
6.78 mm7.89 mm1.51 ctH / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 635461868
Side View
Table 59.0%Crown 36.5°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $10,925 USD|Low: $6,597 USD|High: $10,997 USD|Avg: $8,289 USD|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 7$6,739 USD
Retailer 5$7,190 USD
Retailer 4$7,196 USD
Retailer 2$7,417 USD
Retailer 6$7,961 USD
Retailer 3$9,494 USD
Retailer 8$9,860 USD
Retailer 1$10,925 USD

39 data points across 8 retailers

16 retailers$6,739 USD to $10,925 USD

B+
Cheapest Retailer
-
$6,739 USD
Returns within 30 days
B+
Retailer 2
-
$7,190 USD
View
Returns within 40 days
B+
Retailer 3
-
$7,196 USD
View
Final sale: no returns
B+
Retailer 4
-
$7,197 USD
View
Price last confirmed 13 days ago
Returns within 30 days
B+
Retailer 5
-
$7,417 USD
£5,840 GBP
View
Returns within 30 days
B+
Retailer 6
-
$7,797 USD
View
Price last confirmed 30 days ago
Returns within 21 days
B+
Retailer 7
-
$7,797 USD
View
Price last confirmed 11 days ago
Returns within 21 days
B+
Retailer 8
-
$7,917 USD
View
Price last confirmed 12 days ago
B+
Retailer 9
-
$7,961 USD
View
Returns within 30 days
B
Retailer 10
-
$8,996 USD
View
Price last confirmed 43 days ago
Returns within 30 days
B
Retailer 11
-
$8,996 USD
View
Price last confirmed 10 days ago
Returns within 30 days
B
Retailer 12
-
$8,996 USD
View
Price last confirmed 30 days ago
Returns within 30 days
B
Retailer 13
-
$9,494 USD
ZAR 153,380 ZAR
View
Returns within 7 days
B
Retailer 14
-
$10,925 USD
£8,602 GBP
View
B
Retailer 15
-
$13,040 USD
View
Price last confirmed 11 days ago
Returns within 30 days
Most Expensive
B
NZ Jewellers
cbe4308c-a3e2-4ee2-abe7-1ba03337595a · Sep 28
$13,040 USD
View
Price last confirmed 31 days ago
Returns within 30 days
15 more retailers have this diamond
Prices start from $6,739 USDSave up to $4,186 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.

B+
1.51ct Heart
$6,739 USD