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Heart|Natural|IGI

1.00ct I SI1 Heart Natural Diamond

VG • I/SI1 • IGI 671474661

Shape and cutting style on the report: Heart brilliant

Certificate IGI 671474661

Diamond specifications and retailer prices

From $1,410 USD
As of November 4, 2026
Save $2,318 USD (62%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,728 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 671474661. Listed at 17 retailers as of November 4, 2026, with prices from $1,410 to $3,728, a $2,318 spread on the same certified stone. NZ Jewellers lists it at $3,728. 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

1.00
Carat
I
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle39.5°
OriginNatural
Grading LabIGI
CertificateIGI 671474661
Dimensions6.32 × 6.95 × 3.98 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Top View
6.32 mm6.95 mm1.00 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 671474661
Side View
Table 61.0%Crown 39.5°Girdle: MED-THKPavilion 39.5°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: $3,728 USD|Low: $1,334 USD|High: $3,728 USD|Avg: $1,820 USD
NZ Jewellers
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 6, 2026
Retailer 15$1,410 USD
Retailer 4$1,416 USD
Retailer 3$1,523 USD
Retailer 7$1,528 USD
Retailer 12$1,528 USD
Retailer 13$1,596 USD
Retailer 14$1,599 USD
Retailer 11$1,615 USD
Retailer 6$1,664 USD
Retailer 8$1,717 USD
Retailer 5$1,763 USD
Retailer 9$1,865 USD
Retailer 2$1,975 USD
Retailer 10$2,670 USD
NZ Jewellers$3,728 USD

42 data points across 15 retailers

17 retailers$1,410 USD to $3,728 USD

A
Cheapest Retailer
-
$1,410 USD
Final sale: no returns
A
Retailer 2
-
$1,416 USD
View
A
Retailer 3
-
$1,523 USD
View
Retailer 4
-
$1,528 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,528 USD
View
Retailer 6
-
$1,577 USD
View
Price last confirmed 53 days ago
A
Retailer 7
-
$1,596 USD
View
A
Retailer 8
-
$1,599 USD
View
B+
Retailer 9
-
$1,615 USD
View
B+
Retailer 10
-
$1,664 USD
View
B+
Retailer 11
-
$1,717 USD
View
B+
Retailer 12
-
$1,763 USD
View
Retailer 13
-
$1,819 USD
View
Price last confirmed 61 days ago
B+
Retailer 14
-
$1,865 USD
View
B+
Retailer 15
-
$1,975 USD
View
B
Retailer 16
-
$2,670 USD
View
Most Expensive
B
NZ Jewellers
670029f6-c686-4e30-8ea0-6695fb5a2655 · Nov 5
$3,728 USD
View
16 more retailers have this diamond
Prices start from $1,410 USDSave up to $2,318 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
1.00ct Heart
$1,410 USD