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Heart|Natural|IGI

1.21ct K SI2 Heart Natural Diamond

VG • K/SI2 • IGI 762534825

Shape and cutting style on the report: Heart brilliant

Certificate IGI 762534825

Diamond specifications and retailer prices

From $1,380 USD
As of November 6, 2026
Save $1,261 USD (48%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,800 USD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 762534825. Listed at 11 retailers as of November 4, 2026, with a 91% 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

1.21
Carat
K
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.4°
Pavilion angle44.1°
OriginNatural
Grading LabIGI
CertificateIGI 762534825
Dimensions6.31 × 7.33 × 4.44 mm
L/W Ratio1.16
Girdle conditionFaceted
Culet sizePointed
Top View
6.31 mm7.33 mm1.21 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 762534825
Side View
Table 62.0%Crown 36.4°Girdle: STK-THKPavilion 44.1°Culet: NoneDepth 60.6%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $1,380 USD|Low: $1,355 USD|High: $2,762 USD|Avg: $1,725 USD|-4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$1,355 USD
Retailer 1$1,380 USD
Retailer 6$1,558 USD
Retailer 4$1,572 USD
Retailer 5$1,580 USD
Retailer 2$1,625 USD
Retailer 7$1,853 USD
Retailer 3$2,641 USD

15 data points across 8 retailers

11 retailers$1,380 USD to $2,641 USD

B+
Cheapest Retailer
-
$1,380 USD
Retailer 2
-
$1,558 USD
View
Price last confirmed 36 days ago
Retailer 3
-
$1,558 USD
View
Price last confirmed 21 days ago
B+
Retailer 4
-
$1,572 USD
View
B+
Retailer 5
-
$1,580 USD
View
B+
Retailer 6
-
$1,625 USD
View
Retailer 7
-
$1,630 USD
View
Price last confirmed 36 days ago
Retailer 8
-
$1,798 USD
View
Price last confirmed 61 days ago
Retailer 9
-
$1,798 USD
View
Price last confirmed 38 days ago
B
Retailer 10
-
$2,641 USD
View
Most Expensive
NZ Jewellers
3935758c-5630-4161-aaa3-a05c1c27fe53 · Sep 30
$3,800 USD
View
Price last confirmed 37 days ago
10 more retailers have this diamond
Prices start from $1,380 USDSave up to $1,261 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+
1.21ct Heart
$1,380 USD