Heart|Natural|GIA

1.21ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 2245042739

Certificate GIA 2245042739

Diamond specifications and retailer prices

From $1,612 USD
As of November 6, 2026
Save $2,975 USD (65%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,587 USD at NZ Jewellers · As of November 5, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2245042739. Listed at 12 retailers as of November 5, 2026, with prices from $1,612 to $4,587, a $2,975 spread on the same certified stone. NZ Jewellers lists it at $4,587. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Pavilion angle38.94°
OriginNatural
Grading LabGIA
CertificateGIA 2245042739
Dimensions6.61 × 7.21 × 4.29 mm
L/W Ratio1.09
Key to symbols
Twinning Wisp, Feather, Crystal, Needle
Top View
6.61 mm7.21 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245042739
Side View
Table 62.0%CrownGirdle: THK-VTKPavilion 38.94°Culet: NoneDepth 59.5%

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 6
Current: $4,587 USD|Low: $1,612 USD|High: $4,901 USD|Avg: $2,765 USD|-6.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$1,612 USD
Retailer 3$2,080 USD
Retailer 2$2,128 USD
Retailer 6$2,194 USD
Retailer 5$2,242 USD
Retailer 9$2,295 USD
Retailer 7$2,412 USD
Retailer 4$2,718 USD
Retailer 11$3,349 USD
Retailer 8$3,834 USD
NZ Jewellers$4,587 USD

38 data points across 11 retailers

12 retailers$1,612 USD to $4,587 USD

A
Cheapest Retailer
-
$1,612 USD
B+
Retailer 2
-
$2,080 USD
View
B+
Retailer 3
-
$2,128 USD
View
B+
Retailer 4
-
$2,194 USD
View
B+
Retailer 5
-
$2,242 USD
View
B+
Retailer 6
-
$2,295 USD
View
B+
Retailer 7
-
$2,412 USD
View
B
Retailer 8
-
$2,468 USD
View
B+
Retailer 9
-
$2,718 USD
View
B
Retailer 10
-
$3,349 USD
View
B
Retailer 11
-
$3,834 USD
View
Most Expensive
B
NZ Jewellers
4f1787ab-5746-4b1c-9857-b23407ac4cfd · Nov 5
$4,587 USD
View
11 more retailers have this diamond
Prices start from $1,612 USDSave up to $2,975 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
1.21ct Heart
$1,612 USD