Heart|Natural|GIA

1.21ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 6552329003

Certificate GIA 6552329003

Diamond specifications and retailer prices

From $1,753 USD
As of November 6, 2026
Save $2,299 USD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,250 USD at NZ Jewellers · As of September 25, 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 I 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 6552329003. Listed at 17 retailers as of November 4, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552329003
Dimensions6.29 × 7.39 × 4.32 mm
L/W Ratio1.17
Girdle conditionFaceted
Top View
6.29 mm7.39 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552329003
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 58.5%

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: $2,042 USD|Low: $1,728 USD|High: $4,337 USD|Avg: $2,464 USD|-5.2%
Retailer 1
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 3$1,753 USD
Retailer 5$1,859 USD
Retailer 13$1,918 USD
Retailer 4$1,939 USD
Retailer 1$2,042 USD
Retailer 11$2,059 USD
Retailer 6$2,106 USD
Retailer 12$2,125 USD
Retailer 15$2,160 USD
Retailer 8$2,283 USD
Retailer 2$2,383 USD
Retailer 9$2,831 USD
Retailer 7$3,019 USD
Retailer 14$3,556 USD
Retailer 10$4,052 USD

28 data points across 15 retailers

17 retailers$1,753 USD to $4,052 USD

A
Cheapest Retailer
-
$1,753 USD
A
Retailer 2
-
$1,859 USD
View
A
Retailer 3
-
$1,918 USD
View
A
Retailer 4
-
$1,939 USD
View
Final sale: no returns
A
Retailer 5
-
$2,042 USD
View
A
Retailer 6
-
$2,059 USD
View
A
Retailer 7
-
$2,106 USD
View
B+
Retailer 8
-
$2,125 USD
View
A
Retailer 9
-
$2,160 USD
View
B+
Retailer 10
-
$2,283 USD
View
B+
Retailer 11
-
$2,383 USD
View
B+
Retailer 12
-
$2,637 USD
View
B+
Retailer 13
-
$2,831 USD
View
Retailer 14
-
$3,019 USD
View
Price last confirmed 31 days ago
B
Retailer 15
-
$3,556 USD
View
B
Retailer 16
-
$4,052 USD
View
Most Expensive
NZ Jewellers
af40f1d1-938f-4390-8250-a7638881247b · Sep 25
$5,250 USD
View
Price last confirmed 42 days ago
16 more retailers have this diamond
Prices start from $1,753 USDSave up to $2,299 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
$1,753 USD