Heart|Natural|GIA

1.21ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 6545247511

Certificate GIA 6545247511

Diamond specifications and retailer prices

From $1,735 USD
As of November 6, 2026
Save $2,336 USD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,012 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545247511. Listed at 13 retailers as of November 4, 2026, with a 135% 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
F
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6545247511
Dimensions6.59 × 7.23 × 4.29 mm
L/W Ratio1.10
Top View
6.59 mm7.23 mm1.21 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6545247511
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,735 USD|Low: $1,735 USD|High: $4,136 USD|Avg: $2,477 USD|-3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 1$1,735 USD
Retailer 9$1,843 USD
Retailer 10$2,104 USD
Retailer 8$2,290 USD
Retailer 2$2,432 USD
Retailer 6$2,469 USD
Retailer 4$2,532 USD
Retailer 7$2,670 USD
Retailer 3$2,717 USD
Retailer 5$4,071 USD

37 data points across 10 retailers

13 retailers$1,735 USD to $4,071 USD

A
Cheapest Retailer
-
$1,735 USD
A
Retailer 2
-
$1,843 USD
View
Final sale: no returns
A
Retailer 3
-
$2,104 USD
View
B+
Retailer 4
-
$2,290 USD
View
Retailer 5
-
$2,397 USD
View
Price last confirmed 42 days ago
B+
Retailer 6
-
$2,432 USD
View
B+
Retailer 7
-
$2,469 USD
View
B+
Retailer 8
-
$2,532 USD
View
B+
Retailer 9
-
$2,670 USD
View
B+
Retailer 10
-
$2,717 USD
View
Retailer 11
-
$2,766 USD
View
Price last confirmed 43 days ago
B
Retailer 12
-
$4,071 USD
View
Most Expensive
NZ Jewellers
e43a100d-f2ba-4ee1-a407-1e5eace99caa · Sep 25
$5,012 USD
View
Price last confirmed 42 days ago
12 more retailers have this diamond
Prices start from $1,735 USDSave up to $2,336 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
$1,735 USD