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Heart|Natural|GIA

1.21ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 6545247511

Certificate GIA 6545247511

Diamond specifications and retailer prices

From $3,130 NZD
As of November 6, 2026
Save $4,214 NZD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $9,041 NZD 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,130 NZD|Low: $3,130 NZD|High: $7,461 NZD|Avg: $4,468 NZD|-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$3,130 NZD
Retailer 9$3,325 NZD
Retailer 10$3,795 NZD
Retailer 8$4,131 NZD
Retailer 2$4,387 NZD
Retailer 6$4,454 NZD
Retailer 4$4,567 NZD
Retailer 7$4,816 NZD
Retailer 3$4,901 NZD
Retailer 5$7,344 NZD

37 data points across 10 retailers

13 retailers$3,130 NZD to $7,344 NZD

A
Cheapest Retailer
-
$3,130 NZD
A
Retailer 2
-
$3,325 NZD
View
Final sale: no returns
A
Retailer 3
-
$3,795 NZD
View
B+
Retailer 4
-
$4,131 NZD
View
Retailer 5
-
$4,324 NZD
View
Price last confirmed 43 days ago
B+
Retailer 6
-
$4,387 NZD
View
B+
Retailer 7
-
$4,454 NZD
View
B+
Retailer 8
-
$4,567 NZD
View
B+
Retailer 9
-
$4,816 NZD
View
B+
Retailer 10
-
$4,901 NZD
View
Retailer 11
-
$4,990 NZD
View
Price last confirmed 44 days ago
B
Retailer 12
-
$7,344 NZD
View
Most Expensive
NZ Jewellers
e43a100d-f2ba-4ee1-a407-1e5eace99caa · Sep 25
$9,041 NZD
$5,012 USD
View
Price last confirmed 42 days ago
12 more retailers have this diamond
Prices start from $3,130 NZDSave up to $4,214 NZD

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
$3,130 NZD