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Heart|Natural|GIA

1.21ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 1418156170

Certificate GIA 1418156170

Diamond specifications and retailer prices

From $5,224 NZD
As of November 6, 2026
Save $10,290 NZD (66%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $15,515 NZD at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1418156170. Listed at 8 retailers as of November 6, 2026, with prices from $5,224 to $15,515, a $10,290 spread on the same certified stone. Yorxs lists it at $15,515. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1418156170
Dimensions7.26 × 7.37 × 4.00 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Needle
Top View
7.26 mm7.37 mm1.21 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1418156170
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 54.3%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $8,303 NZD|Low: $5,224 NZD|High: $15,638 NZD|Avg: $10,465 NZD|-37.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Yorxs
November 7, 2026
Retailer 4$5,224 NZD
Retailer 3$5,554 NZD
Retailer 6$5,617 NZD
Retailer 5$5,812 NZD
Retailer 7$7,071 NZD
Retailer 1$8,303 NZD
Retailer 2$8,920 NZD
Yorxs$15,515 NZD

45 data points across 8 retailers

8 retailers$5,224 NZD to $15,515 NZD

B+
Cheapest Retailer
-
$5,224 NZD
B+
Retailer 2
-
$5,554 NZD
View
B+
Retailer 3
-
$5,617 NZD
View
B+
Retailer 4
-
$5,812 NZD
View
Final sale: no returns
B
Retailer 5
-
$7,071 NZD
View
B
Retailer 6
-
$8,303 NZD
View
B
Retailer 7
-
$8,920 NZD
View
Most Expensive
B
Yorxs
217813255 · Nov 6
$15,515 NZD
€8,191 EUR
View
7 more retailers have this diamond
Prices start from $5,224 NZDSave up to $10,290 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.

B+
1.21ct Heart
$5,224 NZD