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Heart|Natural|GIA

1.21ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 5426090686

Certificate GIA 5426090686

Diamond specifications and retailer prices

From $4,750 NZD
As of November 4, 2026
Save $6,030 NZD (56%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $10,780 NZD 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5426090686. Listed at 25 retailers as of November 4, 2026, with prices from $4,750 to $10,780, a $6,030 spread on the same certified stone. NZ Jewellers lists it at $10,780. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5426090686
Dimensions6.59 × 7.07 × 4.31 mm
L/W Ratio1.07
Top View
6.59 mm7.07 mm1.21 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5426090686
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 60.9%

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 4
Current: $6,012 NZD|Low: $4,916 NZD|High: $10,472 NZD|Avg: $6,458 NZD|+14.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$4,916 NZD
Retailer 6$5,020 NZD
Retailer 9$5,607 NZD
Retailer 8$5,821 NZD
Retailer 1$6,012 NZD
Retailer 2$6,085 NZD
Retailer 4$6,402 NZD
Retailer 3$7,203 NZD
Retailer 5$10,320 NZD

41 data points across 9 retailers

25 retailers$4,750 NZD to $10,780 NZD

B+
Cheapest Retailer
-
$4,750 NZD
B+
Retailer 2
-
$4,829 NZD
View
B+
Retailer 3
-
$4,916 NZD
View
Final sale: no returns
B+
Retailer 4
-
$4,957 NZD
View
B+
Retailer 5
-
$5,020 NZD
View
Retailer 6
-
$5,607 NZD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$5,607 NZD
View
B
Retailer 8
-
$5,644 NZD
View
B
Retailer 9
-
$5,729 NZD
View
B
Retailer 10
-
$5,821 NZD
View
B
Retailer 11
-
$6,012 NZD
View
B
Retailer 12
-
$6,036 NZD
View
B
Retailer 13
-
$6,085 NZD
View
B
Retailer 14
-
$6,090 NZD
View
B
Retailer 15
-
$6,368 NZD
View
B
Retailer 16
-
$6,368 NZD
View
B
Retailer 17
-
$6,402 NZD
View
B
Retailer 18
-
$6,469 NZD
View
B
Retailer 19
-
$6,584 NZD
View
Retailer 20
-
$7,012 NZD
View
Price last confirmed 14 days ago
B
Retailer 21
-
$7,203 NZD
View
B
Retailer 22
-
$7,268 NZD
View
B
Retailer 23
-
$8,931 NZD
View
B
Retailer 24
-
$10,320 NZD
View
Most Expensive
B
NZ Jewellers
b2c6f282-9c68-4ba7-94d9-d58a71100785 · Nov 5
$10,780 NZD
$5,976 USD
View
24 more retailers have this diamond
Prices start from $4,750 NZDSave up to $6,030 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
$4,750 NZD