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Heart|Natural|GIA

1.21ct H SI2 Heart Natural Diamond

VG • H/SI2 • GIA 1156383057

Certificate GIA 1156383057

Diamond specifications and retailer prices

From $7,391 NZD
As of November 5, 2026
Save $2,498 NZD (25%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $15,822 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1156383057. Listed at 13 retailers as of November 5, 2026, with a 34% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1156383057
Dimensions6.37 × 7.84 × 3.82 mm
L/W Ratio1.23
Culet sizeNone
Top View
6.37 mm7.84 mm1.21 ctH / SI2
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 1156383057
Side View
Table 66.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 48.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $15,822 NZD|Low: $8,094 NZD|High: $15,822 NZD|Avg: $10,390 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 4$8,094 NZD
Retailer 7$8,570 NZD
Retailer 8$8,570 NZD
Retailer 9$8,570 NZD
Retailer 2$9,294 NZD
Retailer 5$9,337 NZD
Retailer 11$9,790 NZD
Retailer 3$9,878 NZD
Retailer 10$9,889 NZD
Retailer 12$10,441 NZD
Retailer 13$11,256 NZD
Retailer 6$15,066 NZD
NZ Jewellers$15,822 NZD

41 data points across 13 retailers

13 retailers$7,391 NZD to $9,889 NZD

B
Cheapest Retailer
-
$7,391 NZD
B
Retailer 2
-
$7,474 NZD
View
B
Retailer 3
-
$8,094 NZD
View
Retailer 4
-
$8,570 NZD
View
Price last confirmed 8 days ago
C
Retailer 5
-
$8,570 NZD
View
C
Retailer 6
-
$8,570 NZD
View
B
Retailer 7
-
$9,294 NZD
View
C
Retailer 8
-
$9,337 NZD
View
C
Retailer 9
-
$9,790 NZD
View
C
Retailer 10
-
$9,889 NZD
View
Retailer 11
-
$10,441 NZD
View
Price last confirmed 14 days ago
Retailer 12
-
$15,066 NZD
View
Price under review
Most Expensive
NZ Jewellers
1bb0eaf2-3cf1-4bd8-af76-9583fc411974 · Nov 5
$15,822 NZD
$8,771 USD
View
Price under review
12 more retailers have this diamond
Prices start from $7,391 NZDSave up to $2,498 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
$7,391 NZD