CaratHunter
Plans
Heart|Natural|GIA

1.20ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 5553470793

Certificate GIA 5553470793

Diamond specifications and retailer prices

From $4,872 NZD
As of November 6, 2026
Save $5,217 NZD (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,089 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5553470793. Listed at 19 retailers as of November 5, 2026, with prices from $4,872 to $10,089, a $5,217 spread on the same certified stone. NZ Jewellers lists it at $10,089. 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

1.20
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.48°
Pavilion angle43.49°
OriginNatural
Grading LabGIA
CertificateGIA 5553470793
Dimensions7.24 × 6.27 × 4.52 mm
L/W Ratio1.15
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
7.24 mm6.27 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553470793
Side View
Table 59.0%Crown 37.48°Girdle: Slightly ThickPavilion 43.49°Culet: NoneDepth 62.4%

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: $10,089 NZD|Low: $4,872 NZD|High: $10,399 NZD|Avg: $6,733 NZD|-3.0%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 7, 2026
Retailer 5$4,872 NZD
Retailer 15$5,109 NZD
Retailer 14$5,264 NZD
Retailer 9$5,504 NZD
Retailer 16$5,534 NZD
Retailer 13$5,538 NZD
Retailer 8$5,791 NZD
Retailer 12$5,902 NZD
Retailer 11$5,924 NZD
Retailer 18$5,964 NZD
Retailer 10$5,969 NZD
Retailer 7$6,146 NZD
Retailer 3$6,377 NZD
Retailer 4$6,582 NZD
Retailer 17$6,642 NZD
Retailer 6$7,068 NZD
Retailer 2$9,490 NZD
NZ Jewellers$10,089 NZD

27 data points across 18 retailers

19 retailers$4,872 NZD to $10,089 NZD

B+
Cheapest Retailer
-
$4,872 NZD
B+
Retailer 2
-
$5,109 NZD
View
B+
Retailer 3
-
$5,264 NZD
View
Final sale: no returns
B+
Retailer 4
-
$5,504 NZD
View
B+
Retailer 5
-
$5,534 NZD
View
B+
Retailer 6
-
$5,538 NZD
View
B+
Retailer 7
-
$5,791 NZD
View
B+
Retailer 8
-
$5,902 NZD
View
B+
Retailer 9
-
$5,924 NZD
View
B
Retailer 10
-
$5,964 NZD
View
Retailer 11
-
$5,969 NZD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$6,146 NZD
View
Retailer 13
-
$6,377 NZD
View
Price last confirmed 31 days ago
B
Retailer 14
-
$6,377 NZD
View
B
Retailer 15
-
$6,582 NZD
View
B
Retailer 16
-
$6,642 NZD
View
B
Retailer 17
-
$7,068 NZD
View
B
Retailer 18
-
$9,490 NZD
View
Most Expensive
B
NZ Jewellers
2fce64ee-7c30-4c4a-bfd7-58f9eb41f63c · Nov 5
$10,089 NZD
$5,593 USD
View
18 more retailers have this diamond
Prices start from $4,872 NZDSave up to $5,217 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+
1.20ct Heart
$4,872 NZD