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Heart|Natural|GIA

1.20ct F SI1 Heart Natural Diamond

ID • F/SI1 • GIA 1533868510

Certificate GIA 1533868510

Diamond specifications and retailer prices

From $5,105 NZD
As of November 5, 2026
Save $4,827 NZD (49%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $9,932 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 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 1533868510. Listed at 19 retailers as of November 5, 2026, with prices from $5,105 to $9,932, a $4,827 spread on the same certified stone. NZ Jewellers lists it at $9,932. 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
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle36.42°
Pavilion angle43.11°
OriginNatural
Grading LabGIA
CertificateGIA 1533868510
Dimensions7.31 × 6.60 × 4.33 mm
L/W Ratio1.11
Culet sizeNone
Key to symbols
Feather, Twinning Wisp
Top View
7.31 mm6.60 mm1.20 ctF / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1533868510
Side View
Table 58.0%Crown 36.42°Girdle: Slightly ThickPavilion 43.11°Culet: NoneDepth 59.3%

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 5
Current: $9,932 NZD|Low: $5,105 NZD|High: $10,239 NZD|Avg: $6,574 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 6, 2026
Retailer 6$5,105 NZD
Retailer 16$5,105 NZD
Retailer 9$5,262 NZD
Retailer 5$5,426 NZD
Retailer 11$5,531 NZD
Retailer 17$5,702 NZD
Retailer 10$5,877 NZD
Retailer 13$5,899 NZD
Retailer 3$5,920 NZD
Retailer 4$5,958 NZD
Retailer 2$6,005 NZD
Retailer 15$6,048 NZD
Retailer 7$6,373 NZD
Retailer 8$6,579 NZD
Retailer 12$6,638 NZD
Retailer 14$6,958 NZD
Retailer 18$9,534 NZD
NZ Jewellers$9,932 NZD

28 data points across 18 retailers

19 retailers$5,105 NZD to $9,932 NZD

B+
Cheapest Retailer
-
$5,105 NZD
B+
Retailer 2
-
$5,105 NZD
View
B+
Retailer 3
-
$5,262 NZD
View
Final sale: no returns
B+
Retailer 4
-
$5,426 NZD
View
B+
Retailer 5
-
$5,531 NZD
View
B+
Retailer 6
-
$5,702 NZD
View
Retailer 7
-
$5,877 NZD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$5,899 NZD
View
B+
Retailer 9
-
$5,920 NZD
View
B+
Retailer 10
-
$5,958 NZD
View
B+
Retailer 11
-
$6,005 NZD
View
B+
Retailer 12
-
$6,048 NZD
View
Retailer 13
-
$6,278 NZD
View
Price last confirmed 31 days ago
B
Retailer 14
-
$6,373 NZD
View
B+
Retailer 15
-
$6,579 NZD
View
B+
Retailer 16
-
$6,638 NZD
View
B
Retailer 17
-
$6,958 NZD
View
B
Retailer 18
-
$9,534 NZD
View
Most Expensive
B
NZ Jewellers
4e7c2b87-0a6b-470c-b50c-3fab8bf0dc01 · Nov 5
$9,932 NZD
$5,506 USD
View
18 more retailers have this diamond
Prices start from $5,105 NZDSave up to $4,827 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
$5,105 NZD