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Heart|Natural|GIA

1.20ct G SI2 Heart Natural Diamond

EX • G/SI2 • GIA 3405774054

Certificate GIA 3405774054

Diamond specifications and retailer prices

From $4,930 NZD
As of November 4, 2026
Save $6,257 NZD (56%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $11,187 NZD at NZ Jewellers · As of November 3, 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 G 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 3405774054. Listed at 25 retailers as of November 3, 2026, with prices from $4,930 to $11,187, a $6,257 spread on the same certified stone. NZ Jewellers lists it at $11,187. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3405774054
Dimensions6.20 × 7.30 × 4.51 mm
L/W Ratio1.18
Top View
6.20 mm7.30 mm1.20 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 3405774054
Side View
Table 61.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 61.8%

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: $11,187 NZD|Low: $4,990 NZD|High: $11,187 NZD|Avg: $7,157 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 10$4,990 NZD
Retailer 6$5,100 NZD
Retailer 3$5,166 NZD
Retailer 8$5,817 NZD
Retailer 7$6,040 NZD
Retailer 9$6,246 NZD
Retailer 5$6,335 NZD
Retailer 2$6,644 NZD
Retailer 4$10,710 NZD
NZ Jewellers$11,187 NZD

46 data points across 10 retailers

25 retailers$4,930 NZD to $11,187 NZD

B+
Cheapest Retailer
-
$4,930 NZD
B+
Retailer 2
-
$4,990 NZD
View
B+
Retailer 3
-
$5,100 NZD
View
Final sale: no returns
B+
Retailer 4
-
$5,145 NZD
View
B+
Retailer 5
-
$5,166 NZD
View
B+
Retailer 6
-
$5,356 NZD
View
B
Retailer 7
-
$5,464 NZD
View
B+
Retailer 8
-
$5,817 NZD
View
B+
Retailer 9
-
$5,817 NZD
View
B+
Retailer 10
-
$5,844 NZD
View
B
Retailer 11
-
$5,946 NZD
View
B
Retailer 12
-
$6,040 NZD
View
B
Retailer 13
-
$6,246 NZD
View
B
Retailer 14
-
$6,323 NZD
View
B+
Retailer 15
-
$6,335 NZD
View
B
Retailer 16
-
$6,599 NZD
View
B
Retailer 17
-
$6,599 NZD
View
B
Retailer 18
-
$6,644 NZD
View
B
Retailer 19
-
$6,713 NZD
View
B
Retailer 20
-
$6,812 NZD
View
Retailer 21
-
$7,275 NZD
View
Price last confirmed 13 days ago
B
Retailer 22
-
$7,545 NZD
View
B
Retailer 23
-
$9,273 NZD
View
B
Retailer 24
-
$10,710 NZD
View
Most Expensive
B
NZ Jewellers
17851e43-8b72-421c-a01c-b4fbbf250948 · Nov 3
$11,187 NZD
$6,306 USD
View
24 more retailers have this diamond
Prices start from $4,930 NZDSave up to $6,257 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
$4,930 NZD