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Heart|Natural|GIA

1.20ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 7546617126

Certificate GIA 7546617126

Diamond specifications and retailer prices

From $4,862 NZD
As of November 5, 2026
Save $705 NZD (13%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,493 NZD at Queensmith · As of October 9, 2026
View at Queensmith

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 7546617126. Listed at 19 retailers as of November 5, 2026, with a relatively tight 15% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7546617126
Dimensions6.76 × 7.36 × 4.20 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural
Top View
6.76 mm7.36 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 7546617126
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 57.0%

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: $10,493 NZD|Low: $4,133 NZD|High: $10,493 NZD|Avg: $5,938 NZD|+0.8%
Queensmith
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 5, 2026
Retailer 5$4,133 NZD
Retailer 11$4,483 NZD
Retailer 6$4,636 NZD
Retailer 2$4,862 NZD
Retailer 18$5,033 NZD
Retailer 3$5,161 NZD
Retailer 4$5,168 NZD
Retailer 17$5,478 NZD
Retailer 7$5,567 NZD
Retailer 8$5,736 NZD
Retailer 12$5,745 NZD
Retailer 9$5,800 NZD
Retailer 14$5,879 NZD
Retailer 10$5,935 NZD
Retailer 13$6,355 NZD
Retailer 15$6,606 NZD
Retailer 16$9,272 NZD
Queensmith$10,493 NZD

18 data points across 18 retailers

19 retailers$4,862 NZD to $5,567 NZD

Retailer 1
-
$4,133 NZD
Price last confirmed 36 days ago
B+
Retailer 2
-
$4,862 NZD
View
Retailer 3
-
$4,966 NZD
View
Price last confirmed 37 days ago
B
Retailer 4
-
$5,161 NZD
View
Retailer 5
-
$5,478 NZD
View
Price last confirmed 46 days ago
Retailer 6
-
$5,478 NZD
View
Price last confirmed 37 days ago
B+
Retailer 7
-
$5,567 NZD
View
Retailer 8
-
$5,690 NZD
View
Price last confirmed 37 days ago
Retailer 9
-
$5,736 NZD
View
Price last confirmed 29 days ago
Retailer 10
-
$5,800 NZD
View
Price last confirmed 29 days ago
Retailer 11
-
$5,879 NZD
View
Price last confirmed 35 days ago
Retailer 12
-
$5,935 NZD
View
Price last confirmed 29 days ago
Retailer 13
-
$6,323 NZD
View
Price last confirmed 46 days ago
Retailer 14
-
$6,323 NZD
View
Price last confirmed 39 days ago
Retailer 15
-
$6,606 NZD
View
Price last confirmed 38 days ago
Retailer 16
-
$9,272 NZD
View
Price last confirmed 37 days ago
Retailer 17
-
$9,546 NZD
View
Price last confirmed 38 days ago
Retailer 18
-
$9,546 NZD
View
Price last confirmed 48 days ago
Most Expensive
Queensmith
7546617126 · Oct 9
$10,493 NZD
£4,580 GBP
View
Price last confirmed 28 days ago
18 more retailers have this diamond
Prices start from $4,862 NZDSave up to $705 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
$4,862 NZD