Heart|Natural|GIA

1.20ct H SI1 Heart Natural Diamond

EX • H/SI1 • GIA 6422701827

Certificate GIA 6422701827

Diamond specifications and retailer prices

From $1,357 USD
HK$10,600 HKD
Save $3,114 USD (70%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,471 USD at NZ Jewellers
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 6422701827. Listed at 13 retailers, with prices from $1,357 to $4,471 at NZ Jewellers, a $3,114 spread on the same certified stone. 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
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6422701827
Dimensions6.93 × 6.41 × 4.10 mm
L/W Ratio1.08
Top View
6.93 mm6.41 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6422701827
Side View
Table 57.0%CrownGirdle: THN-XTKPavilionCulet: NoneDepth 59.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 29
Current: $4,471 USD|Low: $1,357 USD|High: $4,613 USD|Avg: $2,171 USD|-3.1%
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
October 1, 2026
Retailer 10$1,357 USD
Retailer 11$1,550 USD
Retailer 8$1,686 USD
Retailer 9$1,810 USD
Retailer 14$1,833 USD
Retailer 5$1,891 USD
Retailer 4$1,908 USD
Retailer 7$1,918 USD
Retailer 12$1,977 USD
Retailer 3$2,115 USD
Retailer 6$2,301 USD
Retailer 2$2,471 USD
Retailer 13$3,250 USD
NZ Jewellers$4,471 USD

39 data points across 14 retailers

13 retailers$1,357 USD to $4,471 USD

A
Cheapest Retailer
-
$1,357 USD
HK$10,600 HKD
A
Retailer 2
-
$1,550 USD
View
A
Retailer 3
-
$1,686 USD
View
A
Retailer 4
-
$1,810 USD
£1,425 GBP
View
A
Retailer 5
-
$1,833 USD
View
A
Retailer 6
-
$1,908 USD
SGD 2,578 SGD
View
A
Retailer 7
-
$1,918 USD
View
A
Retailer 8
-
$1,981 USD
£1,560 GBP
View
A
Retailer 9
-
$2,115 USD
View
B+
Retailer 10
-
$2,301 USD
ZAR 37,176 ZAR
View
Price last confirmed 74 days ago
B+
Retailer 11
-
$2,471 USD
€2,353 EUR
View
B
Retailer 12
-
$3,250 USD
£2,559 GBP
View
Most Expensive
B
NZ Jewellers
39e87a42-5e5f-4e0f-b712-0a3b21b70841 · Sep 30
$4,471 USD
View
12 more retailers have this diamond
Prices start from $1,357 USDSave up to $3,114 USD

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.

A
1.20ct Heart
$1,357 USD