Heart|Natural|GIA

1.20ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6541235789

Certificate GIA 6541235789

Diamond specifications and retailer prices

From $1,922 USD
As of November 7, 2026
13 retailers carry this diamond
Most expensive: $4,287 USD at NZ Jewellers · As of October 24, 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 J 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 6541235789. Listed at 13 retailers as of November 7, 2026. 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6541235789
Dimensions6.77 × 7.26 × 4.24 mm
L/W Ratio1.07
Top View
6.77 mm7.26 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6541235789
Side View
Table 57.0%CrownGirdle: THN-XTKPavilionCulet: NoneDepth 58.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 7
Current: $4,287 USD|Low: $1,305 USD|High: $4,440 USD|Avg: $2,066 USD|-3.4%
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 24, 2026
Retailer 9$1,305 USD
Retailer 2$1,335 USD
Retailer 14$1,623 USD
Retailer 7$1,716 USD
Retailer 10$1,758 USD
Retailer 3$1,784 USD
Retailer 13$1,820 USD
Retailer 12$1,830 USD
Retailer 8$1,839 USD
Retailer 11$1,932 USD
Retailer 4$2,028 USD
Retailer 6$2,429 USD
Retailer 5$3,133 USD
NZ Jewellers$4,287 USD

26 data points across 14 retailers

13 retailers

Retailer 1
-
$1,305 USD
Price last confirmed 13 days ago
Retailer 2
-
$1,335 USD
View
Price last confirmed 14 days ago
Retailer 3
-
$1,758 USD
View
Price last confirmed 16 days ago
Retailer 4
-
$1,784 USD
View
Price last confirmed 14 days ago
Retailer 5
-
$1,820 USD
View
Price last confirmed 15 days ago
Retailer 6
-
$1,830 USD
View
Price last confirmed 15 days ago
Retailer 7
-
$1,839 USD
View
Price last confirmed 16 days ago
B+
Retailer 8
-
$1,922 USD
View
Retailer 9
-
$1,932 USD
View
Price last confirmed 14 days ago
Retailer 10
-
$2,028 USD
View
Price last confirmed 15 days ago
Retailer 11
-
$2,429 USD
View
Price last confirmed 33 days ago
Retailer 12
-
$3,133 USD
View
Price last confirmed 19 days ago
Most Expensive
NZ Jewellers
f1a2d860-d537-431d-b040-66519a43dec2 · Oct 24
$4,287 USD
View
Price last confirmed 13 days ago
12 more retailers have this diamond
Prices start from $1,922 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. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.20ct Heart
$1,922 USD