Heart|Natural|GIA

1.20ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6382112830

Certificate GIA 6382112830

Diamond specifications and retailer prices

From $2,349 USD
As of November 6, 2026
Save $3,199 USD (58%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $5,548 USD 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 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 6382112830. Listed at 20 retailers as of November 5, 2026, with prices from $2,349 to $5,548, a $3,199 spread on the same certified stone. NZ Jewellers lists it at $5,548. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6382112830
Dimensions6.70 × 7.12 × 4.18 mm
L/W Ratio1.06
Culet sizeNone
Top View
6.70 mm7.12 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6382112830
Side View
Table 56.0%CrownGirdle: VTN-ETKPavilionCulet: NoneDepth 58.7%

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 6
Current: $3,015 USD|Low: $2,563 USD|High: $5,260 USD|Avg: $3,473 USD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 3$2,613 USD
Retailer 7$2,852 USD
Retailer 1$3,015 USD
Retailer 8$3,307 USD
Retailer 6$3,414 USD
Retailer 2$3,707 USD
Retailer 4$3,887 USD
Retailer 5$5,184 USD

38 data points across 8 retailers

20 retailers$2,349 USD to $5,548 USD

B+
Cheapest Retailer
-
$2,349 USD
B+
Retailer 2
-
$2,613 USD
View
B+
Retailer 3
-
$2,625 USD
View
B
Retailer 4
-
$2,719 USD
View
B
Retailer 5
-
$2,770 USD
View
B
Retailer 6
-
$2,770 USD
View
B
Retailer 7
-
$2,852 USD
View
B
Retailer 8
-
$2,860 USD
View
B
Retailer 9
-
$3,015 USD
View
B
Retailer 10
-
$3,090 USD
View
B
Retailer 11
-
$3,185 USD
View
Retailer 12
-
$3,185 USD
View
Price last confirmed 8 days ago
B
Retailer 13
-
$3,307 USD
View
B
Retailer 14
-
$3,327 USD
View
Retailer 15
-
$3,414 USD
View
Price last confirmed 33 days ago
B
Retailer 16
-
$3,674 USD
View
B
Retailer 17
-
$3,707 USD
View
B
Retailer 18
-
$3,887 USD
View
B
Retailer 19
-
$5,184 USD
View
Most Expensive
B
NZ Jewellers
08aad0d8-8048-47ea-b6a4-44e956ae65b9 · Nov 5
$5,548 USD
View
19 more retailers have this diamond
Prices start from $2,349 USDSave up to $3,199 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
$2,349 USD