Heart|Natural|GIA

1.20ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 1389765519

Certificate GIA 1389765519

Diamond specifications and retailer prices

From $1,997 USD
As of November 6, 2026
Save $2,699 USD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,604 USD at NZ Jewellers · As of September 25, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1389765519. Listed at 17 retailers as of November 2, 2026, with a 135% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1389765519
Dimensions5.89 × 7.33 × 4.27 mm
L/W Ratio1.24
Key to symbols
Crystal, Feather, Needle, Natural
Top View
5.89 mm7.33 mm1.20 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1389765519
Side View
Table 53.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 58.2%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $1,997 USD|Low: $1,997 USD|High: $4,752 USD|Avg: $2,840 USD|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1$1,997 USD
Retailer 9$2,400 USD
Retailer 7$2,473 USD
Retailer 10$2,640 USD
Retailer 11$2,646 USD
Retailer 3$2,680 USD
Retailer 2$2,783 USD
Retailer 4$2,837 USD
Retailer 8$3,003 USD
Retailer 5$3,271 USD
Retailer 6$4,696 USD

42 data points across 11 retailers

17 retailers$1,997 USD to $4,696 USD

A
Cheapest Retailer
-
$1,997 USD
A
Retailer 2
-
$2,400 USD
View
A
Retailer 3
-
$2,473 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,640 USD
View
Retailer 5
-
$2,680 USD
View
Price last confirmed 45 days ago
Retailer 6
-
$2,680 USD
View
Price last confirmed 29 days ago
Retailer 7
-
$2,680 USD
View
Price last confirmed 21 days ago
Retailer 8
-
$2,783 USD
View
Price last confirmed 36 days ago
B+
Retailer 9
-
$2,783 USD
View
B+
Retailer 10
-
$2,837 USD
View
Retailer 11
-
$3,003 USD
View
Price last confirmed 30 days ago
Retailer 12
-
$3,093 USD
View
Price last confirmed 43 days ago
Retailer 13
-
$3,093 USD
View
Price last confirmed 28 days ago
B+
Retailer 14
-
$3,271 USD
View
B
Retailer 15
-
$4,696 USD
View
Retailer 16
-
$5,604 USD
View
Price last confirmed 38 days ago
Most Expensive
NZ Jewellers
c35b72c8-90a7-44f4-8f03-679c14585fc2 · Sep 25
$5,604 USD
View
Price last confirmed 42 days ago
16 more retailers have this diamond
Prices start from $1,997 USDSave up to $2,699 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.

A
1.20ct Heart
$1,997 USD