Heart|Natural|GIA

1.20ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 3535557448

Certificate GIA 3535557448

Diamond specifications and retailer prices

From $1,712 USD
As of November 5, 2026
Save $340 USD (17%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,052 USD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded I 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 3535557448. Listed at 4 retailers as of November 5, 2026, with prices from $1,712 to $2,052, a $340 spread on the same certified stone. Blue Nile lists it at $2,052. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3535557448
Dimensions6.57 × 7.35 × 4.33 mm
L/W Ratio1.12
Top View
6.57 mm7.35 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3535557448
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: $2,052 USD|Low: $1,712 USD|High: $2,553 USD|Avg: $2,122 USD|-19.6%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 5, 2026
Retailer 3$1,712 USD
Retailer 2$1,850 USD
Retailer 4$1,951 USD
Blue Nile$2,052 USD
Retailer 5$2,399 USD

40 data points across 5 retailers

4 retailers$1,712 USD to $2,052 USD

A
Cheapest Retailer
-
$1,712 USD
A
Retailer 2
-
$1,850 USD
View
A
Retailer 3
-
$1,951 USD
View
Most Expensive
B+
Blue Nile
26742561 · Nov 5
$2,052 USD
View
3 more retailers have this diamond
Prices start from $1,712 USDSave up to $340 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
$1,712 USD